ACER KA220HQbid 21.5″ FHD, HDMI,AMD Freesync VESA 100x100mm Maximum Resolution 1920 x 1080 Colour Supported 16.7 Million Colours Brightness Aspect Ratio 16:9 Response Time 5 ms Backlight Technology LED Horizontal Viewing Angle 90° Vertical Viewing Angle 65° Tilt Angle -5° to 15° Features Flicker-free Features Low Dimming Features Blue Light Speakers No VGA Yes DVI Yes HDMI Yes Operating Power Consumption (Energy Star) 19.50 W Environmental Certification MPR II Package Contents KA220HQ Widescreen LCD Monitor Power Cord 1 x VGA Cable Specifications: ACER KA220HQbid 21.5″ FHD, HDMI,AMD Freesync VESA 100x100mm Maximum Resolution 1920 x 1080 Colour Supported 16.7 Million Colours Brightness 200 cd/m² Technical Information Aspect Ratio 16:9 Response Time 5 ms Backlight Technology LED Horizontal Viewing Angle 90° 1 Year Warranty
Premium-grade trackpad replacement for MacBook Air 13″ M1 (Model A2338, 2020)—available in Silver and Space Gray—engineered to OEM specifications for flawless Force Touch response, smooth gesture control, and seamless aesthetic integration. Compatible With: MacBook Air 13-inch (2020, Model A2338) with Apple M1 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Designed for professional technicians who will reuse original internal components. Finish Options: Silver: Matches Silver and Starlight MacBook Air finishes. Space Gray: Matches Space Gray and Midnight models for perfect color continuity. Silver: Matches Silver and Starlight MacBook Air finishes. Space Gray: Matches Space Gray and Midnight models for perfect color continuity. Force Touch Capable: Fully supports pressure-sensitive input and haptic feedback when paired with the original Taptic Engine and logic board—no loss of functionality. Precision Craftsmanship: Mirror-polished glass surface with exact curvature, texture, and click mechanism matching Apple’s original design for consistent performance and feel. Installation Requirements: Requires full 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. For professional use only.
The Asus VP228HE 22″ 60Hz Gaming Monitor is designed for gamers who want smooth visuals and fast response times. It offers a great balance of performance and affordability for casual and competitive players. This gaming monitor features a 22-inch Full HD display with a 1920 x 1080 resolution. The screen delivers sharp visuals with vibrant colors, enhancing your gaming experience. The 60Hz refresh rate ensures smooth motion in fast-paced games. With a 1ms response time, the Asus VP228HE reduces motion blur and ghosting. This makes gameplay more responsive, giving you an advantage in action-packed games. The monitor also includes ASUS GamePlus technology with crosshair and timer functions for better accuracy. The Asus VP228HE 22″ 60Hz Gaming Monitor features ASUS Eye Care technology. It includes a flicker-free display and a blue light filter to reduce eye strain. You can game for longer periods without discomfort. For connectivity, this monitor includes HDMI and VGA ports, making it compatible with gaming consoles, PCs, and laptops. It provides flexibility for different gaming setups. The built-in speakers deliver clear sound, eliminating the need for external speakers. The gaming monitor has a sleek and compact design that fits any setup. It is lightweight and easy to adjust, ensuring comfortable viewing angles. The durable build ensures long-lasting performance. If you need a reliable and affordable gaming monitor, the Asus VP228HE 22″ 60Hz Gaming Monitor is a great choice. It delivers smooth visuals, fast response times, and eye care features for comfortable gaming. Specifications: Display : 22″ TN Resolution : 1920×1080 Refresh Rate : 60Hz Response Rate : 1ms Speaker : 1.5W x2
