The Transcend Portable SSD 1TB ESD410C offers exceptional speed and reliability for all your storage needs. Whether you’re a professional or a traveler, this SSD delivers unmatched performance. With its high-speed USB 3.1 Gen 2 interface, the Transcend Portable SSD 1TB ensures fast data transfer rates. You can quickly move large files, including photos, videos, and documents, without any delays. Designed for portability, the Transcend Portable SSD 1TB is compact and lightweight. It easily fits in your pocket or bag, making it perfect for on-the-go use. The durable casing of the Transcend Portable SSD 1TB ESD410C provides excellent protection against shocks and drops. You can confidently carry it anywhere, knowing your data is safe and secure. With 1TB of storage capacity, this SSD offers ample space for all your important files. From multimedia projects to backup files, you have plenty of room for everything you need. The Transcend Portable SSD 1TB is compatible with various operating systems, including Windows, Mac, and Linux. This versatility makes it a great choice for users with different devices. Setting up the Transcend Portable SSD 1TB is easy. Just plug it into your device, and you’re ready to start transferring files. No additional software or drivers are needed. In summary, the Transcend Portable SSD 1TB ESD410C combines speed, reliability, and portability. Upgrade your storage solution today and experience the benefits of high-speed data transfer and durable design. Specifications: Capacity : 1TB Sequential Read Speed : 2,000 MB/s Sequential Write Speed : 2,000 MB/s USB Type : USB Type C to USB Type A, USB Type C to USB Type C Connection Interface : USB 20Gbps
Genuine-quality replacement A1989 battery testing flex cable—brand new and ready for professional MacBook Pro 15" (2018–2019) battery diagnostics and repairs. Genuine-quality replacement A1989 battery testing flex cable—brand new and ready for professional MacBook Pro 15″ (2018–2019) battery diagnostics and repairs. This is a brand-new A1989 Battery Testing Flex Cable, designed specifically for use in MacBook Pro 15-inch models from 2018 and 2019 (A1989) during battery replacement or diagnostic procedures. The flex cable connects the battery to the logic board’s test points, allowing technicians to verify battery health, voltage, and communication before final reassembly—ensuring safe and accurate repairs. Made with high-quality materials and precise engineering, this flex cable matches OEM specifications for fit, function, and reliability. It’s an essential tool for certified repair shops, independent technicians, and advanced DIYers performing battery servicing on T2-chip MacBook Pro models. Please note: This is not a full battery—it is the small flex cable used during battery testing and installation. Proper handling and ESD-safe practices are recommended during installation. Compatible with: MacBook Pro 15″ (2018, A1989) MacBook Pro 15″ (2019, A1989)
Laser Drum Unit Printing technology: Laser Product type: Drum Unit Color: Black Page yield: 12,000 pages For use with Brother mono laser printers: DCP-L2535D, DCP-L2550DW, HL-L2335D, HL-L2370DN, HL-L2375DW, MFC-L2715DW, MFC-L2750DW Specifications: SKU: BR006EA19YE67NAFAMZ Color: Black Model: Brother DR-2405 Production Country: Japan 1 year warranty Manufacturer Link
The AOC 27G40 27″ 180Hz Gaming Monitor is built for serious gamers who want fast and smooth performance. It features a 27-inch Fast IPS screen with Full HD resolution. The colors are bright, and the details are sharp from every angle. With a 180Hz refresh rate, your games will run ultra-smooth and clear. Fast motion feels natural with no lag or delay. The 1ms response time helps reduce motion blur and ghosting during fast-paced scenes. Thanks to Adaptive-Sync, you won’t have screen tearing or stuttering. This makes gameplay seamless and enjoyable, even in intense battles. The monitor also supports HDR10 for improved contrast and color accuracy. It covers 128% of the sRGB color space, giving you bold and rich visuals. The screen reaches 300 nits of brightness, so everything stays clear in bright rooms. The AOC 27G40 27″ 180Hz Gaming Monitor includes HDMI 2.0 and DisplayPort 1.4 connections. You can easily connect your PC, console, or other devices. Its ergonomic stand lets you adjust the height, tilt, swivel, and pivot the screen. This helps you find the most comfortable viewing angle. You can also mount it using a VESA-compatible setup for more flexibility. Whether you’re gaming casually or competitively, this gaming monitor delivers excellent speed, clarity, and color. It’s built to meet the demands of modern gaming with style and comfort. Specifications: Display : 27″ Rapid IPS Resolution : 1920×1080 FHD Refresh Rate : 180Hz Response Rate : 0.5ms Speaker : 2W x2 Adjustable : Fully adjustable
