MARSRIVA SMART MINI DC UPS 10000MAH Capacity: 10000mAh / 37Wh. Output Interface: USB-A Output: 5V at 2.4A, DC Output: 5V / 9V / 12V (selectable) at 1.5A, POE Output: 5V at 2.4A. Dimensions: 104.5 x 170 x 30.8 mm. Net Weight: 360g. Color: Black. Specifications: MARSRIVA SMART MINI DC UPS 10000MAH Capacity: 10000mAh / 37Wh. Output Interface: USB-A Output: 5V at 2.4A, DC Output: 5V / 9V / 12V (selectable) at 1.5A, POE Output: 5V at 2.4A. Dimensions: 104.5 x 170 x 30.8 mm. Net Weight: 360g. Color: White.
Specifications : GENERAL Rated Power 5000VA / 5000W Communication Interface Removable USB / RS232 / RS485 / Bluetooth / Dry-contact Dimension D x W x H (mm) 115 x 300 x 400 Net Weight (kgs) 13 INPUT Voltage 230VAC Selectable Voltage Range 170 ~ 280 VAC (For Personal Computers)90 ~ 280 VAC (For Home Appliances) Frequency Range 50Hz / 60Hz (Auto sensing) OUTPUT AC Voltage Regulation (Batt. Mode) 230VAC ± 5% Surge Power 10000VA Efficiency (Peak) 90% ~ 93% Transfer Time 15 ms (For Personal Computers)20 ms (For Home Appliances) Waveform Pure sine wave BATTERY Battery Voltage 48VDC Floating Charge Voltage 54VDC Overcharge Protection 63VDC SOLAR & AC CHARGER Solar Charger Type MPPT Maximum PV Array Open Circuit Voltage 500VDC Maximum PV Array Power 5000W MPP Range @ Operating Voltage 120VDC~450VDC Maxmum Solar Charge Current 100A Maximum AC Charge Current 100A manufacturer link
The PROLINK PRO1501SFC Super Fast Charging UPS is designed to provide reliable backup power and voltage protection for computers, networking equipment, and office electronics. It helps maintain device operation during power interruptions and unstable electrical conditions. The UPS provides a 1500VA capacity and uses line interactive technology with Automatic Voltage Regulation (AVR). Additionally, AVR helps correct voltage fluctuations and provides stable power for connected equipment. The PROLINK PRO1501SFC features super-fast charging technology that reduces battery recharge time after power outages. Moreover, this allows the UPS to recover faster and become ready for future power interruptions. The UPS includes protection features against overload, short circuit, surge, and battery discharge. Furthermore, these safety functions help protect connected devices from common electrical issues. The PROLINK PRO1501SFC provides reliable backup support for homes, offices, and small work environments. Therefore, it is suitable for computers, routers, CCTV systems, and other essential electronic devices. The UPS features a practical design for easy installation and daily use. In addition, its line interactive operation provides efficient power management while maintaining equipment protection. The PROLINK PRO1501SFC Super Fast Charging UPS combines 1500VA backup capacity, AVR technology, fast charging, and protection features. As a result, it provides a dependable power solution for everyday electronic equipment. manufacturer link Specifications: Capacity: 1500VA / 900W Technology: Line Interactive UPS with AVR Charging: Super Fast Charging Technology Protection: Overload, Surge, Short Circuit, Battery Protection Application: Computer, Network, and Office Equipment Backup
UPS HAWK 2000VA 2kva 1 year warranty
Prolink PRO906WS 6KVA / 4800W Online UPS with AVR is a high-performance power backup solution designed for critical devices, servers, and sensitive electronics. It provides stable and continuous power protection against outages and voltage fluctuations. It features a 6000VA (4800W) capacity with pure sine wave output. Therefore, it ensures clean and reliable power delivery for computers, networking equipment, and industrial systems. In addition, it protects devices from sudden power loss and electrical damage. The UPS uses online double-conversion technology with built-in AVR (Automatic Voltage Regulation). As a result, it delivers consistent voltage output and improves equipment safety during unstable power conditions. It supports heavy-duty usage and long backup operation depending on load. Meanwhile, its robust design makes it suitable for business, IT infrastructure, and professional environments. Prolink designs its UPS systems for reliability and protection. Therefore, this model is an ideal choice for users who need uninterrupted and stable power supply for critical operations. manufacturer link Specifications: 6000VA / 4800W high capacity Pure sine wave output Online double-conversion UPS Built-in AVR voltage regulation Ideal for servers and critical systems
