The Samsung Crystal UHD U8000F 65″ 4K TV UA65U8000FUXTW uses a 65-inch LCD panel with 3840 × 2160 resolution. It delivers standard 4K performance for everyday viewing. Samsung uses the Crystal Processor 4K for image processing and upscaling. As a result, lower-resolution content converts closer to 4K output. In addition, the TV supports HDR10 and HDR10+, which improve contrast between bright and dark scenes. The display runs at a 60 Hz refresh rate. Also, Motion Xcelerator reduces blur in fast motion content such as sports and action. Samsung equips the TV with Tizen OS. Therefore, users access streaming apps, SmartThings features, and basic voice control options depending on setup. Connectivity includes HDMI, USB, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. In addition, the TV supports ALLM for basic gaming response time. This model focuses on 4K resolution, standard HDR support, and essential smart features without advanced gaming or local dimming systems. Specifications: 65-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with 4K upscaling support HDR10 and HDR10+ compatibility 60 Hz native refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
Looking for a top-notch gaming monitor? Look no further than the MSI G255F 24″ 180HZ Gaming Monitor. With its impressive 180Hz refresh rate, this monitor ensures smooth and fluid gameplay, providing you with a competitive edge in fast-paced games. The MSI G255F features a 24-inch display, offering vibrant colors and sharp visuals for an immersive gaming experience. Whether you’re battling foes or exploring vast virtual worlds, every detail will pop on this monitor. Equipped with AMD FreeSync technology, the G255F eliminates screen tearing and stuttering, delivering tear-free gaming sessions. Say goodbye to distractions and hello to uninterrupted gaming bliss. Thanks to its fast response time, input lag is minimized, ensuring responsive controls and accurate gameplay. You’ll feel in total control of your actions, giving you the edge you need to dominate the competition. The slim bezel design of the G255F not only looks sleek but also maximizes your viewing area, immersing you further into the game. Say goodbye to distractions and hello to pure gaming immersion. Setting up the MSI G255F is a breeze with its versatile connectivity options, including HDMI and DisplayPort inputs. Whether you’re connecting to a PC or gaming console, compatibility is never an issue. In addition to its gaming prowess, the G255F doubles as a versatile productivity tool with its adjustable stand. Customize your viewing angle for optimal comfort during long gaming sessions or work marathons. In conclusion, the MSI G255F 24″ 180HZ Gaming Monitor is a powerhouse of performance, delivering smooth gameplay, vibrant visuals, and versatile functionality. Upgrade your gaming setup today and experience the difference for yourself. Specifications: Display : 24.5” Rapid IPS Resolution : 1920 x 1080 (FHD) Refresh Rate : 180Hz Response Rate : 1ms (GtG)
Genuine-spec US layout keyboard replacement for MacBook Pro 15″ (2018–2019, Models A1989/A1990)—designed for reliable typing, full compatibility, and seamless integration with original top case assemblies. Compatible With: MacBook Pro 15-inch (2018 A1989 and 2019 A1990 models) with Touch Bar. Layout: Standard US English (QWERTY) with full-size keys, including inverted-T arrow keys and dedicated function row. Integrated Features: Includes built-in backlighting, scissor-switch mechanism (3rd-gen Butterfly or revised Butterfly mechanism, depending on original model year), and ribbon cable connector matching Apple’s OEM design. Functionality: Supports all native keyboard features, including brightness, volume, media controls, and Touch ID power button (note: Touch ID sensor is not included—this is the keyboard only). Build Quality: Precision-engineered to match Apple’s original fit, feel, and durability—ideal for professional repairs or top case refurbishment. Installation Note: Requires full top case disassembly. Keyboard is adhered to the top case and must be carefully removed and replaced using proper tools and techniques. Recommended for experienced technicians. Model Verification: Ensure your MacBook is A1989 (2018) or A1990 (2019) before purchase—keycaps and connectors differ from other MacBook generations.