The AOC Q27G11SE is a 27-inch 2K gaming monitor designed for ultra-smooth and responsive gameplay. First, its 2560 × 1440 resolution delivers sharp visuals and detailed images. The 320Hz refresh rate ensures extremely fluid motion during competitive gaming. In addition, the 0.3ms response time reduces motion blur and ghosting. Moreover, adaptive sync technology enhances smooth performance without screen tearing. The high refresh panel improves reaction speed in fast-paced games. Furthermore, the modern slim design fits perfectly into gaming setups and desks. Finally, the AOC Q27G11SE combines 2K clarity, 320Hz performance, and ultra-fast response in one competitive display. Overall, it is ideal for esports players and serious gamers. Specifications: 27-inch 2560 × 1440 2K resolution 320Hz ultra-fast refresh rate 0.3ms rapid response time Adaptive sync for tear-free gaming Slim modern gaming design
Samsung Odyssey OLED G5 G50SF 180Hz Monitor delivers sharp visuals and smooth gameplay for demanding players. It features a 27-inch QHD display with OLED technology. As a result, colors appear vibrant and contrast looks deep and realistic. Moreover, the QD-OLED panel enhances brightness and color accuracy. It supports a wide color range and Pantone validation for precise tones. In addition, HDR10 improves contrast and highlights for a more immersive experience. Furthermore, the 180Hz refresh rate and 0.03ms response time ensure fast and fluid motion. This helps reduce blur and improve reaction speed during gameplay. NVIDIA G-Sync compatibility and AMD FreeSync also reduce tearing and stutter. Finally, Samsung Odyssey OLED G5 G50SF 180Hz Monitor includes gaming tools like Black Equalizer and Virtual Aim Point. These features improve visibility and accuracy. Therefore, players gain better control in every match. Specifications: 27-inch QHD (2560×1440) OLED display with vibrant colors and deep contrast 180Hz refresh rate with ultra-fast 0.03ms response time for smooth gameplay HDR10 support for improved brightness, contrast, and image depth NVIDIA G-Sync Compatible and AMD FreeSync for tear-free gaming Gaming features including Black Equalizer and Virtual Aim Point for better visibility
The Riotouch 86″ Interactive Panel is designed to transform educational and professional environments with its cutting-edge features and user-friendly interface. This interactive flat panel offers a seamless blend of performance, connectivity, and intuitive design, making it an ideal choice for classrooms and conference rooms. Featuring a 86-inch 4K UHD display (3840 x 2160 resolution), the panel delivers crisp visuals and vibrant colors. Its 4mm anti-glare tempered glass ensures clear visibility from any angle, reducing eye strain during prolonged use. The panel supports up to 40-point multi-touch and 20-point multi-writing capabilities, allowing multiple users to interact simultaneously. This feature fosters collaborative learning and dynamic presentations, enhancing engagement and productivity. Powered by a quad-core Cortex-A55 processor and equipped with 4GB RAM and 32GB storage, the Riotouch panel ensures smooth performance. Its dual operating system support (Android and Windows) provides versatility, accommodating various software applications and user preferences. Connectivity is robust, with multiple ports including HDMI, USB 3.0, USB-C, VGA, and RJ45, facilitating easy integration with other devices. Built-in Wi-Fi and Bluetooth capabilities enable wireless connections, promoting a clutter-free workspace. The panel comes with integrated 2x15W front-facing speakers, delivering clear audio for multimedia presentations. Additionally, it includes a built-in 13MP 4K camera and microphone, supporting high-quality video conferencing and remote collaboration. Designed with user convenience in mind, the Riotouch panel features intuitive front controls for power, volume, and input selection. Its slim aluminum frame and wall-mountable design ensure it fits seamlessly into any environment. In summary, the Riotouch 86″ Interactive Panel combines high-resolution display, multi-touch interactivity, and versatile connectivity, making it a comprehensive solution for modern collaborative spaces. Specifications: Display : 86″ 4K UHD Touch Memory : 4GB Storage : 32GB OS : Android 11
