MLT-D111S MLT-D111L Toner Cartridge Replacement for Samsung 111S MLTD111L for Xpress SL-M2020W SL-M2070FW SL-M2070W M2020 M2024W M2026W M2070 Laser Printer (Black, 1-Pack)
13" Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5 13″ Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5
Arabic Language Silicone Keyboard Cover Skin for MacBook Air 13" Macbook Pro with / without Retina Display 13"15" 17" MC184LL/B, NOT COMPATIBLE WITH NEW MacBook Air 13” A1932 (Black) Arabic Language Silicone Keyboard Cover Skin for MacBook Air 13″ Macbook Pro with / without Retina Display 13″15″ 17″ MC184LL/B, NOT COMPATIBLE WITH NEW MacBook Air 13” A1932 (Black) About this item Only compatible with MacBook Air 13″ (Model: A1369 & A1466) , MacBook Pro 13-Inch with DVD Drive (Model: A1278), Pro 13 inch with Retina Display (Model: A1425 & A1502), Pro 15 inch with DVD Drive (Model: A1286), Pro 15 inch with Retina Display (Model: A1398), Pro 17 inch (Model: A1297) and Apple Wireless Bluetooth Keyboard MC184LL/B (A1314). NOT COMPATIBLE WITH NEWEST MacBook Air 13″ 2018 (Model: A1932) Fit for American Version( “Enter” key is a rectangle), DO NOT FIT FOR Europe Version (“Enter” key looks like “7”) Extra slim silicone skin, made it easier for typing. Soft silicone can ELIMINATE THE SOUND when typing FLEXIBLE, WASHABLE, easy to apply and remove for cleaning or disinfecting. Manufactured to the highest quality available, Ultra thin design lets you open and close your computer without any affection
New CM03XL CM03 Laptop Battery for HP Elitebook 740 G2, 745 G2, 750 G2, 755 G2, 840 G1, 840 G2, 845 G2, 850 G1, 850 G2, 855 G2, Zbook 14 G2 About this item 6-cell, Li-ion battery, rated at 4000mAh / 44Wh and 11.1v Replacement HP 717376-001, CM03050XL-PL, E7U24UT, E7U24AA, CM03XL, CM03, 716724-421 Fits HP Elitebook 740 G2, 745 G2, 750 G2, 755 G2, 850 G2, 755 G2. HP EliteBook Folio 9480m. HP Zbook 14. HP Elitebook 850 G1, 1040 G1 Note: As this replacement battery can fit many models and part numbers, the factory can not mark all the compatible part numbers on it, please understand. If you have any problems, please contact us by message, and we will help you deal with them promptly.
The Apple Magic Mouse (USB-C version) is a sleek, minimalist multi-touch wireless mouse built for Mac users. It offers smooth gesture support, Bluetooth connectivity and a built-in rechargeable battery — a great choice if you prefer a clean desk setup and full compatibility with macOS and iPadOS. General Name: Magic Mouse (USB-C) — part of Apple’s pointing-device lineup. Wireless connectivity: Bluetooth. Rechargeable battery: built-in, no disposable AA cells. Charging / port: USB-C port (bottom of mouse) for pairing and charging. Compatibility: Requires a Mac with macOS 15.1 or later, or an iPad with iPadOS 18.1 or later. Size & Weight Height: ~0.85 inch (2.16 cm) Width: ~2.25 inch (5.71 cm) Depth: ~4.47 inch (11.35 cm) Weight: ~0.22 pound (0.099 kg) (varies slightly by manufacturing) Features Multi-Touch surface: supports gestures such as swiping between pages, scrolling through documents, zooming. Glide / foot design: optimized for smooth movement across desktop surfaces. Rechargeable battery life: about a month or more between charges (typical use) per Apple spec. Used Condition ConsiderationsSince you’re specifying a used unit: Check for wear on the bottom feet / skates — these degrade and affect glide. Verify battery capacity / health (rechargeable batteries age). Confirm the port is functioning (USB-C) and Bluetooth connectivity is stable. Look for signs of excessive surface scratches on the multi-touch top — may impair gestures. Ensure the firmware / Mac recognizes it fully (gestures working). Upgradability / Limitations Not user-upgradable: You cannot replace the internal battery or change internals easily. Design limitation: The USB-C port remains on the bottom of the mouse, meaning you cannot use it while charging unless you flip it. This design is still criticized. Ergonomics: The flat, low-profile design is stylish but may not suit extended-use comfort for some users.