The MSI MPG 242R X60N 600Hz FHD Rapid TN Gaming Monitor delivers ultra‑fast performance and fluid visuals for competitive gamers. Its 24‑inch Full HD display combines high refresh rates with sharp clarity to make every frame feel smooth and responsive. Moreover, the blazing 600Hz refresh rate helps reduce motion blur so you can react faster in fast‑paced games and esports titles. This gaming monitor features a Rapid TN panel that offers extremely quick response times, minimizing ghosting and motion artifacts during intense action. Additionally, the crisp visuals and rich colors bring games and media to life, enhancing your overall experience. The sleek design and thin bezels provide a clean and immersive view that fits perfectly into any gaming setup. The MSI MPG 242R X60N includes multiple connectivity options, allowing easy connection to gaming PCs, consoles, and other devices. Furthermore, ergonomic adjustments help you find a comfortable viewing angle during long sessions. Therefore, it is ideal for esports players and competitive gamers who demand peak performance. Finally, it combines ultra‑fast refresh rates, responsive visuals, and versatile design for superior gaming experiences. Specifications: 24″ FHD gaming monitor 600Hz refresh rate for ultra‑smooth gameplay Rapid TN panel for quick response times Immersive visuals and sleek design Multiple connectivity options
The MSI Optix G321CQP Monitor delivers smooth gaming with a 165Hz refresh rate and curved 31.5-inch display. It suits immersive gameplay well. Moreover, the 1000R curved VA panel matches the natural eye shape. This improves comfort and viewing immersion. The WQHD resolution provides sharp and detailed visuals. You get better clarity compared to standard Full HD screens. In addition, the 1ms response time reduces motion blur during fast scenes. This helps maintain clear and responsive gameplay. It also supports AMD FreeSync Premium for smoother visuals. Screen tearing and stuttering are reduced during gaming sessions. Connectivity includes DisplayPort and HDMI inputs for flexibility. You can connect multiple devices with ease. The MSI Optix G321CQP Monitor offers a balanced gaming experience with speed, clarity, and immersion. Specifications: 31.5-inch WQHD (2560 × 1440) curved VA panel 165Hz refresh rate for smooth gameplay 1ms (MPRT) response time AMD FreeSync Premium support DisplayPort and HDMI connectivity
Genuine-spec keyboard replacement for MacBook Pro 14" & 16" (2021–2025, M1 Pro/Max to M4 Pro/Max)—available in US QWERTY or UK QWERTY (with £ symbol). Features Apple’s Magic Keyboard with scissor-switch mechanism, full backlighting, and precise OEM fit. Genuine-spec keyboard replacement for MacBook Pro 14″ & 16″ (2021–2025, M1 Pro/Max to M4 Pro/Max)—available in US QWERTY or UK QWERTY (with £ symbol). Features Apple’s Magic Keyboard with scissor-switch mechanism, full backlighting, and precise OEM fit. US Layout: Wide Enter key @ above 2, # above 3 Standard inverted-T arrow keys Wide Enter key @ above 2, # above 3 Standard inverted-T arrow keys UK Layout: Tall vertical Enter key £ symbol on key 3 @ accessed via Right Alt + 2 Matches Apple’s official UK regional configuration Tall vertical Enter key £ symbol on key 3 @ accessed via Right Alt + 2 Matches Apple’s official UK regional configuration Keyboard Type: Apple Magic Keyboard with scissor-switch mechanism Backlighting: Full per-key white backlight with ambient light sensor support Function Row: Full-height physical function keys (F1–F12) with macOS shortcut toggling Build Quality: OEM-grade keycaps, consistent actuation force, and precise top-case alignment
A4Tech Wireless Keyboard & Mouse Combo USB | 3000N