The PROLINK PRO1201 1200VA Super-Fast Charging UPS AVR is designed to provide reliable backup power and voltage protection for computers, networking equipment, and home electronics. It helps keep connected devices running during short power interruptions. The UPS provides a 1200VA capacity and uses Automatic Voltage Regulation (AVR) technology. Additionally, it helps stabilize unstable voltage levels to protect connected equipment from power fluctuations. The PROLINK PRO1201 features super-fast charging technology that helps reduce battery recharge time. Moreover, it allows the UPS to recover power faster after an outage and prepares it for future use. The UPS includes multiple protection features to help protect connected devices. Furthermore, it provides protection against overload, short circuit, surge, and low battery conditions during operation. The PROLINK PRO1201 features LED indicators that display important operating status information. Therefore, users can easily check the UPS condition and power status. The compact design makes the UPS suitable for homes, offices, and small workspaces. In addition, it provides a practical backup solution for computers, routers, and other essential devices. The PROLINK PRO1201 1200VA Super-Fast Charging UPS AVR combines backup power, voltage regulation, fast charging, and safety features. As a result, it provides reliable power support for everyday electronic equipment. Specifications: Capacity: 1200VA / 720W Technology: Automatic Voltage Regulation (AVR) Charging: Super-Fast Charging Technology Protection: Overload, Short Circuit, Surge, Low Battery Protection Display: LED Status Indicators
INVO Online INH100 INVO Online INH100 Centralized server center, mainframe, network control center, computing center max efficiency UPS System . AC Input Bypass AC Output . Battery Fault Screen OFF ON LCD AC Input Bypass AC Output Battery Fault Screen OFF ON LCD INVO Online INH100 Full Specifications : INVO Online INH100 Centralized server center, mainframe, network control center, computing center INVO Online INH100 UPS High Frequency 1000 VA, LCD Display Inbuilt Battery 2 x 12V/9AH Specifications: Specifications : Centralized server center, mainframe, network control center, computing center INVO Online UPS High Frequency 1000 VA, LCD Display Inbuilt Battery 2 x 12V/9AH 1 year warranty Manufacturer Link
Specifications : GENERAL UPS Type : Tower Phase : Single phase with ground Rating (VA) : 2000 Nominal Power (W) : 1600 Standard Model Dimension (mm) : 397x 145 x 220 (D x W x H) Weight (kg) : 17 Long-run Model Dimension (mm) : 397 x 145 x 220 (D x W x H) Weight (kg) : 6.8 INPUT Connection Type : IEC 320-C14 Nominal Voltage : 200/208/220/230/240 VAC Voltage Range : 110-300 VAC (Load at 50%) 160-280 VAC (Load at 100%) Frequency Range : 45 ~ 70 Hz Power Factor : >= 0.99 OUTPUT Connection Type : 3 x Universal socket (PRO902WS) 2 x Universal socket (PRO902WL) Nominal Voltage : 200/208/220/230/240 VAC Voltage Regulation : ±1% Frequency Range (Synchronized Range) : 47 ~ 53 Hz or 57 ~ 63 Hz Frequency Range (Batt. Mode) : 50 Hz ± 0.25 Hz or 60 Hz ± 0.3 Hz Current Crest Ratio : 3:1 Harmonic Distortion ; ≤3% THD (Linear load) ≤6% THD (Non-linear load) ALARM & INDICATORS Battery Mode : Sounding every 4 seconds Low Battery : Sounding every second Overload : Sounding twice every second Fault : Continuously sounding LCD : Load level, Battery Level, AC mode, Battery mode, Bypass mode and Fault CONNECTIVITY, CONTROL & MONITORING Front panel : Status LED, Function keys, LCD display Communication : Smart RS232* USB : Port BATTERY Standard Model Type : 12V / 9Ah Numbers : 4 Typical Recharge Time : 4 hours recover to 90% capacity Long-run Model Type : Depending on the capacity of external batteries Number : 4/6/8 Charging Current (max) : 1A / 2A / 4A / 6A Adjustable REAR PANEL 1. AC Input 2. Input circuit breaker 3. USB Communication port 4. RS-232 communication port 5. Intelligent slot 6. External battery connection (Only available for L model) 7. Output receptacles
