Verbatim Vi3000 512 GB NVMe SSD — high-speed PCIe 4.0 storage for desktops & laptops.• Read up to 5,000 MB/s • Write up to 3,200 MB/s • Compact M.2 2280 form factorInterface: PCIe Gen 4 × 4 NVMe 1.4 | Warranty: 3 Years | SKU: Vi3000-512G 🟣 Full Details : The Verbatim Vi3000 512 GB PCIe NVMe M.2 SSD delivers blazing-fast performance for everyday computing, gaming, and creative work. Using the latest PCIe Gen 4 × 4 NVMe 1.4 interface, it achieves read speeds up to 5,000 MB/s and write speeds up to 3,200 MB/s, making it a great upgrade for faster boot times and quicker app loading. PCIe Gen 4 × 4 NVMe 1.4 interface for ultra-fast transfer speeds Up to 5,000 MB/s read and 3,200 MB/s write performance Compact M.2 2280 design for desktops & laptops Low power consumption and quiet operation 3-year limited warranty with Verbatim reliability Works with most modern desktops and laptops that support M.2 NVMe (PCIe) drives. Fully backward compatible with PCIe 3.0 systems (at lower speeds). Verbatim Vi3000 512 GB M.2 NVMe SSD Quick installation & warranty guide
lenovo battery 42T4733 42T4235 42T4708 42T4714 Laptop Battery Replacement for Lenovo Ibm Thinkpad Sl410 Sl410k Sl510 T410 T410i T420 T510 T510i T520 E40 E50 E420 E520 Sl410 2842 Sl410 2874 Sl410k(11.1V 5200Mah) About this item Battery Type: Li-ion Voltage: 11.1V Capacity: 5200Mah Compatible Part Number: 42T4235 42T4708 42T4714 42T4733 42T4756 42T4764 42T4798 42T4803 42T4819 42T4848 42T4911 51J0499 57Y4185 57Y4545 ASM 42T4703 42T4752 42T4794 42T4702 Compatible with Battery P/N : LENOVO ThinkPad E40 E50 Edge 0578-47B Edge 14″ 05787UJ d 14″ 05787VJ 14″ 05787WJ Edge 15″ E420 E425 E520 L410 L412 L420 L421 L510 L512 L520 SL410 2842 SL410 2874 SL410k 2842 SL510 SL510 2875 SL510 T410 T410i T420 T510 T510i T520 T520i W510 W520 New from Manufacturer. CE-/FCC-/RoHS-Certified for safety.
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.
lenovo battery 00NY486 48Wh 4.4Ah Battery Replacement for Lenovo ThinkPad L560 20F1 20F2 L570 20J8 20J9 20JQ 20JR Series Laptop SB10H45071 00NY487 SB10H45072 00NY488 SB10H45073 00NY489 SB10H45074 71+ 10.8V About this item 【Battery Model】00NY486; Voltage:10.8V; Capatity:48Wh 4.4Ah 6-Cells; Color:Black; Condition:Brand New. 【Replacement Part Number】00NY486 SB10H45071 00NY487 SB10H45072 00NY488 SB10H45073 00NY489 SB10H45074 71+ 【Compatible Machine Models】 for Lenovo ThinkPad L560 (Type 20F1 20F2) Series; for Lenovo ThinkPad L570 (type 20J8 20J9 20JQ 20JR) Series 【Security Certified】 Certified by CE, UL, FCC, and RoHS for safety. Every battery has passed factory testing, built-in circuit protection ensures safety and stability. More than 500 recharge cycles over the life of the battery.
Experience professional-grade power with this pre-owned ThinkPad E14 Gen 2. Featuring a robust AMD Ryzen 7 4700U 8-core processor, 16GB RAM, and a 256GB NVMe SSD, this 14-inch laptop is built for high-speed productivity, secure data management, and long-lasting durability.
Genuine-spec touchpad flex cable compatible with both MacBook Air A2179 (Intel, 2020) and A2337 (M1, 2020)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Air 13″ (2020, Intel) – Model A2179 (Model Identifier: MacBookAir9,1) MacBook Air 13″ (2020, Apple M1) – Model A2337 (Model Identifier: MacBookAir10,1) MacBook Air 13″ (2020, Intel) – Model A2179 (Model Identifier: MacBookAir9,1) MacBook Air 13″ (2020, Apple M1) – Model A2337 (Model Identifier: MacBookAir10,1) ✅ Important Note: Despite different processors (Intel vs. M1), Apple used the same trackpad assembly and flex cable in both A2179 and A2337. This makes the flex cable fully interchangeable between the two models. 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 the right side of the battery and logic board. Connects via a ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under the right side of the battery and logic board. Connects via a ZIF (Zero Insertion Force) socket—align carefully and latch gently. Recommended for experienced or certified technicians only.