The Xiaomi TV A 55 2026 delivers sharp 4K visuals ideal for movies, shows, and streaming. Its 55-inch display fills your space with rich detail and vibrant colors. The 3840×2160 resolution brings sharp textures and clear images. This creates a cinematic feel right at home. Moreover, the Xiaomi TV A 55 2026 supports HDR formats such as HDR10 and HLG for improved contrast and lifelike scenes. Bright areas shine, and darks stay deep. This helps scenes look more realistic in films and series. In addition, this model benefits from motion-smoothing via MEMC technology. Fast scenes in sports or action movies stay smooth and fluid. This reduces blur and keeps motion clean. As a result, viewing remains comfortable and enjoyable. Furthermore, the Xiaomi TV A 55 2026 runs on a smart platform powered by Google TV. You can access streaming apps, cast content, or browse channels easily. Also, the TV features dual 10 W speakers with Dolby Audio and DTS-X sound support. Audio comes out clear, balanced, and immersive. In addition, connectivity options include multiple HDMI ports, USB, Wi-Fi, Bluetooth, and Ethernet support. This gives flexibility for consoles, streaming devices, or external drives. Setup remains hassle-free for many use cases. Overall, the Xiaomi TV A 55 2026 offers a strong balance of quality, smart features, and ease of use. It works well for entertainment, streaming, and everyday viewing. This TV is ideal for users seeking a 55″ 4K display with modern smart features at a reasonable price. Specifications: Resolution 4K, 3840 × 2160 Refresh rate 60Hz Speaker 2 x 10W Dimensions including base (L × W × H) 1226*312*770mm Dimensions not including base (L × W × H) 1226*76*711mm CPU Quad cortex A55 GPU Mali-G52 MC1 RAM 2GB ROM 8GB
The LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor is designed for gamers who demand top-tier performance and stunning visuals. Its massive 45-inch curved OLED display provides an immersive gaming experience with deep blacks and vibrant colors. Firstly with a 240Hz refresh rate, this monitor delivers ultra-smooth gameplay. Combined with a 0.03ms response time, it ensures minimal motion blur and fast reactions in competitive games. Every frame is rendered with precision, giving you a serious edge in fast-paced action. The 21:9 aspect ratio and 3440 x 1440 resolution offer a wide field of view, making it perfect for immersive gaming and multitasking. Whether exploring vast open worlds or battling in intense FPS games, you get an expansive and detailed view. Equipped with HDR10 and OLED self-lit pixels, this gaming monitor delivers incredible contrast and true-to-life colors. Dark scenes appear richer, and bright scenes pop with stunning clarity. Every detail stands out, enhancing the overall gaming experience. For seamless gameplay, the LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor supports AMD FreeSync Premium and NVIDIA G-SYNC. These technologies eliminate screen tearing and stuttering, ensuring smooth and fluid visuals. With multiple connectivity options, including HDMI 2.1, DisplayPort 1.4, and USB ports, this monitor is built for modern gaming rigs. It supports the latest consoles and high-end PCs, ensuring top performance across devices. In conclusion, the LG UltraGear 45″ 240Hz OLED Curved Gaming Monitor is a must-have for serious gamers. Its high refresh rate, fast response time, and stunning OLED visuals make it a top-tier choice for competitive and immersive gaming. Specifications: Display : 44.5″ OLED Resolution : 3440×1440 Ultra-WQHD Refresh Rate : 240Hz Response Rate : 0.03ms GTG Curvature : 800R
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.