Looking for a monitor that enhances your gaming and multimedia experience? Look no further than the AOC 27B2HM2. With its 27-inch screen size and 100Hz refresh rate, it offers a captivating viewing experience. Transitioning to performance, the 100Hz refresh rate ensures smooth and fluid visuals, eliminating motion blur and screen tearing. Whether you’re gaming, streaming, or watching movies, every frame is displayed with precision and clarity. Moreover, the monitor’s Full HD resolution delivers crisp details and vibrant colors, bringing your content to life. Dive into your favorite games or immerse yourself in cinematic adventures with stunning clarity and realism. In terms of design, the AOC 27B2HM2 features a sleek and modern aesthetic that complements any gaming setup or workspace. Its slim bezels maximize screen real estate, providing an expansive viewing area without distractions. Furthermore, with multiple connectivity options including HDMI and VGA ports, this monitor offers versatility and compatibility with a wide range of devices. Easily connect your gaming console, PC, or laptop and enjoy immersive entertainment. In conclusion, the AOC 27B2HM2 27″ 100Hz Monitor is the perfect choice for gamers and multimedia enthusiasts seeking exceptional performance and stunning visuals. Elevate your viewing experience to new heights with this feature-packed monitor. Specifications: Display : 27″ VA Resolution : 1920 × 1080 (FHD) Refresh Rate : 100Hz Response Rate : 4ms
REMAX RT-E601 1200MAH TIME II SERIES EYE-CARING LED LAMP Function— Use the power key to turn on/ off the lamp. Tap the power key to adjust the brightness of the lamp (brightest-normal-dimmest-off) four steps are easy to use. When folding the design lamp holder and arm can rotate the angle within a range of 180 degrees up-down adjustment. Press and hold “Mode” Set” Up” Donkey enter normal time mode, alarm clock and snooze mode, birthday reminder mode timer mode, and temperature mode. Time changes 12 hours/24 hours mode and adjusting the hours, minutes, year, month,t,h, and day. Temperature can change to Celsius or Fahrenheit. The red light will be on when it starts charging, and the red light will go out when it is fully charged. Material—ABS+PC Rated voltage—DC5V /0.5A lighting Mode—Direct glow Key Type—Touch key Luminous flux—250m Color rendering index—>80 Rated power—4W Battery Capacity—1200mAh Weight—346g Charging port—Micro SIZE—87*87*263mmCharging time—4-4:30hour Working time—3:30hour
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
Battery Replacement for A1819 MacBook Pro 13" A1706 Late 2016 Mid 2017 MLH12LL MLH12LL/A MLH12LL/A MPXV2LL MPXV2LL/A MPXV2LL/A Battery Replacement for A1819 MacBook Pro 13″ A1706 Late 2016 Mid 2017 MLH12LL MLH12LL/A MLH12LL/A MPXV2LL MPXV2LL/A MPXV2LL/A 【Technical Details:】 Model Number: A1819; Battery type: Li-ion; Voltage: 11.1V; Capacity: 4300mAh 49.02Wh，Condition: brand new 【Compatible with:】 Mid 2017 MacBook Pro 13-inch Series: MacBook Pro 13 inch Touch A1706(Mid 2017); MacBook Pro 13 inch A1706(EMC 3163) (Mid 2017); MacBook Pro 13-inch MPXV2LL/A or MPXW2LL/A or MPXX2LL/A or MPXY2LL/A 【Compatible with:】MacBook Pro 13 inch Touch A1706(Late 2016); MacBook Pro 13 inch A1706(EMC 3071) (Late 2016); MacBook Pro 13-inch MLH12LL/A or MLVP2LL/A or MNQF2LL/A or MNQG2LL/A 【Compatible with:】2016 2017 MacBook Pro 13″ Four Thunderbolt 3 Ports A1706 model: MacBook Pro 13″ Touch i5 2.9GHz A1706(Late 2016); MacBook Pro 13″ Touch i5 3.1GHz A1706(Late 2016); MacBook Pro 13″ Touch i5 3.1GHz A1706(Mid 2017); MacBook Pro 13″ Touch i5 3.3GHz A1706(Mid 2017); MacBook Pro 13″ Touch i7 3.3GHz A1706(Late 2016); MacBook Pro 13″ Touch i7 3.5GHz A1706(Mid 2017)
MacBook Pro 13″ Retina A1989 / A2159 (2018-2019) Display Assembly (Silver) MacBook Pro 13″ Touch Bar 2019z A1989 (EMC 3214 MacBookPro15,2) 2.3 GHz A1989 (EMC 3214 MacBookPro15,2) 2.7 GHz MacBook Pro 13″ Touch Bar 2019 A1989 (EMC 3358 MacBookPro15,2) 2.4 GHz A1989 (EMC 3358 MacBookPro15,2) 2.8 Ghz MacBook Pro 13″ Two Thunderbolt Ports 2019 A2159 (EMC 3301 MacBookPro15,4) 1.4 GHz A2159 (EMC 3301 MacBookPro15,4) 1.7 GHz