Genuine-spec touchpad flex cable for MacBook Pro 13″ (Model A2338, 2020, Apple M1)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 13-inch (2020, Model A2338, Model Identifier MacBookPro17,1) with Apple M1 chip (2 Thunderbolt ports). 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 Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing 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. Important Compatibility Notes: ✅ Only for A2338 (13″, M1, 2020) ❌ Not compatible with: Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro ✅ Only for A2338 (13″, M1, 2020) ❌ Not compatible with: Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro
Genuine-spec touchpad flex cable for MacBook Pro 16″ (Model A2141, 2019, Intel)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 16-inch (2019, Model A2141) with Intel Core i7/i9 processors (Model Identifier: MacBookPro16,1) (Note: A2141 is the non-base configuration of the 2019 16″ MacBook Pro—typically higher-end Intel models.) 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 coordinates, Force Touch pressure data, and haptic feedback signals—critical for macOS gestures (e.g., Force Click, three-finger lookup, pinch-to-zoom) and Taptic Engine responsiveness. OEM-Quality Construction: Replicated to Apple’s exact specifications—including cable length, connector pitch, EMI shielding, and bend radius—ensuring reliable signal integrity and long-term 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 disassembly of the bottom case, speaker removal, and careful routing beneath the battery and logic board. Connectors use ZIF (Zero Insertion Force) sockets—must be aligned and latched gently. Recommended for certified or professional repair technicians only. Important: This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A2141 trackpad and Taptic Engine. Not compatible with M1 MacBook Pro 16″ (A2485), 14″ models (A2442), or any MacBook Air. This is flex cable only—not a complete trackpad assembly. Must be used with the original or compatible A2141 trackpad and Taptic Engine. Not compatible with M1 MacBook Pro 16″ (A2485), 14″ models (A2442), or any MacBook Air. Model Verification: Confirm your device is MacBook Pro A2141 (16″, 2019, Intel) via > About This Mac > Model Identifier (should read MacBookPro16,1).
Specifications Input/Output USB Sound Mode Live Sound Mode, Standard Mode Category Speakers Use HOME Bluetooth Version 5.0 Input Power (W) <25 W Active Noise-Cancellation PASSIVE Wi-Fi Music Apple Music Voice Control No Frequency Range 100Hz-20kHz Output Power 35W Display Screen No Waterproof No Support APP Yes Support Memory Card Yes Material Plastic Playback Function MP3 Remote Control No Support Apt-x No Intelligent Personal Assistant None Display Screen No Built-in Microphone No Audio Crossover Full-Range Number of Loudspeaker Enclosure 1 Power Source Battery PMPO 25W Channels 2 (2.0) Feature Play Video, Wireless Subwoofer, Wireless Rear Speakers Battery Yes Communication AUX, USB, Bluetooth Speaker Type Portable Cabinet Material Plastic Brand Name SwYiSm Origin Mainland China Certification CE Function 1 Wireless Bluetooth Function 2 Originality Function 3 Vintage Kerosene Lamp Function 4 Decorative Lamp
Genuine-spec keyboard replacement for MacBook Pro 13″ (Model A2251, 2020) — choose US QWERTY or UK QWERTY (with £ symbol). Features Apple’s reliable Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: MacBook Pro 13-inch (2020, Two Thunderbolt Ports, Model A2251, Model Identifier MacBookPro16,1) with Intel Core i5/i7 processors. Layout Options (select at purchase): US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. Keyboard Type: Apple’s Magic Keyboard with scissor-switch mechanism—offering improved durability, quieter typing, and 1mm key travel compared to Butterfly keyboards. Integrated Features: Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Precision Build: Engineered to match Apple’s exact dimensions, key spacing, and top-case curvature—ensures seamless visual and functional integration. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful adhesive removal, and professional re-adhesion. Recommended for experienced or certified repair technicians only.