The Cudy WR1200 AC1200 Router offers flexible networking with its 5-in-1 functionality and dual-band WiFi speeds up to 1200Mbps. Ideal for home and office use, it provides stable connectivity, wide coverage, and multiple operating modes to suit different network needs. AC1200 Dual Band WiFi – Combined speeds of up to 1200Mbps (300Mbps on 2.4GHz + 867Mbps on 5GHz) for smooth browsing, streaming, and gaming. 5-in-1 Multi-Mode Functionality – Works as Router, Access Point, Range Extender, WISP, and Client for maximum flexibility. Wide Coverage – High-gain antennas ensure strong and stable WiFi signal throughout your home or office. Fast Ethernet Ports – Reliable wired connections for computers, smart TVs, and other devices. Easy Setup & Management – Simple configuration through an intuitive web interface. Stable Multi-Device Performance – Designed to handle multiple connected devices efficiently. Secure Network – WPA/WPA2 encryption keeps your connection safe and private. 1 × WAN Port 4 × LAN Ports Dual Band WiFi (2.4GHz & 5GHz) Ethernet (RJ45) Wireless Security (WPA/WPA2)
The ADATA Legend 710 SSD M.2 2280 delivers fast storage for modern PC builds. This SSD boosts system speed and reduces loading times instantly. Plus, the ADATA Legend SSD M.2 2280 supports PCIe Gen4 for ultra‑fast data transfer. It fits standard M.2 2280 slots in desktops and laptops easily. Moreover, its compact design allows installation in slim ultrabooks and mini PCs. With its high endurance, the ADATA Legend SSD M.2 2280 handles heavy workloads daily. Additionally, it includes heat‑spreading graphite for stable performance under stress. Because of optimized thermal control, it avoids thermal throttling during gaming or editing. Furthermore, this SSD uses LDPC error correction for reliable data integrity every time. Also, the ADATA Legend 710 SSD M.2 2280 supports SMART tools for drive health monitoring. It works well with Windows and Linux systems without needing extra drivers. Besides that, its firmware updates help maintain peak performance over time. If you need fast boot times, the ADATA Legend SSD M.2 2280 delivers excellent results. In fact, it accelerates app launch speeds by impressive margins. Also, gamers can load levels quicker with this high‑speed SSD. Moreover, content creators enjoy fast file transfers with large media files. With capacities up to 2TB, the ADATA Legend SSD M.2 2280 suits most storage needs. So, whether for gaming or work, this SSD fits your demands. Plus, installation is tool‑free—just plug and secure in place. As a result, you save time upgrading your system. Therefore, the ADATA Legend 710 SSD M.2 2280 is an ideal choice for PC enthusiasts. It offers speed, durability, and compatibility you can rely on. Specifications: Form factor : M.2 2280 NAND Flash : 3D NAND Interface : PCIe Gen3 x4 Sequential Read (Max) : Up to 2,400MB/s Sequential Write (Max) : Up to 1,800MB/s
The Fantech GS305 BEAT BAR Dual Mode RGB Gaming Speaker is a compact soundbar designed for gaming, music, videos, and everyday desktop use. It delivers stereo audio through dual drivers that provide clear sound with balanced output for small to medium desktop setups. It supports dual-mode connectivity, allowing both Bluetooth wireless and wired connections via USB and 3.5mm AUX. Therefore, it offers flexible compatibility with PCs, laptops, smartphones, and gaming consoles. The speaker features RGB lighting effects that enhance gaming setups and add visual atmosphere to the desk. In addition, it includes an integrated volume control knob for quick and easy adjustments. Its slim soundbar design fits neatly under monitors, helping save desk space while keeping audio output accessible. Moreover, the metal mesh build adds durability and a clean gaming aesthetic. The plug-and-play setup ensures quick installation without complex configuration. As a result, it provides a simple audio solution for everyday gaming and multimedia use. Specifications: Plug Type : 3.5mm AUX + USB RGB Llighting Effects Control : Convenient Independent Volume Control Knob Range : 10M Dimension : 488x75x72mm