The Samsung 75″ QLED Q8F 4K Vision AI Smart TV (2025) | QA75Q8FAAUXTW delivers a premium viewing experience with advanced QLED display technology. It produces bright, sharp, and colorful images, so movies, sports, and games look highly immersive on the large 75-inch screen. QLED technology uses Quantum Dot enhancement to improve color accuracy and brightness performance. As a result, visuals appear more vibrant and balanced in both dark and bright scenes. This helps maintain consistent picture quality across different types of content and lighting conditions. Vision AI enhances picture and sound in real time. It analyzes each scene and automatically adjusts brightness, sharpness, and color for optimal viewing. Therefore, the TV consistently delivers improved visuals without manual tuning. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity and detail. HDR support expands contrast and color depth, making visuals more dynamic and lifelike. Fast motion handling also improves clarity, which enhances sports and action content by reducing blur and improving smoothness. The Smart TV platform provides easy access to streaming apps, gaming features, and smart home controls. It runs smoothly and allows quick switching between apps. In addition, the slim design with thin bezels gives the Samsung 75 QLED Q8F 4K Vision AI Smart TV (2025) | QA75Q8FAAUXTW a modern and premium appearance for large living spaces. Overall, this Samsung QLED TV combines strong brightness performance, AI optimization, and smart connectivity for a powerful home entertainment experience. Specifications: QLED technology delivers bright and vibrant picture quality 75-inch 4K display provides immersive viewing experience Vision AI enhances picture and sound automatically in real time HDR improves contrast, brightness, and color depth Smart TV platform supports apps, streaming, and smart features
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.
7.4V 51WH Laptop Battery G5M10 for DELL Latitude E5450 E5550 Notebook 15.6" G5M10 8V5GX R9XM9 WYJC2 1KY05-SIKER 7.4V 51WH Laptop Battery G5M10 for DELL Latitude E5450 E5550 Notebook 15.6″ G5M10 8V5GX R9XM9 WYJC2 1KY05-SIKER About this item Battery type: Li-ion Capacity:7.4V 51WH 100% New Manufacturer Features 100% Brand Replacement New battery
The ViewSonic VG2709-MHU 27″ FHD 75Hz Monitor delivers clear and sharp images for work, study, and daily tasks. Its Full HD resolution shows text and pictures with good clarity. The 27‑inch size gives you enough space to multitask comfortably. This makes work and browsing easier. Moreover, the ViewSonic VG2709‑MHU uses a SuperClear IPS panel for wide viewing angles and consistent color. Colors stay true from the sides without fading or distortion. This helps photos, videos, and graphics look natural and smooth. Even large spreadsheets or documents remain easy to read. In addition, the monitor features a smooth 75 Hz refresh rate. This makes motion feel smoother than standard 60 Hz screens. Scrolling, video playback, and light gaming feel more fluid and comfortable. This reduces motion blur during everyday use. Furthermore, the ViewSonic VG2709-MHU includes eye‑care technology for long hours of work. It offers Flicker‑Free display and a Blue Light Filter to help reduce eye strain. This helps your eyes stay comfortable during long sessions. Also, the monitor offers good connectivity with HDMI, VGA, and USB‑C (with 65W power delivery) ports. This makes it simple to connect laptops, desktops, or other devices quickly. The built-in speakers add convenience for calls, videos, or basic media without extra audio devices. Also the design of the ViewSonic VG2709‑MHU is ergonomic and adjustable. You can tilt, swivel, pivot, and adjust height to find a comfortable view. Overall, the ViewSonic VG2709-MHU 27″ FHD 75Hz Monitor combines clear visuals, smooth performance, eye comfort, and flexible connectivity. It improves productivity, browsing, and light media or gaming. It is a great choice for students, professionals, and everyday users who want a dependable and comfortable display. Specifications: Display : 27″ IPS Resolution : FHD Refresh Rate : 75Hz Response Time : 5ms