The Beco GP1200 1200VA 720W UPS delivers reliable power backup for home and office electronics. It keeps key devices running during outages. This helps prevent data loss and sudden shutdowns. Users gain peace of mind knowing devices stay protected. Moreover, the Beco GP1200 1200VA 720W UPS features 1200 VA capacity and 720 W output power for strong support. It handles computers, routers, modems, and monitors easily. Large systems stay powered long enough to save work. Performance stays stable and secure. In addition, the UPS includes built-in surge protection for reliable defense against voltage spikes. It guards appliances from unstable power conditions and electrical surges. This adds extra safety during storms or fluctuations. Protection stays consistent over time. Furthermore, the Beco GP1200 1200VA 720W UPS offers automatic voltage regulation without manual settings. It smooths voltage drops and spikes quickly. This helps connected devices run smoothly. Reliability increases in daily use. Also, the UPS provides battery backup when power fails. You can finish tasks and save important files before turning off systems. This reduces the risk of data corruption. Backup power feels dependable. In addition, the Beco GP1200 1200VA 720W UPS includes clear LED indicators for power and battery status. You can check performance at a glance. This helps monitor conditions with ease. Users stay informed during operation. Moreover, the UPS includes multiple output sockets for connecting more devices at once. This improves flexibility for busy workstations and entertainment setups. You can protect multiple electronics with one unit. Furthermore, the Beco GP1200 1200VA 720W UPS supports easy installation and quick setup. Users can connect devices without complicated steps. Setup remains simple for all users. Also, the compact design fits neatly on desks, shelves, or cabinets without taking much room. It blends well into home and office spaces. Portability stays practical. Overall, the Beco GP1200 1200VA 720W UPS delivers strong battery backup, surge protection, and smooth voltage regulation. It guards electronics and ensures uninterrupted use. This UPS is ideal for users seeking reliable, everyday power protection. Specifications: 1200VA, 720W, LED, Plastic Case Input: 140-290 VAC Output: 230VAC 50/60HZ 12V 7.5AH *2pcs, Universal Socket *4 + EU Plug With AVR, Bypass output Overload and short circuit protection
The Eaton 9E UPS Online Double Conversion 6000VA 4800W is a powerful and reliable power backup solution. It ensures uninterrupted power for critical devices, protecting them from outages and fluctuations. This UPS uses advanced double-conversion technology for maximum power reliability. It provides consistent and clean power, making it perfect for sensitive equipment like servers, medical devices, and data centers. The Eaton 9E UPS delivers 6000VA (4800W) of capacity, making it suitable for high-load environments. Its robust design ensures consistent performance even during extended power outages. This makes it ideal for businesses that cannot afford downtime. Setting up the UPS is simple, and it integrates seamlessly into existing systems. It comes with an intuitive LCD interface, making monitoring and management straightforward. You can easily view critical information, such as load levels, battery status, and alerts. The Eaton 9E UPS also features a scalable runtime. You can add additional battery modules to extend backup time as your needs grow. This flexibility ensures long-term usability and value. With its compact footprint, the UPS saves space in your office or server room. Its energy-efficient design reduces operating costs while ensuring reliable performance. This UPS is equipped with advanced features, such as remote monitoring capabilities. Using Eaton’s management software, you can monitor and control the UPS from anywhere. The Eaton 9E UPS Online Double Conversion 6000VA 4800W is a reliable investment for protecting your critical systems. Ensure uninterrupted power for your business with this advanced and efficient UPS solution. Specifications: Wattage : 4800W VA Rating : 6000 VA
APC Easy UPS On-Line SRV 10000VA 230V SRV10KI is a high-capacity online uninterruptible power supply designed for critical business infrastructure, servers, and data center environments. It provides continuous, clean, and stable power using true double-conversion technology. It delivers 10000VA / 10000W (approx.) power capacity for heavy-duty applications. Therefore, it can support multiple servers, networking equipment, and sensitive electronics during power failures or voltage fluctuations. In addition, it ensures uninterrupted operation for mission-critical systems. The UPS uses online double-conversion technology to fully isolate connected equipment from utility power disturbances. As a result, it provides consistent, regulated pure sine wave output at all times. It includes an LCD interface for real-time monitoring of system status, load, and battery conditions. Meanwhile, built-in protection features enhance system safety and operational reliability. APC designs the Easy UPS SRV series for enterprise-grade power protection. Therefore, this model is ideal for data centers, IT infrastructure, and critical business applications requiring maximum uptime. Manufacturer link Specifications: 10000VA high-capacity output Online double-conversion UPS system Pure sine wave power output LCD monitoring display Enterprise-grade power protection
