CS03XL Battery for HP Elitebook 745 755 840 848 850 G3 G4, ZBook 15u G3 G4 Laptop, P/N: HSTNN-UB6S HSTNN-IB6Y 800231-141 800513-001 800231-1C1 CS03046XL About this item Battery type: Li-ion ‖ Capacity: 46Wh ‖ Voltage: 11.4V Replacement Battery for HP Elitebook 745 G4 G3, Elitebook 755 G4 G3, Elitebook 840 G4 G3, Elitebook 848 G4 G3, Elitebook 850 G4 G3, ZBook 15u G4 G3 Mobile Workstation. Compatible P/N: 800231-141, 800513-001, CS03XL, CS03, HSTNN-UB6S, HSTNN-IB6Y, HSTNN-I33C-4, HSTNN-I33C-5, HSTNN-I41C-4, HSTNN-I41C-5. Built-in circuit protection ensures both safety and stability. Overcharger and Discharger Circuit Protection.
Professional Grade K9 Dual Wireless Lavalier Mic For Android Smartphones Type C K9 Wireless Collar Microphone For YouTube Voice Recording Live Videos Vlog ASMR Podcast & Interview Expert Features 【Wireless Lavalier Microphone (2 Pcs) 】: Ideal for USB-C, iPhone, Smartphones, iPads and Macs with USB-C ports, Android devices, and laptops with USportsPort | Auto Noise Reduction. 【Dual Microphone Set】:Includes two wireless Lavalier microphones for versatile audio recording options. Simply plug the microphone into the USB port for instant connectivity and ease of use. 【Wide Compatibility】:Ideal for use with USB-C devices, iPhones, smartphones, iPads, Macs, Android devices, and laptops with USB-C ports, ensuring compatibility across various platforms. 【Auto Noise Reduction】: Features built-in noise reduction technology to minimize background noise and ensure clear and crisp audio. 【Long Battery Life】:Powered by lithium-ion batteries, providing reliable performance for extended recording sessions. 【Versatile Applications】:Suitable for a wide range of applications, including vlogging, interviews, presentations, podcasting, and more.
256GB SSD Apple Macbook Pro Air 2013 2014 2015 A1502 A1398 A1466 A1465 | Samsung MZ-JPU512T/A06 | 655-1805D ORIGINAL APPLE PART (Apple sources their SSD’s for MacBooks from Samsung) A1502 – A1398 – A1465 – A1466 100% TESTED WORKING Please check compatibility below before you make your purchase: COMPATIBILITY: MacBook Pro Retina Late 2013 – Mid-2015 MacBookPro11,1 (A1502) – ME864LL/A, ME866LL/A, ME867LL/A, MGX72LL/A, MGX92LL/A, & MGXD2LL/A MacBookPro11,2 (A1398) – ME293LL/A & MGXA2LL/A MacBookPro11,3 (A1398) – ME294LL/A, ME874LL/A, MGXC2LL/A, & MGXG2LL/A MacBookPro11,4 (A1398) – MJLQ2LL/A MacBookPro11,5 (A1398) – MJLT2LL/A & MJLU2LL/A MacBookPro12,1 (A1502) – MF839LL/A, MF841LL/A, & MF843LL/A MacBook Air Mid-2013 – Late 2015 MacBookAir6,1 (A1465) – MD711LL/A, MD760LL/A, MD711LL/B, & MF067LL/A MacBookAir6,2 (A1466) – MD760LL/A, MD760LL/B, & MF068LL/A MacBookAir7,1 (A1465) – MJMVM2LL/A MacBookAir7,2 (A1466) – MJVE2LL/A Model Identifier: Samsung Manufacturer Part# MZ-JPU512T/A06
TP-Link 8 Port Gigabit Ethernet Network Switch | Plug and Play | Desktop or Wall-Mount | Plastic Case Ethernet Splitter | Fanless | Traffic Optimization | Unmanaged (TL-SG1008D),Black About this item PLUG-AND-PLAY – Easy setup with no configuration or no software needed ETHERNET SPLITTER – Connectivity to your router or modem router for additional wired connections (laptop, gaming console, printer, etc) 8 Ports GIGABIT ETHERNET – 8 10/100/1000 Mbps Gigabit auto-negotiation RJ45 ports greatly expand network capacity COST EFFECTIVE – Fanless Quiet Design, Desktop design RELIABLE – IEEE 802.3x flow control provides reliable data transfer UP to 80% Power Saving – Automatically adjusts power consumption according to the link status and cable length AUTO-NEGOTIATION – Supports Auto-MDI/MDIX, eliminating the need for crossover cables