The LG UltraWide 34″ 60Hz Curved Monitor offers an expansive 21:9 aspect ratio, providing ample screen space for multitasking and immersive viewing. Its 3440 x 1440 resolution delivers sharp and detailed visuals, enhancing both productivity and entertainment experiences. Featuring a curved IPS display, this monitor ensures consistent color accuracy and wide viewing angles, making it ideal for creative professionals and gamers alike. The 60Hz refresh rate provides smooth motion, suitable for everyday tasks and casual gaming. Equipped with HDR10 support, the monitor enhances contrast and color range, bringing visuals to life with greater depth and realism. The sRGB 99% color gamut ensures vibrant and accurate colors, essential for photo and video editing. Connectivity options include USB Type-C, HDMI, and DisplayPort, allowing seamless integration with various devices. The USB Type-C port supports data transfer and power delivery, simplifying your workspace setup. The ergonomic stand offers height and tilt adjustments, enabling you to customize the monitor’s position for optimal comfort. Its sleek, virtually borderless design adds a modern touch to any workspace. In summary, the LG UltraWide 34″ 60Hz Curved Monitor combines high-resolution visuals, color accuracy, and ergonomic design, making it a versatile choice for professionals and enthusiasts. Specifications: Display : 34″ IPS Resolution : 3440 x 1440 QHD Refresh Rate : 60Hz Response Rate : 5ms GTG Curvature : 3800R
The Samsung ViewFinity S7 27″ 4K Monitor is an outstanding choice for anyone seeking a clear, high-resolution display. This 4K monitor offers crisp visuals and vibrant colors, enhancing your viewing experience for work, gaming, and entertainment. With a 27-inch display, this monitor provides a large screen space to increase productivity. The 4K UHD resolution (3840 x 2160) offers four times the clarity of Full HD, so every detail is sharp and vivid. Whether you’re editing photos, creating designs, or just enjoying high-definition content, this monitor brings every image to life. The Samsung ViewFinity S7 4K Monitor is designed with a slim, minimalist look. It features ultra-thin bezels, allowing for a near borderless viewing experience. This makes it ideal for dual-monitor setups, as you can position screens side by side seamlessly. Setting up the monitor is simple, with multiple connectivity options like HDMI and DisplayPort. It also features USB-C compatibility, allowing for fast data transfer and device charging, reducing the need for multiple cables on your desk. This Samsung 4K monitor supports HDR10, providing higher contrast and accurate colors for a richer picture. Its wide viewing angles ensure that the image stays consistent, even when viewed from the side. This is perfect for shared workspaces or group settings. Additionally, the Samsung ViewFinity S7 has advanced eye-care technology. It includes features like Eye Saver Mode and Flicker-Free technology to reduce eye strain during long sessions. Upgrade your workspace or gaming setup with the Samsung ViewFinity S7 Monitor and enjoy stunning visuals. Specifications: Display : 27″ VA Resolution : 4K (3840×2160) HDR10 Refresh Rate : 60Hz Response Rate : 5ms
The Samsung 65″ OLED S95F 4K Vision AI Smart TV | QA65S95FAUXTW is a premium television designed to deliver outstanding picture quality, intelligent processing, and immersive entertainment. It features advanced OLED technology that produces deep blacks, vibrant colors, and exceptional contrast. In addition, the 4K resolution ensures sharp detail and lifelike clarity across movies, sports, games, and streaming content. Samsung powers this TV with its advanced Vision AI processor, and it continuously optimizes picture and sound quality in real time. As a result, content appears sharper and more detailed while maintaining natural colors and balanced brightness. Furthermore, AI upscaling enhances lower-resolution content, bringing it closer to 4K