MacBook Pro A2485 2021 – 16.2" XDR display, Apple M1 Pro (10-core CPU / 16-core GPU), 32 GB memory, 512 GB SSD.Top-tier creative laptop with blazing performance, superb display, and professional I/O – built for demanding workflows.
Genuine-spec US layout (QWERTY) black keyboard replacement for MacBook Air 13.6″ and 15″ models (2023–2025, M2/M3/M4 chips)—featuring Apple’s Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) Keyboard Layout: Standard US English (QWERTY) with wide Enter key, dedicated left/right arrow keys in inverted-T layout, and full function row—matches Apple’s original US configuration. Design: Apple’s Magic Keyboard with scissor-switch mechanism—providing quiet, stable, and responsive typing with 1mm key travel and enhanced durability. Features: Integrated backlighting for low-light use, ambient light sensor compatibility, and OEM-style flex cable for direct logic board connection. Color: Sleek black keycaps—ideal for Space Gray and Midnight finishes, and visually consistent across all color variants. Precision Fit: Engineered to exact Apple specifications for alignment, key spacing, and mounting—ensures seamless integration into the original top case. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful removal, and professional-grade re-adhesion. Recommended for experienced technicians only.
SB03XL Battery for HP Elitebook 720 725 G2 820 G1 G2 716726-421 717378-001 HSTNN-LB4T HSTNN-I13C About this item Compatible Computers: Hp EliteBook 820 G1, HP EliteBook 720 G1, HP EliteBook 720 G2, HP EliteBook 725 G1, HP EliteBook 725 G2 E7U25AA E7U25UT F6B38PA Replace Battery List: SB03XL SB03046XL HSTNN-LB4T HSTNN-I13C HSTNN-IB4T HSTNN-I13C 716726-421 716726-1C1 717378-001 Battery Life: Up to 500 recharge cycles over the life of the battery. 100% Brand New from Manufacturer. All products are Certified by CE, and FCC for safety. Strict guidelines for compatibility, and standards compliance for environmental safety.
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.
MacBook Pro A1708 Battery A1713 for MacBook Pro 13 Inch A1708 Late 2016 Mid 2017 (EMC 2978 3164), A2171 Laptop Replacement Battery for MacBook Pro 13 Inch A2159 (2019) A2289 (2020) A2338 (2020) 【Macbook pro 13 Inch battery A1713 & A2171 Battery Specification】– Voltage: 11.4V. Capacity: 54.5Wh / 4781mAh, Battery Type: Li-ion 【Newest 4.0 upgraded OEM Battery for Apple macbook pro】– Japan High Performance Electric Core. Cobalt Proportion: >98%. Upgrade chip. Up to 1500+ recharge cycles over the life of the battery. Overcharger and Discharger Circuit Protection, Ensure fast charges and low power consumption, UL-/CE-/FCC-/RoHS-Certified for safety 【Replacement Battery A1713 for A1708 Macbook pro 13 inch】– A1708 Macbook pro 13” Late 2016: MacBook Pro 13-Inch “Core i5” 2.0 & MacBook Pro 13-Inch “Core i7” 2.4 (MacBookPro13,1, EMC2978, MLL42xx/A, MLUQ2xx/A). — A1708 Macbook pro 13” Mid 2017: MacBook Pro 13-Inch “Core i5” 2.3 & MacBook Pro 13-Inch “Core i7” 2.5 (MacBookPro14,1, EMC3164, MPXQ2xx/A, MPXR2xx/A, MPXT2xx/A, MPXU2xx/A) 【Replacement Battery A2171 for A2159 & A2289 & A2338 Macbook pro 13 inch】– A2159 Macbook pro 13” 2019: MacBook Pro 13-Inch “Core i5” 1.4 Touch & “Core i7” 1.7 Touch (MacBookPro15,4, EMC3301, MUHN2xx/A, MUHP2xx/A, MUHQ2xx/A, MUHR2xx/A, MUHR2xx/B). — A2289 Year 2020: MacBook Pro 13-Inch “Core i5” 1.4 & “Core i7” 1.7 (MacBookPro16,3, EMC 3456, MXK32xx/A, MXK52xx/A, MXK62xx/A, MXK72xx/A). — A2338 Year 2020: MacBook Pro 13-Inch “M1” 8-Core 3.2 (MacBookPro17,1, EMC3578, MYDA2LL/A*)