VSTAR UA80 800VA UPS | Compact Power Backup | 230V Output | Battery Included | For PCs, Routers, POS & More | Universal Outlet Design | Available in Black | Model UPS-U80 Reliable 800VA Power CapacityThe VSTAR UA80 delivers dependable 800VA of backup power—ideal for protecting home or office equipment from sudden power loss and voltage fluctuations. Compact & Efficient DesignSleek and space-saving, this unit fits easily into tight workspaces or under desks without sacrificing performance. Universal Output SocketEquipped with universal-style outlets, allowing compatibility with a wide variety of plugs and devices including PCs, routers, POS systems, and more. Steady 230V OutputProvides consistent 230V output, helping to keep electronics safe during sags, surges, and outages. Easy OperationPlug-and-play functionality with intuitive indicators for power status and battery mode—no complicated setup required. Backup Battery IncludedShips ready to use with internal battery installed. Offers enough runtime to safely power down or continue short-term tasks during outages. Ideal for Light LoadsPerfect for use with routers, modems, home surveillance systems, basic desktops, and point-of-sale devices. Durable Plastic EnclosureBuilt with sturdy, insulated plastic to ensure safety, lightweight portability, and long-term durability. Trusted VSTAR QualityBacked by VSTAR’s reputation for reliability in affordable UPS power protection.
Laptop Battery for Acer AS10D31 AS10D51 Aspir 4741 5253 5251 5336 5349 5551 5552 5560 5733 5733Z TravelMate 5740 5735 5735Z 5740G Gateway NV55C NV50A NV53A NV59C Laptop Battery for Acer AS10D31 AS10D51 Aspir 4741 5253 5251 5336 5349 5551 5552 5560 5733 5733Z TravelMate 5740 5735 5735Z 5740G Gateway NV55C NV50A NV53A NV59C [6 Cells/58WH] About this item Battery type: Li-ion; Cells: 6-cell; Capacity:5200mAh / 58Wh; Voltage: 11.1V Made of High-Quality Materials, Grade A Battery cells and Packed with Safety Features. Compatible part number:31CR19/65-2 / 31CR19/66-2 / 3ICR19/66-3 / 31CR19/65-2 / AS10D31 / AS10D3E / AS10D41 / AS10D51 / AS10D61 / AS10D71 / AS10D75 / AS10G3E / AS10D / BT.00603.111 / BT.00606.008 / BT.00607.125 / BT.00607.127 / AK.006BT.075 / AS10D73 / BT.00603.117 / BT.00605.062 / BT. 00607.130 / AK.006BT.080 / AS10D75 / BT.00603.124 / LC.BTP00.123 / BT.00604.049 / BT.00605.065 / BT.00607.126 Compatible Models 1:Acer Aspire 4250 4253 4339 4349 4551 4551G 4738 4738Z 4739 4739Z 4743 4743Z 4741 4750 4750G 4755 4755G 4752 4752G 4752Z 4771 5251 5252 5253 5336 5349 5551 5551G 5552G 5560 5560G 5733 5741 5741G 5741Z 5742 5742G 5742Z 5742ZG 5750 5750G 5750Z 5750ZG 5755 5755G 5736 5736Z 7741G 7741Z-5731 7741Z-4643 7551G 7552G 7750Z Compatible Models 2:Acer TravelMate 4740 4750 5335 5542 5542G 5735 5735Z 5740 5740G 5740Z 5742 5742G 5742Z 5742ZG 5744 5760 6495T 7740 7740G 7750 7750G 7750Z 8472 8473 8573 TM5742;Gateway NV57H NV55S NV50A NE56R NV51B NV75S NV77H NE51B NV76R NV52L NV73A NV79C NV56R NV49C.
The 60W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. The 60W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. Compatible with MacBook Pro with 13-inch Retina display. See this article for more details about choosing the right one. Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info…” button. Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. COMPATIBILITY Mac Models: MacBook Pro (Retina, 13-inch, Late 2012 – 2015)
Genuine-spec UK layout keyboard replacement for MacBook Air 13″ (Model A2337, 2020)—featuring Apple’s Magic Keyboard with scissor-switch mechanism, backlighting, and full OEM compatibility for reliable, authentic typing experience. Compatible With: MacBook Air 13-inch (2020, Model A2337) – includes both Intel (Core i3/i5/i7) and Apple M1 chip variants. Layout: UK English (QWERTY) with £ symbol, taller vertical Enter key, and standard UK key labeling—matches Apple’s original regional configuration. Keyboard Type: Apple’s Magic Keyboard with scissor-switch mechanism—offering improved durability, quieter keystrokes, and 1mm key travel compared to older Butterfly designs. Integrated Features: Backlit keys for low-light environments, ambient light sensor support, and original-style ribbon cable connector for direct logic board connection. Build & Fit: Precision-engineered to align perfectly within the MacBook Air’s top case—ensures flush mounting and consistent key feel. Installation Note: The keyboard is factory-glued into the top case and requires full disassembly for replacement. Re-adhesion must be done carefully with proper adhesive. Recommended for experienced repair technicians.