Experience flagship performance with this pre-owned ThinkPad E14 Gen 2. Driven by an 11th Gen Intel Core i7 processor, 16GB RAM, and a 512GB NVMe SSD, this 14-inch laptop delivers high-speed responsiveness and modern features like Thunderbolt 4 for the ultimate professional setup.
OEM-quality trackpad replacement (without flex cable) for MacBook Air 13.3″ M1 (Model A2337, EMC 3598)—available in Space Gray, Gold, and Silver finishes—engineered for precise Force Touch response, smooth multi-touch gestures, and perfect color-matched integration. Compatible With: MacBook Air 13.3-inch (2020, Model A2337, EMC 3598) with Apple M1 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Intended for professional technicians who will reuse or transfer the original internal components. Color Options: Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Force Touch Support: Fully compatible with pressure-sensitive input and haptic feedback when used with the original Taptic Engine and logic board—ensuring full macOS gesture functionality (e.g., Force Click, Look Up, pressure-sensitive drawing). Precision Engineering: Features the same smooth glass surface, curvature, and micro-click mechanism as Apple’s original—delivering consistent tracking accuracy and tactile feel. Installation Requirements: Requires complete bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Adhesive must be applied precisely to maintain structural integrity and sensor alignment. Recommended for certified or experienced repair technicians only. Important: This is a bare trackpad assembly—not a plug-and-play module. Functionality depends on correct integration with original electronics.
SanDisk 2TB Portable SSD - Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware - External Solid State Drive - SDSSDE30-2T00-G26 SanDisk 2TB Portable SSD – Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware – External Solid State Drive – SDSSDE30-2T00-G26 About this item Solid state performance with up to 800MB/s read speeds in a portable drive. (Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.) Back up your content and memories on a storage solution that fits seamlessly into your mobile lifestyle. Take it with you on your adventures—up to two-meter drop protection means this durable drive can take a beating. (Based on internal testing.) Secure it to your belt loop or backpack for extra peace of mind thanks to the tough rubber hook. From SanDisk, a brand professional photographers trust to take on assignments.
Wireless freedom with zero compromise. The A4Tech 3330N is a high-performance 2.4GHz wireless combo that combines the GK-3 full-size keyboard with the G3-330N optical mouse. Featuring a 10–15m operating range, 12-month battery life, and 12 multimedia hotkeys, it’s the perfect plug-and-play solution for a clean, cable-free workspace. The A4Tech 3330N Wireless Desktop is engineered for consistent stability and long-term durability. Utilizing advanced Smart Wireless SoC technology, this set minimizes circuit loss and interference, providing a reliable connection that feels as responsive as a wired setup. Key Features: Consistent Wireless Stability: Advanced 2.4GHz powerful wireless connection with a distance of up to 10–15 meters. Auto-channel stabilizing ensures essentially no delays or connection conflicts. Energy Efficient Design: Enjoy up to 12 months of battery life thanks to energy-efficient engineering. The set also features Auto Power Saving with a 4-level sleep mode that activates after just 0.2s of inactivity. Full-Size Multimedia Keyboard: The GK-3 keyboard includes 12 Fn hotkeys for quick access to media controls, along with laser-inscribed keys that never fade and adjustable legs for ergonomic comfort. Precision Optical Mouse: The included G3-330N mouse offers a 1200 DPI resolution for smooth and accurate tracking. Its symmetric design makes it comfortable for both right and left-handed users of all hand sizes. 16-in-One Gestures: The mouse supports 16 different gestures to perform selectable hotkey commands, enhancing your workflow and productivity. Spill-Resistant Durability: The keyboard is designed with built-in drain holes, ensuring that accidental liquid spills won’t end your workday. Specifications at a Glance: Connection: 2.4G Hz Wireless (Nano USB Receiver) Keyboard Model: GK-3 (Full-Size) Mouse Model: G3-330N (1200 DPI Optical) Operating Range: 10 to 15 Meters Hotkeys: 12 Fn Multimedia Hotkeys Battery: 1 AA for Keyboard, 1 AA for Mouse (Up to 12 months) Compatibility: Windows 7 / 8 / 8.1 / 10 / 11
Genuine Apple MacBook Pro 15" (A1707) LCD display assembly in Space Gray—professionally removed from original units and tested for full functionality. Ideal for high-quality repairs with OEM clarity and color accuracy. Genuine Apple MacBook Pro 15″ (A1707) LCD display assembly in Space Gray—professionally removed from original units and tested for full functionality. Ideal for high-quality repairs with OEM clarity and color accuracy. Model Compatibility: Designed exclusively for MacBook Pro 15-inch (2016–2017 models, A1707). Original Apple Display: Not a third-party or replica—this is an authentic Apple Retina display assembly carefully pulled from verified MacBook Pro units. Retina Display Quality: 15.4-inch LED-backlit screen with 2880 x 1800 resolution, P3 wide color gamut, and True Tone support (if originally equipped) for vibrant, true-to-life visuals. Complete Assembly Included: Comes with LCD panel, front glass, integrated FaceTime HD camera, ambient light sensor, and full bezel—ready for direct installation. Space Gray Finish: Matches the original Space Gray MacBook Pro chassis for seamless aesthetic integration. Professionally Inspected: Each unit is tested for dead pixels, backlight uniformity, discoloration, and physical integrity to ensure reliable performance. “Pulled” Condition: Removed from a genuine, used MacBook Pro—fully functional with OEM performance, but not brand new. No cracks or major blemishes. Ideal for Repair Professionals: Trusted by technicians and refurbishers who require factory-level display quality and compatibility.