Genuine-spec touchpad flex cable for Apple’s 12-inch MacBook (Model A1534, Early 2015 / Early 2016 / Mid 2017)—essential for restoring full Force Touch trackpad functionality, haptic feedback, and multi-touch gesture support. Compatible With: MacBook 12″ (Early 2015) – 1.1GHz Core M MacBook 12″ (Early 2016) – 1.1GHz/1.3GHz Core M MacBook 12″ (Mid 2017) – 1.2GHz/1.3GHz Core m3/i5/i7 All share Model Number A1534 and Model Identifier MacBook8,1 / MacBook9,1 / MacBook10,1 respectively. MacBook 12″ (Early 2015) – 1.1GHz Core M MacBook 12″ (Early 2016) – 1.1GHz/1.3GHz Core M MacBook 12″ (Mid 2017) – 1.2GHz/1.3GHz Core m3/i5/i7 All share Model Number A1534 and Model Identifier MacBook8,1 / MacBook9,1 / MacBook10,1 respectively. Part Type: Touchpad flex cable only—does not include the trackpad housing, Taptic Engine, or mounting brackets. This is the ribbon cable that connects the Force Touch trackpad to the logic board. Function: Critical for Force Touch functionality—transmits pressure-sensitive input, multi-touch gestures (e.g., pinch, swipe, Force Click), and haptic feedback signals to the Taptic Engine. OEM-Quality Construction: Precisely matches Apple’s original in length, connector pitch, shielding, and routing—ensures reliable signal integrity and compatibility with macOS. Common Use Cases: Replacing a torn, creased, or liquid-damaged flex cable Restoring unresponsive or erratic trackpad behavior Completing a trackpad replacement when the original cable is unusable Replacing a torn, creased, or liquid-damaged flex cable Restoring unresponsive or erratic trackpad behavior Completing a trackpad replacement when the original cable is unusable Installation Note: Requires full bottom case removal and delicate disconnection of the ZIF connector. The cable routes tightly under the battery—extreme care is required. Recommended for experienced or certified technicians only.
Replacement Keyboard for MacBook Pro 13" inch A1706 & MacBook Pro 15" inch A1707 Touch Bar (for Late 2016 mid 2017 Year) Replacement Keyboard for MacBook Pro 13″ inch A1706 & MacBook Pro 15″ inch A1707 Touch Bar (for Late 2016 mid 2017 Year) 【Compatibility】This replacement keyboard is Compatible with original MacBook Pro 13″ inch A1706 & MacBook Pro 15″ inch A1707 Touch Bar (for Late 2016 mid 2017 Year) Laptop. 【Compatible Part Numbers】661-06377 【Compatible MBP Numbers】A1706 series :MacBook Pro 13 inch 2017 MacBookPro14,2 & MacBook Pro 13 2016 MacBookPro13,2 MNQF2LL/A MNQG2LL/A MLH12LL/A MLVP2LL/A etc A1707 series:MacBook Pro 15 inch 2016 MacBookPro13,3 & MacBook Pro 15 inch 2017 MacBookPro14,3 Release June 2017 MPTR2LL/A MPTU2LL/A MPTT2LL/A MPTV2LL/A Release October 2016 MLH32LL/A MLW72LL/A MLH42LL/A MLW82LL/A
The Apple MacBook Pro 16-inch (2019) is powered by an Intel Core i9 processor, paired with 16GB RAM and a fast 512GB SSD for powerful and reliable performance. Designed for professionals and creatives, it features a premium aluminum build, immersive 16-inch Retina display, and dedicated Radeon Pro graphics for demanding workloads.
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.
A high-efficiency pre-owned HP EliteBook 865 G9 with 16" display, AMD Ryzen 7 6850U, 16GB RAM, 512GB SSD, and integrated AMD Radeon 680M graphics—ideal for business professionals seeking all-day battery life, strong performance, and enterprise security.