quality for a better viewing experience. The OLED panel delivers precise lighting control at the pixel level, so bright highlights and dark scenes appear with impressive accuracy. Therefore, viewers can enjoy a cinematic experience with exceptional depth and realism. In addition, HDR support enhances dynamic range, making images appear more vibrant and true to life. Samsung’s Tizen Smart TV platform provides quick access to popular streaming services, gaming features, and smart home integration. Meanwhile, the ultra-slim design and minimal bezels create a modern appearance that complements any living space. Overall, the Samsung 65″ OLED S95F 4K Vision AI Smart TV | QA65S95FAUXTW combines premium OLED picture quality, advanced AI-powered enhancements, and smart connectivity. It is an excellent choice for users seeking a high-end home entertainment experience. Specifications: OLED technology delivers deep blacks, vibrant colors, and exceptional contrast Vision AI processor optimizes picture and sound quality in real time 4K resolution provides sharp detail and enhanced visual clarity HDR support improves brightness, contrast, and overall image realism Tizen Smart TV platform offers streaming apps and smart home connectivity
WiWU Minimalist Laptop Handbag – Lightweight, water-resistant bag with soft interior padding, shock protection, and dual compartments.Available in 14″ and 15.6″ sizes, perfect for secure and stylish daily laptop carry. Model: WiWU Minimalist Laptop Handbag Material: Water-resistant polyester exterior with a soft faux-fur padded interior Available Sizes: 14″ and 15.6″ versions to accommodate most laptops Protection: Built-in anti-collision padding and 360° all-around corner protection Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Design Features: Durable YKK zippers, reinforced corners, slim profile Weight: Approx. 703 g (14″), 884 g (15.6″) Use Case: Ideal for work, study, travel, and everyday protection of devices
The ViewSonic VA270-H 27″ FHD 100Hz Monitor delivers smooth and clear visuals for daily work and entertainment. Its Full HD resolution shows sharp text and clean image details. The large 27-inch screen gives more space for multitasking. This helps improve focus and comfort during long work sessions. Moreover, the ViewSonic VA270-H 27″ FHD 100Hz Monitor features a fast 100Hz refresh rate for smoother motion. Scrolling feels softer and more natural. Videos play with less blur and clearer movement. As a result, the viewing experience feels more comfortable. In addition, the monitor uses IPS panel technology for wide viewing angles. Colors stay clear and accurate from all sides. This helps during shared screen use and group work. The image remains bright and stable at every angle. Furthermore, the ViewSonic VA270-H 27″ FHD 100Hz Monitor includes eye comfort features for long daily use. The low blue light mode helps reduce eye strain. The flicker-free design supports long viewing without discomfort. These features protect your eyes during extended screen time. Also, the monitor provides flexible connection options for easy setup. It includes HDMI support for modern devices. You can connect laptops, desktops, and media players with ease. Switching between devices becomes fast and simple. In addition, the slim bezel design gives a clean and modern look. It fits well in both home and office spaces. The stand supports tilt adjustment for better viewing comfort. Wall mounting is also supported for clean desk setups. Moreover, the display works well for office work, browsing, and video streaming. Text appears clear and easy to read. Daily tasks feel more organized and comfortable. The large screen improves workflow and focus. Overall, the ViewSonic VA270-H 27″ FHD 100Hz Monitor offers clarity, smooth motion, and daily comfort. It supports work, study, and entertainment with ease. This monitor is a smart choice for users who want smooth performance and a large display. Specifications: Display : 27″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 100Hz Response Time : 1ms