Specification Details Specification Details Input/Output Other Sound Mode Standard Mode Category Speakers Use Home Tweeter Type Cone Control Volume Control, Playback Bluetooth Version 5.0 Input Power (W) <25 W Active Noise Cancellation Passive Voice Control No Output Power Other Waterproof Yes Support APP No Support Memory Card Yes Material Plastic Playback Function MP3, FLAC, ALAC Remote Control No Support Apt-X No Intelligent Personal Assistant Apple’s Siri Display Screen No Built-in Microphone Yes Audio Crossover Full-Range Number of Loudspeaker Enclosure 1 Power Source DC, Battery, USB PMPO 40 W Channels 2 (2.0) Feature Phone Function, Play Video Battery Yes Communication Bluetooth, Audio Line Speaker Type Portable Cabinet Material Plastic Brand Name Bigmzpai Origin Mainland China Bluetooth Version V5.0 Waterproof Level IPX6 Battery Capacity Power Battery 10000mAh Brand YIBOLANG
Genuine Apple sleep/wake sensor flex cable (Hall effect sensor) for MacBook Air 13.6″ (Model A2681, 2022, M2)—ensures automatic display sleep when the lid is closed and wake-on-open functionality. OEM part number 821-04129-02. Compatible With: MacBook Air 13.6-inch (2022, Model A2681) with Apple M2 chip (all colors: Silver, Space Gray, Starlight, Midnight). Apple Part Number: 821-04129-02 (exact OEM service part). Function: Contains the Hall effect sensor that detects the magnet in the MacBook Air’s display lid. This allows macOS to: Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Location: Mounted near the right side of the keyboard, adjacent to the battery and logic board. Common Failure Symptoms: MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use Part Type: Flex cable with integrated Hall sensor—not just a cable, but a calibrated magnetic sensor module. Installation Note: Requires full bottom case removal and careful disconnection of the battery. The sensor is adhered near the I/O area—do not bend or puncture. Recommended for experienced technicians.
The Lenovo ThinkVision T24‑40 24‑inch monitor offers clear and sharp Full HD visuals that improve everyday work and multimedia tasks. As a result, text, spreadsheets, and videos appear crisp and easy to view. In addition, the IPS panel provides wide viewing angles, so colors remain consistent even when you shift your position. Furthermore, this monitor includes features that help reduce eye strain during long sessions, making it suitable for office work, study, or creative tasks. It also offers flexible connectivity options that allow you to connect laptops and desktops without extra adapters. Therefore, it fits well into both professional and home environments. Overall, the Lenovo ThinkVision T24‑40 delivers dependable display quality and practical features, making it a great choice for users seeking a reliable 24‑inch monitor. Specifications: 24″ Full HD IPS display for crisp visuals Wide viewing angles for consistent colors Eye comfort features for long sessions Flexible connectivity for multiple devices Reliable performance for work and home use
The Lenovo ThinkPad T460 features an Intel Core i5 6th Gen processor, 8GB RAM, and a fast 256GB SSD for smooth everyday performance. With a responsive 14-inch touchscreen display and the legendary ThinkPad keyboard, it’s ideal for work, study, and productivity on the go.
ZOWIE XL2411K ZOWIE XL2411K With the introduction of the PS5 and Xbox Series X. console gamers are finally able to take advantage of a 120Hz refresh rate . This is a significant upgrade for competitive FPS players, as the increased smoothness and clarity . can result in quicker reaction times and easier tracking of enemies. DyAc™ Technology – A Different Spray Feeling DyAc™ makes vigorous in-game actions such as spraying less blurry. This allows gamers to see the position of crosshair and impact points more clearly which can help with recoil control. Different In-Game Color Modes – Play To Your Liking We are releasing tailored game modes to meet different preferences and scenarios. Each color setting takes careful consideration, game by game, scene by scene. to make sure the colors work throughout the gameplay, and not compromised across different maps. Make Visual Adjustments Based on Your In-Game Needs Black eQualizer to increase visibility in dark scenes without the bright areas. Color Vibrance to adjust color setting and tone to differentiate enemy