PCE M8-700 UPS (line-interactive) — 700 VA / 360 W backup unit for 220–240 V input. Protects PCs, routers, small electronics from outages and voltage swings. The PCE M8-700 is a line-interactive UPS designed for home or small office use. It provides backup power, voltage regulation (AVR), surge protection, and supports automatic switching during outages. Ideal for desktop PCs, network gear, monitors, or point-of-sale systems. Features & Capabilities Line-interactive topology: regulates input voltage without switching to battery when voltage fluctuates mildly. Automatic Voltage Regulation (AVR) to correct undervolt/overvolt conditions. Simulated (stepped) sine wave output in battery mode. Surge, overload, short circuit, discharge protections built in. Cold start capability (ability to power on from battery with no mains) LED + audible alarms for status (battery mode, overload, fault) USB / RS232 interface in some variants for power management (shutdown, monitoring) Technical Specifications What “Input 220–240 VAC, 50/60 Hz, 3.7 A” Means (and Caveats) If the specification you’re giving is “3.7 A” at input, that corresponds to a maximum input current draw when the UPS is handling a heavy load or during charging cycles. At 230 V × 3.7 A ≈ 850 W of input capacity. The unit’s 360 W output means there’s overhead for losses, inverter inefficiency, battery charging, etc. The UPS must operate within the stated voltage and frequency ranges — if input is too low or too high, it may switch to battery or go into protection mode.
The HyperX Pulsefire Haste 2 Core Wireless is an ultra-lightweight, high-performance gaming mouse designed for speed, precision, and long-lasting comfort. Featuring dual-mode wireless connectivity and an operating weight of just 70 grams, it delivers low-latency competitive gaming powered by a single AAA battery. ✅ Full Specifications: Model: HyperX Pulsefire Haste 2 Core Wireless (White Edition / 8R2E7AA) Interface / Connection: Dual Wireless Connection Modes: High-speed 2.4GHz Wireless (via included USB-A nano receiver) Bluetooth 5.2 (Power-efficient mode for casual use and multi-device pairing) Interface / Connection: Dual Wireless Connection Modes: High-speed 2.4GHz Wireless (via included USB-A nano receiver) Bluetooth 5.2 (Power-efficient mode for casual use and multi-device pairing) Performance & Sensor: Sensor Type: HyperX Custom Core Optical Sensor Max Resolution: Up to 12,000 DPI DPI Presets: 400 / 800 / 1600 / 3200 DPI Tracking Speed: 300 IPS Acceleration: 35G Polling Rate: Up to 1,000Hz (1ms response time) Performance & Sensor: Sensor Type: HyperX Custom Core Optical Sensor Max Resolution: Up to 12,000 DPI DPI Presets: 400 / 800 / 1600 / 3200 DPI Tracking Speed: 300 IPS Acceleration: 35G Polling Rate: Up to 1,000Hz (1ms response time) Switches & Durability: Main Left/Right Switches: Tactile TTC Gold Switches Switch Lifespan: Rated for up to 20 million clicks Total Buttons: 6 programmable buttons (including 2 thumb side buttons) Switches & Durability: Main Left/Right Switches: Tactile TTC Gold Switches Switch Lifespan: Rated for up to 20 million clicks Total Buttons: 6 programmable buttons (including 2 thumb side buttons) Material & Build: Durable solid-upper shell with low-friction PTFE skates for seamless gliding across cloth mouse pads Design & Form Factor: Lightweight, symmetrical ergonomic frame suitable for various grip styles (palm, claw, fingertip) Lighting Effects: Customizable onboard LED RGB lighting Battery & Power: Battery Type: User-replaceable, 1x AAA Alkaline Battery Battery Life: Up to 100 hours (on 2.4GHz mode) or up to 200 hours (on Bluetooth mode) Battery & Power: Battery Type: User-replaceable, 1x AAA Alkaline Battery Battery Life: Up to 100 hours (on 2.4GHz mode) or up to 200 hours (on Bluetooth mode) Security & Software: Fully compatible with HyperX NGENUITY software for button remapping, macro recording, and custom RGB profile management Compatibility: PC, Xbox Series X|S, Xbox One, PlayStation 5 (PS5), PlayStation 4 (PS4), and Mac Dimensions: Approx. 