The MOXOM MX-PB168 is a true high-capacity 40000mAh external battery pack designed to provide reliable, multi-day charging for all your devices. Featuring an advanced multi-protocol fast setup with dual built-in cables, a clear LCD digital battery indicator, and a high-intensity integrated flashlight, it is the ultimate heavy-duty solution for outdoor adventures, travel, or emergency home backups. ✅ Full Specifications: Model: MOXOM Ultra-Large Capacity Power Bank (MX-PB168) Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Capacity / Battery Variant: 40000mAh (High-density Li-Polymer cells) Material & Build: Fire-retardant, heavy-duty ABS + Polycarbonate matte black casing built to resist everyday scuffs and impacts. Design & Form Factor: Ergonomic block form factor equipped with an integrated high-tensile hanging rope/strap for easier carrying. Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Display: Full front-facing premium LCD digital display showing real-time battery charge percentages and fast-charging status triggers. Compatibility: Universally compatible with Apple iPhones, iPads, Samsung Galaxy series, Huawei, Xiaomi, Oppo, tablets, smartwatches, and low-current wireless earphones. Color: Matte Black
Arabic Keyboard Cover Skin for MacBook Air 13'' (A1369/A1466, NO Touch ID) 2012 -2017 /MacBook Pro 13" 15'' 2013-2015 with or w/out Retina Display Ultra Thin Silicone Keyboard Protector (Black) Arabic Keyboard Cover Skin for MacBook Air 13” (A1369/A1466, NO Touch ID) 2012 -2017 /MacBook Pro 13″ 15” 2013-2015 with or w/out Retina Display Ultra Thin Silicone Keyboard Protector (Black) About this item COMPATIBLE WITH: 2015 and before 2015 version Macbook: 1) MacBook Air 13″ (Models: A1369 and A1466); 2) MacBook Pro 13.3″ (Model: A1278); 3) MacBook Pro 13.3″ with Retina Display (Models: A1502 and A1425, 2013-2012 released); 4) MacBook Pro 15″ with Retina Display (Model: A1398, 2013-2012 released); 5) MacBook Pro 15.4″ Model: A1286 [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning [√] SOFT & ULTRA SKIN: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing [XX] ATTENTION!!: NOT FIT FOR: 2020-2016 Released Macbook Pro 13 inch 15 inch with Touch Bar/2020-2018 Released: Macbook Air 13-Inch. You can find the model number on the bottom of the laptop
Features Stylish and compact Bluetooth speaker, easy to carry. Supports wireless connectivity via Bluetooth. True Wireless Stereo (TWS): Connect two speakers simultaneously. Durable ABS plastic material with a fabric-covered front panel. Built-in microphone for hands-free calls. LED indicator to display working status. Water-resistant with an IPX7 rating. Continuous playback for 8-12 hours (depending on volume). 5-watt speaker delivering Hi-Fi audio quality. On-speaker controls for music playback and volume adjustment. Built-in battery with Type-C charging port for easy recharging. Technical Specifications Bluetooth Version: V5.4 Transmission Distance: 10 meters Rated Power: 5W Driver Unit: 40mm Input: DC5V Battery Capacity: 1200mAh Charging Time: 2 hours Playback Time: 8-12 hours (depending on volume)
Original MacBook Pro 13″ (A2338) Display Assembly in Silver, including LCD, Retina panel, backlight, camera, Wi-Fi antennas, hinges, and aluminum lid. Compatible with M1 MacBook Pro 13″ (2020). Ideal for replacing cracked, damaged, or faulty screens. ✔️ Complete Display Assembly: Includes LCD, digitizer, housing, hinges, webcam, and antenna modules. ✔️ Retina Resolution: 2560 × 1600 native resolution with True Tone support. ✔️ Genuine Fit for A2338: Designed specifically for the MacBook Pro 13″ (A2338) – M1 2020 model. ✔️ Accurate Color & Brightness: 500 nits brightness, P3 wide color gamut, and high contrast. ✔️ Silver Aluminum Finish: OEM-grade aluminum lid matching the original color and texture. ✔️ Plug-and-Play Replacement: No programming required — direct connector compatibility. ✔️ Ideal for Repair: Suitable for replacing damaged, flickering, bleeding, or cracked screens.