Specifications Feature Value Feature Value Input/Output Other Sound Mode Extra Bass Mode Category Speakers Use Other Input Power (W) 25-49W Voice Control No Waterproof Yes Support APP No Intelligent Personal Assistant None Audio Crossover Full-Range Number of Loudspeaker Enclosures 2 Power Source None Channels 2 (2.0) Battery Yes Communication USB Speaker Type Portable Cabinet Material Plastic Brand Name QUCAA Origin Mainland China Certification CE
LB-LINK BL-WN510BT – Compact USB Bluetooth 5.1 adapter with up to 20m range and support for multiple device types.Ideal for connecting headsets, gamepads, and more to PCs with strong, stable wireless performance. Model: LB-LINK BL-WN510BT Bluetooth Version: Bluetooth 5.1 (backward compatible with 5.0/4.2/4.0/3.0/2.0) Interface: USB 2.0 (Plug-and-Play) Operating Range: Up to 20 meters (unobstructed) Data Transfer Rate: Up to 3 Mbps Supported Profiles: A2DP, HSP, HFP, AVRCP, HID, PAN, FTP, SPP, etc. OS Compatibility: Windows 7 / 8 / 8.1 / 10 / 11 (Driver may be required for Win 7) Not natively compatible with macOS or Linux OS Compatibility: Windows 7 / 8 / 8.1 / 10 / 11 (Driver may be required for Win 7) Not natively compatible with macOS or Linux Functions: Enables PC or laptop Bluetooth connection with headsets, keyboards, mice, speakers, gamepads, printers, etc. Supports dual-mode Bluetooth (BR/EDR and LE) Functions: Enables PC or laptop Bluetooth connection with headsets, keyboards, mice, speakers, gamepads, printers, etc. Supports dual-mode Bluetooth (BR/EDR and LE) Power Consumption: Low Energy (LE) support for improved efficiency Security: Enhanced encryption and pairing features for secure connections Size: Ultra-compact nano design Weight: Less than 5g Plug & Play: Driver-free on Windows 10 and 11
Sleek, ultra-thin 24-inch Full HD display with micro-edge design, flicker-free technology, and versatile connectivity—ideal for productivity, home office, or multi-display setups. Model: HP V24v G5 Screen Size: 23.8 inches (viewable), 24-inch class Display Type: IPS (In-Plane Switching) panel Resolution: 1920 x 1080 (Full HD) at 60Hz Brightness: 250 cd/m² Contrast Ratio: 1,000:1 (static), 10,000,000:1 (dynamic) Response Time: 7 ms (gray-to-gray) Viewing Angles: 178° horizontal / 178° vertical (excellent color consistency from wide angles) Design Features: 3-sided micro-edge bezel – ideal for seamless multi-monitor setups Ultra-slim profile – modern, minimalist aesthetic Tilt-only stand: -5° to +25° VESA Mount Compatible: 100 x 100 mm (stand removable) 3-sided micro-edge bezel – ideal for seamless multi-monitor setups Ultra-slim profile – modern, minimalist aesthetic Tilt-only stand: -5° to +25° VESA Mount Compatible: 100 x 100 mm (stand removable) Connectivity: 1 x HDMI 1.4 1 x VGA (D-Sub) Audio Line-out (3.5mm) – for use with external speakers/headphones No built-in speakers 1 x HDMI 1.4 1 x VGA (D-Sub) Audio Line-out (3.5mm) – for use with external speakers/headphones No built-in speakers Eye Comfort & Sustainability: Flicker-free backlight HP Eye Ease (TÜV-certified low blue light mode—reduces eye strain without color distortion) ENERGY STAR® certified Made with post-consumer recycled plastics (up to 85% in enclosure) Flicker-free backlight HP Eye Ease (TÜV-certified low blue light mode—reduces eye strain without color distortion) ENERGY STAR® certified Made with post-consumer recycled plastics (up to 85% in enclosure) Ideal For: Home office & remote work Students and professionals Dual/triple monitor productivity setups Everyday computing, web browsing, and document editing Home office & remote work Students and professionals Dual/triple monitor productivity setups Everyday computing, web browsing, and document editing Dimensions (with stand): 21.26 x 7.76 x 15.83 in (540 x 197 x 402 mm) 21.26 x 7.76 x 15.83 in (540 x 197 x 402 mm) Weight: ~7.5 lbs (3.4 kg)
The Royal Kludge RK61 is an ultra-compact 60% mechanical gaming keyboard featuring brilliant RGB backlighting and smooth, linear RK Red switches. Equipped with versatile triple-mode connectivity (Bluetooth, 2.4GHz wireless, and USB-C wired), it offers maximum flexibility and a clean, cable-free desktop layout optimized for both competitive gaming and office productivity. ✅ Full Specifications: Model: Royal Kludge RK61 (61 Keys) — Black Edition Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Interface / Connection: Triple Mode Connection (3C): Wireless 2.4GHz (via included USB dongle) Bluetooth 5.1 (Pairs with up to 3 devices simultaneously) Wired USB Type-C (Detachable cable included) Switch Type: RK Red Mechanical Switches (Linear feel, smooth and quiet keystrokes, ideal for fast-paced gaming and quiet office typing) Hot-Swappable PCB: Yes (Supports easy replacement of 3-pin or 5-pin switches without soldering) Layout: Compact 60% Minimalism Layout, 61 Keys (US QWERTY / Arabic-English dual print variants supported) Backlighting: Full dynamic RGB Backlight with 18 customizable lighting modes, 8 monochrome modes, and adjustable brightness/speed Material & Build: Durable ABS polymer housing with high-quality ergonomically curved keycaps to reduce hand fatigue Design & Form Factor: Compact, space-saving design with a built-in 8° ergonomic typing angle for optimal comfort Battery Capacity: 1450mAh rechargeable battery built-in (Up to 13 hours of continuous use with backlighting active, high standby efficiency) Compatibility: Windows, macOS, Android, iOS, Linux, and major gaming consoles Dimensions: Approx. 289 x 103 x 39 mm (11.4 x 4 x 1.6 inches) Weight: Approx. 0.50 kg (1.1 lbs)
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
A rugged and versatile pre-owned Lenovo ThinkPad T480 with 14" touchscreen, 8th Gen Core i5, 8GB RAM, and 256GB SSD—ideal for professionals who need durability, security, and touch-enabled productivity.