The MSI MAG E18 32-inch curved gaming monitor delivers smooth performance and immersive visuals for modern gaming setups. It features a wide display that enhances focus and creates a more engaging experience. Therefore, users can enjoy both casual and competitive gameplay with better visual coverage. Moreover, the WQHD resolution provides clear and detailed images for games and multimedia. The curved design improves viewing comfort and keeps content within your natural field of view. In addition, the 180Hz refresh rate ensures fluid motion during fast-paced scenes. The fast 0.5ms response time reduces motion blur and improves clarity in action sequences. As a result, players gain better control and precision. Furthermore, the panel maintains consistent colors and wide viewing angles, which enhances overall visual quality. In addition, adaptive sync support helps eliminate screen tearing and stuttering. This creates a more stable and enjoyable gaming experience. The monitor also includes multiple connectivity options, allowing easy integration with gaming systems and PCs. MSI MAG E18 32 monitor offers a strong balance of speed, clarity, and immersion. MSI MAG E18 32 monitor is a reliable choice for gamers who want smooth performance and consistent visuals. Specifications: 32-inch WQHD (2560 × 1440) curved display 180Hz refresh rate for smooth gameplay 0.5ms response time for reduced motion blur Curved panel for immersive viewing experience Multiple connectivity ports for flexible setup
AOC C27G4Z 27″ 280Hz 0.3ms curved gaming monitor delivers ultra-fast performance designed for competitive gaming. It focuses on high refresh rate, low response time, and immersive curved visuals. Additionally, it features a 27-inch Fast VA curved panel. This panel uses a 1500R curvature, so it creates a more immersive and focused gaming experience. Moreover, the monitor supports a 280Hz refresh rate with 0.3ms MPRT response time. As a result, it provides extremely smooth motion and reduced blur for fast-paced gameplay. The display uses Full HD resolution (1920 × 1080). Therefore, it allows higher frame rates and consistent performance, especially in competitive esports titles. In addition, it includes Adaptive Sync technology. This reduces screen tearing and stuttering, so gameplay stays smooth across different frame rates. Furthermore, it supports HDR10, low input lag mode, and gaming features such as crosshair overlays and color tuning. These features improve visibility and responsiveness during gameplay. The monitor also includes HDMI and DisplayPort connectivity, along with a 3-sided frameless design for multi-monitor setups. AOC C27G4Z 27″ 280Hz 0.3ms curved gaming monitor provides high-speed performance, immersive design, and competitive-level responsiveness for serious gamers. Check out other option here! Specifications: 27-inch curved Fast VA panel with 1500R curvature 280Hz refresh rate for ultra-smooth gaming performance 0.3ms MPRT response time for minimal motion blur Adaptive Sync support for tear-free gameplay Full HD 1920 × 1080 resolution optimized for high FPS gaming
Alienware 25 Gaming Monitor: AW2521HFLA Diagonal Viewing Size: 62.2 cm 24.5 Inches Preset Display Area (H x V) 543.744 mm x 302.616 mm 21.41″” x 11.91″” 164545.63 mm2 (255.04 inches2) Alienware 25 Gaming Monitor Panel Type: Fast IPS Display Screen Coating Antiglare with 3H hardness Maximum Preset Resolution 1920 x 1080 at 240Hz Viewing Angle (178° vertical / 178° horizontal) Pixel Pitch 0.283 mm x 0.280 mm Pixel Per Inch (PPI) 90 Contrast Ratio 1000: 1 (typical) Aspect Ratio (16:9) Backlight Technology LED edgelight system Brightness 400 cd/m2 (typical) Response Time(typical) True 1ms (gray to gray, in Extreme Mode) Audio Output No Connectivity Connectivity 2 x HDMI (ver 2.0) 1 x DP 1.2 1 x USB 3.0 upstream port (Rear) 2 x USB 3.0 Downstream port (Rear) 2 x USB 3.0 Downstream port [Front Bottom, one with BC1.2 charging capability at 2A(max)] 1 x Headphone-out jack (Front Bottom) 1 x Audio Line-out jack( Rear)AMD Free-Sync™ YesNVIDIA® G-SYNC® Compatible YesAlienFX™ Lighting Yes Dimensions & Weight Height with stand (Compressed ~ Extended) 421.21 mm ~526.08 mm 16.58″ ~ 20.71″ Width 556.29 mm 21.90″Depth 251.92 mm 9.92″Height without stand 328.24 mm 12.92″Width without stand 556.29mm 21.90″ Depth without stand 72.95 mm 2.87″ Weight (panel