Dominate the battlefield with the Genius Scorpion M705, featuring a high-precision 7200 DPI sensor and striking 7-color breathing RGB lighting. Built with a durable braided cable and 6 programmable buttons, it’s the ultimate entry-level weapon for gamers seeking speed, style, and reliability. The Genius Scorpion M705 is designed to provide gamers with a competitive edge without compromising on comfort. Equipped with an optical sensor that reaches up to 7200 DPI, it ensures smooth and accurate tracking across various surfaces. Its ergonomic right-handed shape and lightweight build reduce wrist strain during marathon sessions, while the integrated 32K memory allows you to take your custom macros and profiles wherever you go. Adjustable 7200 DPI Sensor: Seamlessly switch between six sensitivity levels (800/1600/2400/3200/4800/7200 DPI) to match your game’s pace, from high-speed movement to pixel-perfect sniping. Dynamic RGB Breathing Effects: Enhance your gaming atmosphere with 7 dazzling LED colors that pulse with a “breathing” effect. You can easily adjust the lighting mode using the DPI + Forward/Backward shortcuts. 6 Programmable Buttons: Fully customize your controls. Assign macros, shortcut keys, or specific in-game commands to the 6 buttons to execute complex actions with a single click. Built-in 32K Memory: Save your settings directly on the mouse. Your custom profiles and button assignments stay with you, even when switching to a different PC. Professional Durability: Features a 1.8-meter braided USB cable that prevents tangling and increases the lifespan of the device, ensuring a stable, low-latency connection. Sensor Type: Optical Resolution: 800 – 7,200 DPI Number of Buttons: 6 (Programmable) Illumination: 7-Color RGB Breathing LED Interface: USB Wired Cable: 1.8m Braided Cable Internal Memory: 32K Dimensions: 120.2 x 72.7 x 39.6 mm Weight: Approx. 120g (including cable) Compatibility: Windows 8, 10, 11 or later What’s in the Box Compatibility: Windows 8, 10, 11 or later What’s in the Box Genius Scorpion M705 Gaming Mouse Multi-language Quick Guide
Gain the competitive advantage with the Bloody ES7, featuring a high-performance 6000 CPI PixArt Optical Engine. With ultra-fast 1ms click response and customizable 16.8 million color RGB lighting, this mouse is built for gamers who demand precision, speed, and comfort in every match. The A4Tech Bloody ES7 is a professional-grade esports tool designed to translate every hand movement into on-screen action with 1:1 tracking accuracy. Driven by the reliable PixArt Optical Engine, it eliminates “angle snapping” and artificial corrections, ensuring your aim remains raw and precise. Its ergonomic symmetrical shape supports various grip styles, while the anti-sweat matte finish ensures you stay in control even during the most intense gaming sessions. PixArt Optical Engine (6000 CPI): High-precision tracking with 5-level adjustable sensitivity (1000/1200/1600/2000/6000 CPI). Fine-tune your control via software to suit any game genre. Lightning-Fast 1ms Response: Equipped with ahead-of-the-curve technology, the ES7 reacts instantly to your clicks, providing the low-latency performance required for competitive play. Vibrant RGB Lighting: Immerse yourself in your gaming setup with 16.8 million customizable RGB colors and dynamic lighting effects. Customizable “M” Button: The dedicated M button can be programmed via software to execute complex macros or combined functions, putting more power at your fingertips. Extreme Durability: Built to last, the primary buttons are rated for over 10 million clicks, and the high-quality scroll wheel is tested for over 500,000 scrolls. Braided 1.8m Cable: The robust, tangle-free braided cable ensures a stable connection and long-term durability against wear and tear. Sensor: PixArt Optical Engine Resolution: 100 – 6,000 CPI Report Rate: 125 – 1,000 Hz (Adjustable) Key Response: 1 ms Acceleration: 15 g Tracking Speed: 45 ips Frame Speed: 6,000 fps Buttons: 7 Buttons Memory: 256K Onboard Memory Interface: USB Wired (1.8m Cable) System Requirements: Windows 7/8/8.1/10/11 or later Bloody ES7 Esports Gaming Mouse Quick Start Guide
The NCTS HDMI 2.0 cable (3 meters) delivers high-speed and reliable audio/video transmission with support for 4K UHD resolution. Perfect for TVs, monitors, gaming consoles, and home theater systems, it provides a stable connection and clear visuals for everyday and entertainment use. The NCTS HDMI 2.0 Cable 3M is a dependable solution for connecting devices such as laptops, PCs, gaming consoles, and media players to TVs, monitors, and projectors. Supporting 4K UHD video, this cable ensures sharp image quality and smooth performance for movies, gaming, and presentations. Its 3-meter length offers flexible setup options, making it ideal for home, office, and entertainment environments. HDMI 2.0 Standard for high-quality video and audio Supports 4K UHD Resolution for sharp and detailed visuals High-Speed Performance for smooth playback and stable signal 3M Length perfect for flexible positioning and setups Compatible with TVs, Monitors, and Projectors Ideal for PS4 / Xbox / TV Boxes / PCs Durable Build Quality designed for long-term use Plug & Play no setup required Works with all HDMI-enabled devices, including TVs, monitors, projectors, PlayStation, Xbox, laptops, PCs, receivers, and streaming devices. Ideal for users who need a longer cable for home theater setups, gaming stations, or office installations.