The Moxom MX-ST16 is a 12-in-1 safety power strip with 4 AC outlets, 7 USB-A ports, and 1 USB-C PD port. It supports up to 2500W / 10A total load and provides fast USB charging (PD 20W + QC 18W), making it a practical charging hub for home, office, and desk setups. ⚡ 12-in-1 Multi-Output Design: 4 AC sockets + 7 USB-A + 1 USB-C PD allow powering and charging many devices at once. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🛡️ Multi-Safety Protection: Overload protection, surge/over-voltage protection, over-current and overheating protection, plus foreign-object detection. 👶 Child-Safety Shutters: Safety doors on AC outlets reduce accidental contact. ⏻ One-Key Master Switch: Single button controls all outlets for easy power cut-off. 📏 Long Extension Cord: About 2 meters for flexible placement. 🧊 Heat-Resistant Build: ABS + PC construction designed for durability under continuous load.
Experience elite performance with the Lenovo ThinkPad E14 Gen 3, powered by the AMD Ryzen 7 5700U 8-core processor. Featuring 16GB RAM, a lightning-fast 512GB NVMe SSD, and a professional 14-inch FHD display, this laptop is engineered for high-level productivity and military-grade durability.
RK61 RGB Mechanical Keyboard – Compact 60% keyboard with Blue switches, tri-mode (Bluetooth/2.4GHz/Wired), and vibrant RGB.Perfect for minimal desk setups and wireless performance with a unique W-W-B color design. Model: Royal Kludge RK61 Layout: 60% compact (61 keys, no numpad or F-row) Switch Type: Blue Mechanical Switches (clicky + tactile feedback) Backlight: RGB with multiple lighting modes & effects Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Battery: 1450mAh rechargeable battery Keycaps: ABS double-shot (W-W-B colorway: White-White-Black) Hot-Swappable: No (unless stated on specific variant) Compatibility: Windows, macOS, Android, iOS Anti-Ghosting: Full N-Key rollover Software Support: RK software for key remapping and RGB control (Windows only) Build Material: ABS plastic case, plastic plate Cable: Detachable USB-C cable included Dimensions: Approx. 290 x 100 x 40 mm Weight: ~500g
Material: Plastic + Mesh fabric Bluetooth version/chipset: 5.4/ATS2853 Transmission Distance: 12M Working voltage: 18.5V Impedance: 4Ω Speaker power: Tweeter: 50W * 2 Subwoofer: 200W Battery (mAh):30000mAH/18.5V*6000;18650/2000mA*15; 3 in series and 5 in parallel Charging time: about 3 hours Calling: 20 hours Music playback: 12 hours Standby time: 6 months 1.5.4 wireless, fast, stable, and efficient connection, excellent sound quality 2 . Sound Card/Karaoke/wireless speaker, all in one, built-in DSP, multiple EQ settings, support internal monitoring/recording/live streaming function, 433/360° omnidirectional remote control (can work through walls) 3. Efficient speakers and power amplifier for loud sound and high-fidelity music playback 4,30000mAh power bank (18.5V*6000mAh; 18650/2000mA*15; 3 in series and 5 in parallel), colorful lights available in various modes, controllable flashing lights CTN GW: 18.5kg ± 0.2kg Carton size: 50.5 * 44.2 * 39cm
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.