The INVO INSR Stabilizer offers automatic voltage regulation for homes and offices. It supports single-phase input from 1000 VA to 5000 VA, covering multiple needs . Moreover, it features a clear LCD that shows input and output voltages. This stabilizer uses a sturdy metal cabinet to protect internal parts. Also, it adds a three-second power delay to protect connected devices . Therefore, your appliances start safely after power returns. It comes in models such as INSR1000, 1500, 2000, 3000, and 5000 VA. This range suits small PCs to mid-sized equipment and appliances . Additionally, installation is easy via wall mount or tabletop placement. Built-in protections include overvoltage, undervoltage, and overload safety. This helps prevent damage during electrical fluctuations. It also resists heat and short circuit events. Thus, it keeps both electronics and home safe. Thanks to its servo-controlled design, it delivers steady output within ±3%. Hence, your sensitive devices run smoothly and securely. It also operates quietly, ideal for offices and study rooms. Plus, it’s energy efficient and requires minimal maintenance. Furthermore, its LCD display and simple controls make setup fast. The stabilizer supports various uses like PCs, printers, routers, TVs, and appliances. In short, the INVO INSR Stabilizer combines solid performance, safety, and ease. Choose this device when you need dependable voltage control at home or office. Specifications: INSR300 INVO Automatic Voltage Regulator 3000VA, LCD Display ,Single Phase, Metal Cabinet, Delay 3 secs INSR200 INVO Automatic Voltage Regulator 2000VA, LCD Display ,Single Phase, Metal Cabinet, Delay 3 secs INSR150 INVO Automatic Voltage Regulator 1500VA, LCD Display ,Single Phase, Metal Cabinet, Delay 3 secs INSR100 INVO Automatic Voltage Regulator 1000VA, LCD Display ,Single Phase, Metal Cabinet, Delay 3 secs INSR50 INVO Automatic Voltage Regulator 1000VA, LCD Display ,Single Phase, Metal Cabinet, Delay 3 secs
The Twist Online High Frequency UPS 2KVA TWUP2000/HF provides continuous backup power for servers, workstations, and networking equipment. It uses online double conversion technology for stable and clean power delivery. Additionally, the high-frequency design improves efficiency and reduces transfer interruptions. Moreover, the UPS includes an LCD display for real-time monitoring and system alerts. It also features internal 4x12V/9Ah batteries for backup operation during outages. Therefore, it protects connected devices from voltage fluctuations, overloads, and power failures. Furthermore, the TWUP2000/HF supports pure sine wave output for sensitive electronics and professional equipment. It also includes overload, short-circuit, and surge protection for safer operation. Additionally, the compact tower design fits office, server room, and IT environments easily. Specifications: 2KVA online double conversion UPS technology Internal 4x12V/9Ah rechargeable batteries LCD display for real-time monitoring Pure sine wave output for stable power delivery Overload and short-circuit protection system
Presentation High quality, Double-conversion On-line UPS designed for essential power protection needs even in the most unstable power conditions. Lead time Usually in Stock General provided equipment Basic UPS signalling RS-232 cable CD with software Rack mounting brackets User manual USB cable Number of tare power 25 W Number of power module free slots 0 Number of power module filled slots 0 redundant No UPS size WS Physical number of rack unit 5U colour Black depth 61.5 cm height 21.95 cm net weight 78 kg USB compatible Yes width 43.8 cm Input network frequency 40…70 Hz number of input connectors 1 hard wire 3-wire (1P + N + E) input voltage limits 110…300 V adjustable (half load) 176…300 V inputvolt_other 220 V 240 V input voltage 230 V Output rated power in W 6000 W Maximum configurable power in W 6000 W output frequency 50/60 Hz +/- 3 Hz sync to mains outputvolt_other 220 V 240 V crest factor 3 : 1 UPS type Double conversion online Wave type Sine wave output connector type Hard wire 3-wire (H N + E) 1 bypass type Internal bypass (automatic and manual) curve equation Efficiency curve load maximum 100 % curve X-axis maximum 100 % curve X-axis minimum 0 % curve X-axis title Load curve X-axis units Percentage curve Y-axis maximum 