only – for VESA mount) 3.55 kg 7.81 lb Weight (with packaging) 11.22 kg 24.71 lb Power Voltage Required 100 VAC to 240 VAC / 50 Hz or 60 Hz + 3 Hz /1.5 A (typical)Power Consumption 0.2 W (Off Mode) 0.3 W (Standby Mode) 20.4 W (On Mode) 72 W (Max) Environmental Temperature Range Operating: 0° to 40°C (32° to 104°F) Non-operating: -20° to 60° (-4° to 140° F)Humidity Range Operating: 10% to 80% (non-condensing) Non-Operating:5% to 90% (non-condensing)Altitude Operating: 5,000 m (16,404 ft) max Non-Operating: 12,192 m (40,000 ft) max Chassis Adjustability Height adjustable stand (130 mm) and Height-markers Tilt (-5° to 21°) Swivel (-20° to 20°) Pivot (-90° to 90°) Built in cable-management Low Blue Light Yes, Comfort View Flicker-free Yes Specifications – Service / Support Details 3-Year Advanced Exchange Service and Premium Panel Exchange Color Support Color Gamut (typical): sRGB 99% Color Depth: 16.78 Million colors Built-in Devices NA Flat Panel Mount Interface VESA (100 mm) Specifications: Alienware 25 Gaming Monitor 240Hz refresh rate ips Panel Type: Fast IPS Color Support Color Gamut (typical): sRGB 99% 1 Year Warranty Manufacturer Link
The Logitech Brio 105 Business Webcam is the perfect solution for professional video calls and virtual meetings. It delivers sharp video quality, ensuring you always look your best on screen. This compact webcam features Full HD 1080p resolution for clear and detailed video. It captures your image with precision, even in low-light settings, thanks to its advanced light correction technology. Setting up the Logitech Brio 105 Business Webcam is simple. Just plug it into your computer’s USB port, and it’s ready to use. It works seamlessly with popular platforms like Zoom, Microsoft Teams, and Google Meet. The built-in microphone ensures your voice comes through loud and clear. It reduces background noise, making your conversations sound professional and distraction-free. Whether you’re in a busy office or working from home, this webcam ensures clear communication. Its compact design makes it easy to carry wherever you go. The clip-on mount fits securely on laptops, monitors, or desks, giving you flexibility in setup. With a 70-degree field of view, you stay perfectly centered during your calls. The Logitech Brio 105 Business Webcam is compatible with Windows and macOS. It’s ideal for remote work, online teaching, or virtual conferences. Its reliable performance ensures you stay connected without interruptions. Upgrade your video communication with the Logitech Brio 105 Business Webcam. It combines simplicity, performance, and portability, making it the ideal choice for professionals. Specifications: Resolution : 1080p/30fps, 720p/30fps Camera : 2 Megapixels Built-in microphone type : omnidirectional microphone USB Connectivity : USB-A Plug and Play
UB500 Bluetooth USB Adapter for Long Range Wireless Connectivity The UB500 Bluetooth USB Adapter provides reliable long range Bluetooth 5.3 connectivity for computers and laptops. It installs quickly via USB, therefore users connect headsets, keyboards, mice, and speakers without delay. Moreover, this adapter supports Bluetooth 5.3 technology, enhancing stability and reducing wireless interruptions during daily use. As a result, users enjoy smooth audio streaming and faster data transfers across connected Bluetooth devices. In addition, the UB500 Bluetooth USB Adapter improves wireless range, so devices can stay connected even at greater distances. This makes it ideal for home offices, classrooms, and shared workspaces where users need flexible placement. Furthermore, its compact design fits easily into USB ports without blocking adjacent slots or needing extra space. Consequently, users can leave the adapter plugged in without worry while on the go or at home. Meanwhile, advanced Bluetooth technology helps reduce power consumption, keeping connected devices efficient and responsive. Setup remains simple with plug-and-play functionality on most operating systems without complicated steps. Users can pair multiple devices at the same time, improving productivity and entertainment experiences. Therefore families and professionals benefit from stable wireless connections throughout the day. Moreover, this adapter enhances compatibility with newer and older Bluetooth devices, so users avoid connection problems. The UB500 Bluetooth USB Adapter balances performance and convenience for everyday wireless needs. With reliable connectivity and extended range, it supports video calls, music playback, gaming, and file transfers. Overall, the design and capability make it a practical accessory for modern PC setups. Specifications: Long range Bluetooth 5.3 wireless connectivity Fast USB installation for plug-and-play use Supports multiple Bluetooth devices simultaneously Compact form factor for easy and permanent USB fit Stable connections for audio, gaming, and data transfer