807956-001 807957-001 Replacement HS03 HS04 Laptop Battery for HP 240 G4, 245 G4, 250 G4, 255 G4, 256 G4 Series fits Notebook 14 14G 15 15G HP 807611-421 807611-131 HSTNN-LB6U HSTNN-LB6V About this item Battery Type: Li-ion Voltage: 14.8V Capacity: 2200MAH CELL: 4cell Color: Black. Compatible Models: HP 240 G4 Series, HP 245 246 G4 Series, HP 250 255 256 G4 Series, HP Notebook 14 14g 15 15g Series. Replacement For: HSO4, HSO3, HSTNN-LB6V, HSTNN-LB6U, 807957-001, 807956-001, 807611-421, 807612-421 TPN-C125 TPN-C126 TPN-I119 TPN-I120. 100% New from the Manufacturer, with About 500 recharge cycles over the life of the battery. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.
WiWU Linker 721HD Hub – Compact USB-C hub with 7 ports including 100W PD, dual USB-A, USB-C data, HDMI 4K60, and dual SD/TF slots.Aluminum body, plug‑and‑play compatibility with MacBooks and modern USB‑C devices—ideal for laptop expansion. Model: Linker 721HD (WiWU) Material: Aluminum-alloy shell Ports: 2 × USB‑A 3.1 1 × USB‑C 3.1 (data) 1 × USB‑C PD power delivery (up to 100 W) 1 × HDMI (4K @ 60 Hz) SD card slot + micro‑SD (TF) slot (USB 3.0 speed) Ports: 2 × USB‑A 3.1 1 × USB‑C 3.1 (data) 1 × USB‑C PD power delivery (up to 100 W) 1 × HDMI (4K @ 60 Hz) SD card slot + micro‑SD (TF) slot (USB 3.0 speed) Cable: Fixed USB‑C male cable (approx. 15 cm) Compatibility: Plug-and-play with USB-C/Thunderbolt 3/4 devices (MacBook, XPS, Chromebooks, mobile devices with DP-Alt Mode) Design: Compact, space gray finish optimized for travel/work setups Weight: ~150 g
BATTERY ASUS A41-X550E X450 X450e X450j X450jf X550e X550z X550za X750j X750ja X751 X751m A450j A450jf A450e F751la F751ma F751mj R751 R752 F751 K751 P750L P750L Series About this item Gomarty:100% Brand NEW, Battery Type: Li-ion Voltage: 15V Capacity: 2600MAH Cells: 4-cell Color: Black, High-Quality Battery for ASUS; Gomarty has registered a U.S. Trademark and the serial number is 87155272 Battery Models: A41-X550E Laptop Battery for Asus X450 X450E X450J X450JF X751M X751MA-DB01Q X751MA X751L X750JA This laptop Battery works with ASUS D451V D451E K450V K550E K550D K550DP F450 F450C F450V F450E F450J F450JF F751 F751L F751LA F751LAV F751LB F751LD F751LDV F751LJ F751LK F751LN F751LX F751M F751MA F751MD F751MJ A450 A450C A450V A450E A450J A450JF Series 0B110-00220000M. Grade A cells ensure fast charges and low power consumption, while built-in circuit protection ensures safety and stability. Customer Questions: If you have any questions, you can contact us. We will respond within 24 hours.
Genuine-spec US layout keyboard replacement for MacBook Pro 15″ (Models A1706 and A1707, 2016–2017)—featuring Apple’s second-generation Butterfly mechanism, backlighting, and full OEM compatibility for professional-grade repairs. Compatible With: MacBook Pro 15″ (2016, Model A1707) MacBook Pro 15″ (2017, Model A1706) Both models include Touch Bar and are powered by Intel Core i7/i9 processors. MacBook Pro 15″ (2016, Model A1707) MacBook Pro 15″ (2017, Model A1706) Both models include Touch Bar and are powered by Intel Core i7/i9 processors. Layout: Standard US English (QWERTY) with full-size keys, inverted-T arrow keys, and dedicated function row (mapped to Touch Bar). Keyboard Type: Apple’s 2nd-generation Butterfly mechanism—thinner profile with reduced travel; known for sensitivity but requires careful handling. Integrated Features: Backlit keys, ambient light sensor support, and original ribbon cable connector matching Apple’s design for direct logic board attachment. Build & Fit: Precision-engineered to align flush with the top case—ensures consistent key height and tactile response when properly installed. Installation Note: The keyboard is glued into the top case and must be carefully removed and re-adhered. Requires full disassembly of display, battery, and internal components. Recommended for experienced technicians only.