100 % curve Y-axis minimum 50 % curve Y-axis title Efficiency curve Y-axis units Percentage efficiency 94 % (full load) graph display 1 half load runtime 00:10:00 3000 W output voltage 230 V Maximum configurable power in VA 6000 VA rated power in VA 6000 VA Conformance product certifications CE standards IEC 62040-1-1 IEC 62040-1-2 Environmental ambient air temperature for operation 0…40 °C relative humidity 0…95 % non-condensing operating altitude 0…3000 m ambient air temperature for storage -15…60 °C Storage Relative Humidity Non-condensing 0…95 % storage altitude 0…15000 m acoustic level 55 dB show note OP temperature No IP degree of protection IP20 Batteries & Runtime battery type Lead-acid battery number of battery filled slots 0 number of battery free slots 0 Battery recharge time 3 h additional information Configurable for 220 : 230 or 240 nominal output voltage liquid value 0 battery curve D Battery power in VAH 1512 VAh runtime battery option SRV240RLBP-9A 1 3024 VAh SRV240RLBP-9A 2 4536 VAh SRV240RLBP-9A 3 6048 VAh SRV240RLBP-9A 4 7560 VAh SRV240RLBP-9A Communications & Management free slots 1 control panel Multifunction LCD status and control console alarm Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm Emergency power off Yes manufacturer link 1 YEAR WARRANTY
UPS PCE EXDC-2 MAX UPS Adapter for Cameras & Modems
In the realm of uninterruptible power supplies (UPS), the Fanshine FSUPS 2000VA 900W stands out as a dependable solution, offering a robust and efficient power backup for your electronic devices. Transitioning to its key features, the UPS Fanshine FSUPS 2000VA 900W excels in providing a substantial power capacity, ensuring that your critical electronics remain powered during unexpected outages. This UPS is designed to safeguard your equipment and data. Moreover, this power supply solution impresses with its compact design, making it suitable for various settings, from home offices to small businesses. The Fanshine FSUPS seamlessly integrates into your space without compromising on performance. In addition to its functionality, the FSUPS 2000VA 900W offers versatile connectivity options, including multiple outlets for various devices. This ensures a flexible and efficient setup, protecting a range of electronics from power fluctuations. Furthermore, Fanshine’s commitment to user-friendly design is evident in the FSUPS 2000VA 900W’s easy setup and clear indicators. This ensures that users can monitor the status of their power supply effortlessly. In conclusion, the Fanshine FSUPS 2000VA 900W redefines reliability in power backup solutions, combining substantial capacity, compact design, and user-friendly features. Elevate your protection against power interruptions effortlessly with the FSUPS 2000VA 900W – your trusted solution for uninterrupted power! Specifications Model : FSUPS2000VA Input Voltage : 145VAC~290VAC Output Voltage : 195VAC~255VAC Output Wave Form : PWM/DC Output Frequency : 50Hz Backup Time : 10 to 15 minutes Noise Level : <45dB Operating Temperature : 0-45 Celsius
APC UPS Accessories SRVRK1 APC Easy UPS RAIL KIT, 700MM, 1 – 10KVA (Rackable SRV models)
FANTECH NS12 Laptop Stand is a portable and adjustable stand designed to improve comfort, posture, and laptop cooling. It is suitable for office work, study, and remote setups where ergonomic positioning is important. It offers 16 levels of height adjustment, allowing users to find the most comfortable viewing angle. Therefore, it helps reduce neck and shoulder strain during long hours of use. The stand is built with durable aluminum alloy for strong stability and long-term use. In addition, it supports laptops up to 15.6 inches securely. Its foldable design makes it easy to carry and store in a bag. Moreover, the included free pouch improves portability for travel and daily commuting. The open-frame structure enhances airflow around the laptop. As a result, it helps improve cooling performance during heavy use. Specifications: 16-level height adjustment system Durable aluminum alloy construction Supports laptops up to 15.6 inches Foldable portable lightweight design Free carrying pouch included