The Fantech WG11 Cruiser Wireless Gaming Mouse offers precision and speed for an immersive gaming experience. Whether you’re playing competitively or casually, this mouse delivers the accuracy you need. Featuring wireless technology, the Fantech Cruiser provides a clutter-free setup for your gaming station. The 2.4GHz wireless connection ensures a stable, lag-free experience, giving you the freedom to move without restriction. Designed for comfort, the ergonomic shape of the Fantech Cruiser fits naturally in your hand. This reduces fatigue during long gaming sessions, allowing you to play for hours without discomfort. With adjustable DPI settings, the Fantech Cruiser lets you customize the sensitivity to suit your gaming style. Switch between different DPI levels for fast-paced action or precise targeting, ensuring optimal performance. The Fantech WG11 Cruiser Wireless Gaming Mouse is equipped with durable, responsive buttons. Each click is registered accurately, giving you a competitive edge during intense battles or fast-paced gameplay. Thanks to its energy-efficient design, the Fantech Cruiser boasts a long-lasting battery life. You can enjoy extended gaming sessions without constantly recharging, ensuring uninterrupted play. In addition to its sleek design, the Fantech Cruiser features vibrant LED lighting. This adds a stylish touch to your gaming setup, making the mouse visually appealing as well as functional. In conclusion, the Fantech WG11 Cruiser Wireless Gaming Mouse combines precision, comfort, and wireless convenience for an unbeatable gaming experience. Upgrade your gear today and game with confidence. Specifications: Connectivity : 2.4 GHz DPI : 2000DPI Sensor : AVAGO Optical Sensor Buttons : 6 Buttons Polling Rate : 250Hz Battery : 400MAh
The Brother ADS‑4900W Professional Desktop Document Scanner delivers fast, reliable, and high-quality scanning for home offices, small businesses, and corporate environments. Designed for efficiency, it captures clear and accurate digital copies of documents, receipts, contracts, and photos with ease. Moreover, its compact desktop design fits neatly on any workspace without taking up too much room. This scanner supports high-speed duplex scanning, allowing you to scan both sides of a document in a single pass, saving time and effort. Additionally, it connects via Wi-Fi, USB, or network, enabling flexible and convenient scanning from PCs, laptops, or mobile devices. Its advanced features include automatic document feeder, image enhancement, and multiple file format support for PDFs, JPEGs, and more. The ADS‑4900W is ideal for professionals who require fast, efficient, and reliable scanning for high-volume workflows. Furthermore, it helps organize and digitize documents seamlessly, reducing clutter and improving productivity. Therefore, it is perfect for offices, schools, and businesses that need versatile and dependable scanning. Finally, this desktop scanner combines speed, quality, and convenience for professional document management. Specifications: High-speed, single-pass duplex scanning Clear and accurate digital copies of documents and photos Multiple file format support: PDF, JPEG, and more Flexible connectivity: Wi-Fi, USB, and network Automatic document feeder for efficient batch scanning
Label Printer Epson ColorWorks C7500 C31CD84012
Specifications : Plug Type EU, UK, US Standards IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Interface 1 * 10/100Mbps LAN Port 1 * 10/100Mbps LAN/WAN Port Button WPS Button, Reset Button Antenna 4 * external Dimensions ( W x D x H ) 95.0 x 61.5 x 35.2mm WIRELESS FEATURES Frequency 2.4~2.4835GHz Signal Rate Up to 300Mbps (dynamic) Reception Sensitivity 270M: -69dBm@10% PER Transmit Power < 20 dBm (EIRP) Wireless Modes Repeater/WISP/Router/AP Wireless Security 64/128/152-bit WEP WPA-PSK / WPA2-PSK OTHERS Package Contents 1xWireless-N Repeater/Router/AP 1xRJ-45 Ethernet Cable 1xQuick Installation Guide Environment Operating Temperature: 0°C~40°C (32°F~104°F) Storage Temperature: -40°C~70°C (-40°F~158°F) Operating Humidity: 10%~90% non-condensing Storage Humidity: 5%~90% non-condensing manufacturer link