124.3 x 66.8 x 38.2 mm Weight: Mouse Only: Approx. 60 grams Operating Weight (with AAA battery): Approx. 70 grams Weight: Mouse Only: Approx. 60 grams Operating Weight (with AAA battery): Approx. 70 grams
MacBook Pro A1706 / A1708 Display Assembly (Space Gray) Compatibility : MacBook Pro 2017 13″ A1708 (EMC 3164 MacBookPro14,1) 2.3 GHz A1708 (EMC 3164 MacBookPro14,1) 2.5 GHz A1706 (EMC 3163 MacBookPro14,2) 3.1 GHz A1706 (EMC 3163 MacBookPro14,2) 3.3 GHz A1706 (EMC 3163 MacBookPro14,2) 3.5 GHz MacBook Pro 2016 13″ A1706 (EMC 3071 MacBookPro13,2) 2.9 GHz A1706 (EMC 3071 MacBookPro13,2) 3.1 GHz A1706 (EMC 3071 MacBookPro13,2) 3.3 GHz A1708 (EMC 2978 MacBookPro13,1) 2.0 GHz A1708 (EMC 2978 MacBookPro13,1) 2.4 GHz
BATTERY ACER AS16A5K AS16A8K Battery for Acer Aspire E5-523 E5-553 E5-576 E5-774G N16Q2 E5-576G E5-575G E5-475 F5-573 E5-575-52JF E5-575-33BM E5-575G-76YK E5-575-54SM E5-575G-57D4 E5-576-392H E5-575-54E8 4ICR19/66 About this item 【Battery type】 Voltage:14.8V; Capacity: 2200mAh /33Wh Color:black 【Note】It is not compatible with E5-575G-53VG, E5-575G-549D,E5-575G-5341,E5-575G-33BM, E5-575G-51VI. Before placing an order, please ensure your old battery’s model is AS16A5K, KAS16A7K, and AS16A8K (14.8V 4-cell). Please do not order this battery if your old battery’s model is s AS16B5J or AS16B8J (10.95V /11.1V 6-cell). They can not replace each other 【Compatible 】Laptop Models for Acer Aspire E15 E5-475 E5-475G E5-523 E5-523G E5-553 E5-553G E5-575 E5-575G E5-575T E5-575TG E5-576 E5-576G E5-774 E5-774G F5-573 F5-573G F5-573T F5-771 F5-771G Series E5-575-52IF E5-575-53EJ E5-575G-59EE E5-575G-53VG E5-575G-57KJ E5-575-74RC E5-575-72N3 E5-575G-52RJ E576G-5762 E5-575G-53VG E5-575G-549D E5-575G-5341 E5-575G-33BM E5-575G-51VI E5-575G-59EE E5-575G-59GV E5-575G-765N E5-575G-76YK 【Compatible Part Number】AS16A5K AS16A7K AS16A8K 4ICR19/66 N16Q1 N16Q2 KT.00605.002 KT.00405.001 KT.00407.004 KT.0040G.007 【Security】All our products are Certified by CE, and FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.
Late 2019 Apple MacBook Pro with 2.4GHz Intel Core i9 (16 inch, 16GB, 1TB SSD) 4GB AMD Radeon Pro 5500M Space Gray
CI03 CI03XL Battery for HP ProBook 640 G2 645 G2 650 G2 655 G2, ProBook 640 G3 645 G3 650 G3 655 G3 Laptop, P/N: HSTNN-UB6Q HSTNN-LB6T HSTNN-PB6K 801554-001 About this item 【BATTERY SPECIFICATIONS】 Type: Li-ion ‖ Capacity: 48Wh ‖ Voltage: 11.4V ‖ Model: CI03XL 【COMPATIBLE LAPTOP MODEL】For ProBook 640 G2, ProBook 640 G3, ProBook 645 G2, ProBook 645 G3, ProBook 650 G2, ProBook 650 G3, ProBook 655 G2, ProBook 655 G3 Notebook. 【PART NUMBER】CI03, CI03XL, C103XL, CIO3XL, CI03048XL, CIO3, HSTNN-UB6Q, HSTNN-LB6T, HSTNN-PB6K, HSTNN-UB6Q, HSTNN-DB7N, HSTNN-I66C-4, HSTNN-I66C-5U, HSTNN-I66C-5H, HSTNN-I67C-4, HSTNN-I67C-5, 801517-221, 801517-222, 801517-231, 801517-232, 801517-241, 801517-242, 801517-421, 801517-422,801517-541, 801517-831, 801554-001. 【MULTIPLE PRETCTION】 Don’t fall into buying cheap and unsafe batteries. All our batteries are certified by CE, and FCC for safety. Bulit-in circuit protection ensures both safety and stability.