targets in-game. and Game modes to switch between presets for different game titles. these are all adjustments that allow players to play with their preferred visual settings. XL Setting to Share Share your own settings with a teammate, friend, or your fans. Save video profiles quickly and share conveniently through a simple user interface. Fluid & Flexible Adjustment – More Comfort In-Game We understand that each player has his/her own unique combination of monitor height and angle adjustment. With height adjustment & free tilt, players are able to setup quickly and conveniently resulting in a more comfortable playing environment. Smaller Base – More Playing Space New base is designed to take up less space while maintaining the same stability. This allows gamers more space in their setup for in-game movements and allows. them the flexibility to make adjustments and play comfortably. Specifications: Specifications LCD size (inch) 24″ Aspect ratio 16:9 Max. resolution (PC/Laptop) 1920 x 1080 at 144Hz (HDMI 2.0, DP) Max. resolution (Console) 1920 x 1080 at 120Hz for PS5 / Xbox series X (HDMI2.0) Refresh rate 144Hz Display area (mm) 531.36 x 298.89 Pixel pitch (mm) 0.276 1 year warranty Manufacturer Link
This item is available on backorder from abroad. A 50% down payment should be transferred to confirm the order and our salesman will specify the time till arrival after confirmation. The BenQ ZOWIE XL2586X 24″ 540Hz Gaming Monitor is designed for serious gamers. It delivers ultra-smooth visuals, ensuring you never miss a moment in fast-paced games. Firstly with a 540Hz refresh rate, the BenQ ZOWIE provides incredibly smooth gameplay. This high refresh rate reduces motion blur and offers a competitive edge in gaming. Furthermore the monitor features a 24-inch screen, offering a perfect balance between size and performance. It ensures you get an immersive gaming experience without overwhelming your desk space. Moreover the BenQ ZOWIE is equipped with a fast response time. This feature ensures that your actions are reflected on-screen instantly, providing a seamless gaming experience. Also enjoy vibrant and accurate colors with the BenQ ZOWIE XL2586X’s advanced color settings. This monitor allows you to customize your display settings to match your preferences and game requirements. The ergonomic design of the BenQ ZOWIE allows for height, tilt, and swivel adjustments. This ensures you can play comfortably for extended periods, reducing strain and enhancing your focus. The BenQ ZOWIE also includes features like Black eQualizer and Color Vibrance. These features enhance visibility in dark scenes and adjust color settings to your liking. In conclusion, the BenQ ZOWIE XL2586X 24″ 540Hz Gaming Monitor is a top choice for gamers seeking superior performance. Upgrade your gaming setup with the XL2586X and experience the next level of competitive gaming. Specifications: Display : 24.1″ Fast TN Resolution : 1920 x 1080 Refresh Rate : 540Hz
Samsung Lebanon 55″ UHD The Samsung Lebanon 55″ UHD See more on a 55-inch, 1000R curved screen. Quantum Mini-LED achieves next-generation depth to deliver exceptional picture . 55″” large screen & 1000R curvature Be immersed in lifelike images. The 55-inch screen delivers a picture that overwhelms your senses. creating an experience superior to anything seen before. This is upgraded by 1000R curvature to wrap around your field of vision for maximum immersion. Cockpit Mode & Eclipse Lighting Feel like you’re in a cockpit. Rotate the screen to Cockpit Mode with HAS, tilt and pivot for an optimal screen environment. This perfect positioning creates a new sense of world-blending , further by Eclipse Lighting. Quantum Matrix Technology An unrivaled visual experience. Revolutionary Quantum Matrix Technology with Quantum Mini LEDs . creates controlled brightness and perfect contrast for refined definition. The advanced 14-bit back light unit allows detailed HDR control which creates unmatched picture quality. Neural Quantum Processor Ultra Enjoy powerful cinematic By combining 20 multi-layer neural networks. the AI-Powered images to restore every detail, pixel by pixel. Automatic and upscale the resolution of whatever you’re watching. HDR 10+ gaming See every detail in all its glory. From shadows to sun-scorched scenes, the t ratio enables enhanced . color expression and depth. Get a