WiWU A821CH 8‑in‑1 Stand & Dock – A foldable aluminum laptop stand with a built-in 8‑port USB‑C dock (two USB‑A, two USB‑C, HDMI 4K30, SD/TF, Gigabit Ethernet, PD 100 W).Enhances comfort, cooling, and functionality—perfect for decluttered, professional work setups. Model: WiWU A821CH Design: Sturdy aluminum alloy stand with foldable, portable design, hollow surface for cooling, and silicone pads to prevent slips Dimensions & Weight: Compact when folded (~400 g in aluminum) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Power Delivery: USB-C PD 3.0 supports up to 100 W—can charge a laptop while using other ports Connectivity: HDMI supports up to 4K@30 Hz; Ethernet up to Gigabit speed Stand Features: Detachable base—can use stand and hub together or separately, with adjustable ergonomic angles and vents for airflow Durability: Aluminum alloy with frosted texture, scratch-resistant finish, tested to executive standards
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1707, 2016–2017)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only.
Lenovo Battery L15L4A01 Battery for Lenovo V4400 Ideapad 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBY 300-15IBR 300-15IBY 300-15IBY 300-15ISK 300-17ISK 80Q70021US 80UD Lenovo Battery L15L4A01 Battery for Lenovo V4400 Ideapad 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBY 300-15IBR 300-15IBY 300-15IBY 300-15ISK 300-17ISK 80Q70021US 80UD[14.8V 33Wh] About this item Battery type: Li-ion, voltage: 14.4 V, capacity: 32 Wh, color: black Compatible Part Number:5B10H70338 5B10H70339 5B10H70340 5B10H70341 5B10H71978 5B10H71979 5B10K02215 5B10K02218 5B10 KK0221 9 5B10K80878 5B10L04213 5B10L12769 5B10L12770 5B10L12771 5B10L30040 5B10L30041 L15L4A01 L15L4E. 01 L1 L5M4A01 L15M4E01 L15S4A01 L15S4E01 Fits Model: Lenovo Ideapad 110-15ISK Series Tablet 80UD 80UD001TUS; 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBR 300-15IBR 300-15 IBY 300 -15IBR 300-15IBY 300-15IBY 300-15ISK 300 -17ISK 80RJ 80RK 80MJ 80QQ 80UD 80NL 80M3 80Q7 80QH New from manufacturer. CE/FCC/RoHS certified for safety.
REMAX RB-950HB Binzchi Series ANC Bluetooth Wireless Headphone – Black Description Advanced Active Noise Cancellation (ANC). 8.0 CVC technology for enhanced audio clarity. Patented ergonomic design. Premium ADi noise reduction chip. Large 40mm diaphragm for rich audio. 6-microphone array for crystal-clear calls. Smart infrared wear detection. Specification Color: Black, Blue, White Rated Power: 10mW Driver Unit: 40mm Driver Impedance: 32 ohm Frequency Response: 20Hz~ 20kHz Wireless Connectivity: Bluetooth® 5.3 Bluetooth Range: 10M Compatible with: iOS / Android Integrated Controls: Volume Up/Down, Play/Pause Microphone: Yes Battery Capacity: 600mAh Playing Time: 30 hrs Charging Time: 2-2.5 hrs Standby time: 40 hrs
A1990 Logic Board i7-16GB-512GB-4GB Intel 2.6 GHz Six Core i7 (I7-9750H) 16 GB RAM 512 GB SSD AMD Radeon Pro 555X 4GB Intel UHD Graphics 630 Intel 2.6 GHz Six Core i7 (I7-9750H) 16 GB RAM 512 GB SSD AMD Radeon Pro 555X 4GB Intel UHD Graphics 630
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.
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.