Genuine-spec Touch Bar assembly with integrated flex cable for MacBook Pro 15″ (Models A1706 – 2017 and A1989 – 2018)—fully restores dynamic Touch ID, system controls, and app-specific functions with OEM-level fit and reliability. Compatible With: MacBook Pro 15″ (2017) – Model A1706 (Intel Core i7/i9, 4 Thunderbolt 3 ports) MacBook Pro 15″ (2018) – Model A1989 (Intel Core i7/i9, 4 Thunderbolt 3 ports) MacBook Pro 15″ (2017) – Model A1706 (Intel Core i7/i9, 4 Thunderbolt 3 ports) MacBook Pro 15″ (2018) – Model A1989 (Intel Core i7/i9, 4 Thunderbolt 3 ports) Includes: Complete Touch Bar module with pre-attached flex cable, integrated Touch ID sensor (doubles as power button), and ambient light sensor—ready for direct connection to the logic board. Full Functionality: Restores all Touch Bar features including dynamic app controls, system brightness/volume sliders, Siri, and fingerprint authentication via Touch ID. Color Match: Available in Space Gray and Silver—select the finish that matches your MacBook’s top case. OEM-Quality Build: Matches Apple’s original dimensions, sensor alignment, and surface texture—ensures seamless integration with macOS and consistent responsiveness. Installation Note: Requires full top case disassembly. The flex cable routes under the left speaker and connects near the logic board—precision is critical to avoid damage. Recommended for experienced technicians.
Apple USB-C Charge Cable (1m) , With Apple Warranty This 1-metre charge cable is made with a woven design — with USB-C connectors on both ends — and is ideal for charging, syncing and transferring data between USB-C devices. Pair the USB-C Charge Cable with a compatible USB-C power adapter to conveniently charge your devices from a power point and take advantage of fast-charging capabilities. USB-C power adapters sold separately.
The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. Compatible with MacBook Pro with 13-inch Retina display. See this article for more details about choosing the right one. Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info…” button. Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. COMPATIBILITY Mac Models: MacBook Pro (Retina, 13-inch, Late 2012 – 2015)
Brand Crucial Computer Memory Size 8 GB RAM Memory Technology DDR4 Memory Speed 2666 MHz Compatible Devices Laptop, PC Improve your system's responsiveness, run apps faster and multitask with ease Install with ease; no computer skills required How-to guides available at Crucial Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8 Brand Crucial Computer Memory Size 8 GB RAM Memory Technology DDR4 Memory Speed 2666 MHz Compatible Devices Laptop, PC Improve your system’s responsiveness, run apps faster and multitask with ease Install with ease; no computer skills required How-to guides available at Crucial Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8
Kingston NV3 1TB NVMe SSD — ultra-fast PCIe 4.0 storage in a compact M.2 form.• Read up to 6,000 MB/s • Write up to 4,000 MB/s • 320 TBW enduranceForm Factor: M.2 2280 | Interface: PCIe 4.0 x4 | Warranty: 5-year limitedSKU: SNV3S/1000G Full Details: The Kingston NV3 PCIe 4.0 NVMe M.2 1TB SSD gives you ultra-fast performance and reliable storage for laptops and desktops. Built with PCIe 4.0 technology, it delivers read speeds up to 6,000 MB/s and write speeds up to 4,000 MB/s, making it perfect for gaming, content creation, or simply speeding up your system. PCIe 4.0 × 4 NVMe interface for lightning-fast speed Compact M.2 2280 design for easy installation Up to 6,000 MB/s read and 4,000 MB/s write speeds 1TB capacity for games, media, and apps Low power use and heat for better efficiency Works with most modern desktops and laptops that support M.2 NVMe (PCIe) drives. Backward compatible with PCIe 3.0 systems (at lower speeds). Kingston NV3 1TB M.2 NVMe SSD Quick start/warranty guide