FANTECH NS10 Lifting Laptop Stand is a compact and adjustable stand designed to improve comfort and ergonomics during laptop use. It is suitable for office work, study, and home setups. It features height and angle adjustment to help users find a comfortable viewing position. Therefore, it reduces neck and shoulder strain during long working hours. The sturdy frame provides stable support for laptops of different sizes. In addition, it keeps the device secure during typing and daily use. Its open design improves airflow around the laptop. Moreover, this helps reduce heat buildup and supports better cooling performance. The stand is lightweight and easy to adjust, making it practical for everyday use. As a result, it offers a simple and effective ergonomic solution for any workspace. Specifications: Max Weight Load : 10 KG Material : Steel Size : 259 x 225 x 43mm Weight : 1440 Compatibility : Laptops or Tablets up to 17 inches
FANTECH NS10 Lifting Laptop Stand Silver is a height and angle adjustable stand designed to improve comfort, posture, and airflow during laptop use. It is suitable for office work, study, and home setups. It allows flexible adjustment of height and viewing angle to match user preference. Therefore, it helps reduce neck and shoulder strain during long working hours. The sturdy aluminum-style frame provides stable support for laptops of different sizes. In addition, it keeps the device secure during typing and daily use. Its open design improves ventilation around the laptop. Moreover, this helps reduce heat buildup and supports better cooling performance. The lightweight and foldable structure makes it easy to carry and store. As a result, it offers a practical ergonomic solution for everyday use. Specifications: Max Weight Load : 10 KG Material : Steel Size : 259 x 225 x 43mm Weight : 1440 Compatibility : Laptops or Tablets up to 17 inches
FANTECH NC30 Laptop Cooling Stand is designed to improve laptop cooling, comfort, and usability during long gaming or working sessions. It supports laptops up to 17.3 inches, making it suitable for both gaming laptops and professional setups. It features a detachable RGB fan that provides active cooling to reduce heat buildup. Therefore, it helps maintain stable performance during heavy workloads and extended use. The stand offers adjustable height and a 360° swivel design for flexible positioning. In addition, it improves ergonomic comfort by allowing users to find the best viewing angle. Its strong structure ensures stable support for large laptops. Moreover, the open design enhances airflow for better passive cooling efficiency. The RGB lighting adds a stylish gaming aesthetic to any setup. As a result, it combines performance, comfort, and visual appeal in one cooling solution. Specifications: Detachable RGB cooling fan Adjustable height ergonomic design 360° swivel rotation base Supports laptops up to 17.3 inches Enhanced airflow cooling structure
FANTECH NS11 Portable Aluminum Laptop Stand is designed to improve comfort, posture, and airflow while using a laptop. It is suitable for office work, study, and remote setups. It features an adjustable height and angle design that allows users to position their laptop at a more ergonomic viewing level. Therefore, it helps reduce neck and back strain during long working sessions. The stand is made from durable aluminum alloy for strong support and long-lasting use. In addition, it provides stable holding for laptops up to 15.6 inches. Its foldable and lightweight design makes it easy to carry and store. Moreover, the included free pouch adds convenience for travel and portability. The open structure improves ventilation and helps prevent laptop overheating. As a result, it offers a practical solution for comfortable and efficient laptop use. Specifications: Adjustable height and viewing angle Durable aluminum alloy construction Supports laptops up to 15.6 inches Foldable portable lightweight design Includes free carrying pouch
FANTECH NC21 Cooling Pad is designed to improve laptop cooling performance, comfort, and usability during long gaming or working sessions. It supports efficient airflow with a powerful dual-fan system for stable temperature control. It features large dual fans that deliver strong cooling performance across the laptop base. Therefore, it helps reduce overheating and maintain smoother system performance during heavy use. The stand includes 8 levels of height adjustment for better ergonomic positioning. In addition, it helps reduce neck and back strain by improving viewing angles. A built-in phone holder adds extra convenience for multitasking. Moreover, RGB lighting enhances the gaming setup with a stylish visual effect. Its sturdy design supports stable laptop placement while maintaining effective airflow. As a result, it combines cooling, comfort, and functionality in one setup solution. Specifications: Max Weight Load : 10 KG Material : Steel Size : 259 x 225 x 43mm Weight : 1440 Compatibility : Laptops or Tablets up to 17 inches