The MSI MAG 275UPD E14 27-inch gaming monitor is built for competitive and immersive gameplay, offering both ultra-sharp visuals and extremely high refresh rates. Its IPS panel delivers vibrant colors and wide viewing angles, making it suitable for gaming, content creation, and everyday use. Moreover, the monitor supports dual display modes, allowing users to switch between ultra-detailed 4K resolution and ultra-fast Full HD performance. This flexibility allows gamers to enjoy crisp visuals for cinematic games or switch to very high refresh rates for competitive titles that require maximum smoothness and responsiveness. Additionally, fast response times help reduce motion blur and ghosting, ensuring smoother gameplay during fast-moving scenes. The MAG 275UPD E14 also features modern connectivity options and an ergonomic design that fits gaming or professional setups. Furthermore, its slim bezels enhance immersion in multi-monitor setups. Therefore, this monitor suits users who want both high resolution and esports-level speed. Finally, it combines versatility, speed, and image quality in one powerful gaming display. Specifications: Screen size: 27-inch IPS panel Resolution modes: 4K UHD (3840×2160) or Full HD (1920×1080) Refresh rate: 144Hz at 4K / up to 288Hz at FHD Response time: 1ms class gaming response time Connectivity: HDMI and DisplayPort inputs for PC and consoles
The Logitech G502 X Lightspeed Wireless Gaming Mouse is a high-performance gaming mouse designed for speed, precision, and responsiveness. It uses LIGHTSPEED wireless technology for a fast and stable connection. Additionally, it features a lightweight redesign for better control during long gaming sessions. Moreover, it includes a HERO 25K optical sensor that delivers up to 25,600 DPI for accurate tracking. This ensures smooth and precise movement across different play styles. Furthermore, it uses LIGHTFORCE hybrid optical-mechanical switches. These switches combine fast optical actuation with tactile mechanical feedback for reliable clicks. It also supports multiple programmable buttons and a redesigned scroll wheel for flexible control in games. The battery provides long wireless usage time for extended sessions. Overall, the Logitech G502 X Lightspeed Wireless Gaming Mouse delivers fast wireless performance, high precision tracking, and advanced customization for competitive gaming. Specifications: LIGHTSPEED wireless with ultra-low latency connection HERO 25K sensor with up to 25,600 DPI accuracy LIGHTFORCE hybrid optical-mechanical switches 13 programmable buttons for customization Lightweight redesigned body for improved control
The AOC 27″ 180Hz Gaming Monitor is designed for serious gamers seeking top-tier performance. Its ultra-fast 180Hz refresh rate ensures smooth and fluid visuals, reducing motion blur for a more immersive gaming experience. Firstly with a 27-inch screen, this gaming monitor offers ample space for your games, providing clear and detailed images. The large display enhances your field of view, making every gaming session more engaging and enjoyable. Furthermore the AOC 27″ 180Hz Gaming Monitor features a Full HD resolution, delivering crisp and sharp visuals. Whether you’re playing fast-paced shooters or exploring open-world adventures, every detail will be displayed with precision. Equipped with Adaptive-Sync technology, this monitor eliminates screen tearing and stuttering, ensuring seamless gameplay. You’ll enjoy a more responsive and visually stunning gaming experience, keeping you competitive in every match. The sleek and modern design of the AOC Gaming Monitor complements any gaming setup. Its slim bezels provide a more immersive viewing experience, allowing you to focus entirely on your game. Connectivity is made easy with multiple input options, including HDMI and DisplayPort. You can easily connect your gaming console, PC, or other devices for versatile use. In conclusion, the AOC 27″ 180Hz Gaming Monitor offers outstanding performance, stunning visuals, and a sleek design. Upgrade your gaming setup with this high-performance monitor and experience games like never before. Specifications: Display : 27″ VA Resolution : 1920×1080 FHD Refresh Rate : 180Hz Response Rate : 1ms