competitive edge with HDR 10+, which automatically adapts. games in real-time to show you every detail that could lead to victory. Matte display Focus only on what matters. The distraction-free matte screen absorbs, not reflects. artificial and natural light, keeping you laser-focused during the toughest battles and hardest levels. Sound Dome Technology Four corner speakers and two central woofers result in a 60W 2.2.2 channel with the lowest 45Hz. notes of any gaming screen or gaming soundbar. AI Sound Booster and Dolby Atmos take it to the next level. you in a that places you inside the gaming world. Specifications: Specifications Screen Size (Class)55 Flat / CurvedCurved Active Display Size (HxV) (mm)1209.6(H) x 680.4(V) Screen Curvature1000R Aspect Ratio16:9 Panel TypeVA Brightness (Typical)600 cd/㎡ Brightness (Min)420 cd/㎡ Contrast Ratio Static1,000,000:1 (Static) Contrast Ratio (Dynamic)Mega DCR HDR(High Dynamic Range)Quantum HDR 32x HDR10+Yes Mini LED Local DimmingYes (1,056 zones) HDR10+ GamingYes Resolution3,840 x 2,160 Response Time1ms(GTG) 3 year warranty Manufacturer Link
New RI04 RI06XL Notebook Battery for HP ProBook 450 455 470 G3 Envy 15-Q001TX Laptop Series Fit P/N Spare 805294-001 811063-421 805047-851 P3G15AA HSTNN-DB7B HSTNN-PB6Q About this item Battery Type: Li-ion Capacity: 2600Mah ; Cells: 4-cell; Voltage: 14.8V Compatible: HP ProBook 450 455 470 G3 Envy 15-q000 Notebook PC series Fits: HP R104 R106XL P3G16AA HSTNN-DB7B HSTNN-PB6Q HSTNN-LB6Z HSTNN-Q94C HSTNN-Q95C HSTNN-Q97C RIO4 RIO6XL Spare 805047-851 805294001 805047-851 811063-421 Notebook Laptop Battery 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-Certified for safety
New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13" Type-C USB-C Power 821-01658-A 2018 2019 2020 Year New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13″ Type-C USB-C Power 821-01658-A 2018 2019 2020 Year About this item New A1932 A2179 A2337 DC Jack Power DC-in Board for MacBook Retina 13″ DC Power Jack Board We have good after-sales services. We share the latest information on laptop spare parts in the Chinese market with all our customers. This is NOT an easy job for someone with no technical skills in Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each DC Board is tested before shipping and working.
The ViewSonic VX2776-SH 27″ FHD 75Hz Monitor delivers clear visuals for work, entertainment, and daily use. Its Full HD resolution shows sharp details in videos, documents, and web browsing. The 27-inch screen gives wide space for multitasking and viewing comfort. This helps improve focus and productivity. Moreover, the ViewSonic VX2776-SH 27″ FHD 75Hz Monitor features a smooth 75 Hz refresh rate. This makes scrolling softer and motion more natural. Videos play smoothly with less blur. As a result, eye comfort improves during long viewing sessions. In addition, the monitor uses an IPS panel for wide viewing angles. Colors stay accurate even when viewed from the side. This helps during shared viewing and team work. The image remains bright and clear from different positions. Furthermore, the ViewSonic VX2776-SH 27″ FHD 75Hz Monitor includes eye comfort features for daily protection. The low blue light mode helps reduce eye strain. The flicker-free design supports longer use without discomfort. These features make it suitable for extended work and entertainment. Also, the monitor offers simple and flexible connectivity. It supports HDMI and VGA for easy device connection. You can connect laptops, desktops, and media players with ease. Switching sources becomes quick and smooth. In addition, the slim and modern design fits well in any space. The thin bezels give a clean and stylish look. The stand allows tilt adjustment for basic comfort. Wall mounting is also supported for flexible setups. Moreover, the large screen makes movies and shows more enjoyable. Text appears clear and easy to read. Daily tasks feel more comfortable and organized. The monitor blends well into both home and office spaces. Overall, the ViewSonic VX2776-SH 27″ FHD 75Hz Monitor delivers clarity, smooth motion, and daily comfort. It improves viewing quality for work, study, and entertainment. This monitor is a strong choice for users who want a large, smooth, and reliable display. Specifications: Display : 27″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Time : 5ms
