Replacement DC in Power Jack Connector I/O USB-C Board Charging Port Compatible with MacBook Pro 13" 15" 16" Model A1989 A1990 A2141 A2159 A2251 A2289 A2338 Mid 2018-2020 Replacement DC in Power Jack Connector I/O USB-C Board Charging Port Compatible with MacBook Pro 13″ 15″ 16″ Model A1989 A1990 A2141 A2159 A2251 A2289 A2338 Mid 2018-2020 About this item If your USB-C ports aren’t functioning properly, replacing this board is a good place to start. These are also referred to as Thunderbolt 3 ports. Please double-check the pictures and model numbers to see if they fit your laptop to avoid buying mistakes. Package: 1PCS Type-C/USB-C DC Power Jack I/O Board. We are committed to providing a better shopping experience for our customers, if you have any questions, you can always contact us.
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1706 – 2017 and A1989 – 2018/2019)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15″ (2017) – Model A1706 (Model Identifier: MacBookPro14,3) MacBook Pro 15″ (2018–2019) – Model A1989 (Model Identifier: MacBookPro15,2) ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. MacBook Pro 15″ (2017) – Model A1706 (Model Identifier: MacBookPro14,3) MacBook Pro 15″ (2018–2019) – Model A1989 (Model Identifier: MacBookPro15,2) ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. ✅ Note: Apple used the same trackpad assembly and flex cable across both A1706 and A1989 15″ models—making this part interchangeable between them. Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable connecting 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 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.
Used, original 35 W USB-C charger for Mac — reliable Apple power adapter (dual USB-C) for charging your Mac and other devices. This is an authentic Apple 35 W USB-C power adapter (dual-port) — used but tested. It’s built to charge MacBooks, iPhones, iPads, and other USB-C devices. Though lower wattage than larger Mac adapters, it works well for light use or supplemental charging. Features & Behavior Dual USB-C ports: can charge two devices simultaneously Intelligent power distribution: if both ports are used, the output splits evenly (~17.5 W each) USB Power Delivery support across standard profiles (5V, 9V, 15V, 20V) Accepts input 100-240V AC, so usable worldwide (with correct plug) Compact form factor in one variant, or standard “duckhead” plug style in another Specifications Strengths & Limitations Pros Authentic Apple unit — safer and more reliable than generic chargers Dual ports give flexibility — charge phone + Mac concurrently Portable and suitable for travel (universal voltage) Cons 35 W is low for MacBook Pro under load — might not maintain charging during heavy use When both ports used, power is halved (~17.5 W each) Used condition may include wear, scuffs, or reduced efficiency
Are you in the market for a reliable monitor that won’t break the bank? Look no further than the ViewSonic VX2719-PC-MHD. In this comprehensive guide, we’ll delve into the key features and advantages of this budget-friendly monitor. The ViewSonic VX2719-PC-MHD offers a stunning 27-inch display, making it perfect for work or play. Its size allows you to enjoy a more immersive visual experience, whether you’re working on a project or streaming your favorite movies. One of the key benefits of this monitor is its Full HD resolution, which ensures that your content appears sharp and clear. Whether you’re editing photos, watching videos, or browsing the web, you’ll appreciate the vivid visuals this monitor delivers. Furthermore, the ViewSonic VX2719-PC-MHD boasts a rapid response time, reducing motion blur during fast-paced games or action-packed movie scenes. This makes it an ideal choice for both gamers and casual users. Connectivity is a breeze with this monitor, thanks to its HDMI and VGA inputs. You can effortlessly connect it to your computer, gaming console, or other devices without any hassle. In terms of setup, the ViewSonic VX2719-PC-MHD is designed with user-friendliness in mind. It comes with an easy-to-follow manual, and the on-screen menu is straightforward, allowing you to customize your display settings without any confusion. 3 years warranty MANUFACTURERS LINK YOU CAN ALSO CHECK HERE Specifications: 240Hz refresh rate for smooth gameplay 1ms (MPRT) response time for precision 1500R Curved screen for immersive visuals AMD FreeSync Premium prevents screen tearing Full HD resolution for rich detail VX2719-PC-MHD
7CJRC Laptop Battery for Dell Latitude 7470 7270 E7270 E7470 Series 21X15 021X15 KNM09 0KNM09 TX283 0TX283 451-BBSW 451-BBWR 11.4V 42Wh 3-Cell About this item Battery type: Li-ion; Voltage: 11.4V; Capacity: 42Wh; Cells: 3-cell Compatible Models: Fit for Dell Latitude 7470 7270 E7470 E7270 Series Replace Part Numbers: 7CJRC KNM09 0KNM09 21X15 021X15 TX283 0TX283 451-BBSW 451-BBWR V6VMN 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. The actual operation time will depend on how much electricity is required by the device and how you use it
Philips 221V8LB/67 22-inch Full HD monitor delivers clear and reliable performance for everyday computing. It focuses on sharp visuals, eye comfort, and simple connectivity for home and office use. Additionally, it features a 21.5-inch VA panel with Full HD resolution (1920 × 1080). This provides clear detail and strong contrast, so it improves readability and general viewing comfort. Moreover, it supports up to a 100Hz refresh rate (overclocked) with smooth visual output. As a result, it reduces flicker and makes scrolling and video playback more fluid. The monitor includes a 4ms response time (GtG). Therefore, it handles everyday motion smoothly for browsing, office work, and media use. In addition, it comes with Adaptive Sync support. This helps reduce screen tearing for more stable visuals during dynamic content. Furthermore, it includes LowBlue Mode and Flicker-Free technology. So it reduces eye strain during long hours of use. It also provides HDMI and VGA connectivity with a slim, tilt-adjustable design. This ensures compatibility with modern and older devices while keeping setup simple. Philips 221V8LB/67 22-inch Full HD monitor delivers reliable performance, comfortable viewing, and essential features for daily productivity. Specifications: 21.5-inch VA panel with Full HD 1920 × 1080 resolution Up to 100Hz refresh rate for smoother visuals 4ms GtG response time for stable motion Adaptive Sync support for reduced tearing LowBlue Mode and Flicker-Free eye comfort technology
AOC U32V11N 31.5-inch 4K monitor delivers ultra-clear visuals and large screen workspace for productivity and media use. It focuses on high resolution, strong contrast, and comfortable long-term viewing. Additionally, it features a 31.5-inch VA panel with 4K UHD resolution (3840 × 2160). This resolution provides very fine detail and more screen space, so it improves multitasking and content clarity. Moreover, it supports a 60Hz refresh rate with 4ms GtG response time. As a result, it delivers stable performance for office work, design, and general use. The monitor offers a high 3500:1 contrast ratio with HDR10 support and 10-bit color. Therefore, it enhances color depth and improves brightness and dark scene detail. In addition, it includes Picture-by-Picture and Picture-in-Picture modes. These features allow multiple input sources on one screen, so multitasking becomes more efficient. Furthermore, it includes Low Blue Mode and Flicker-Free technology. So it reduces eye strain during long working hours. The design features a three-sided frameless layout with HDMI 2.0 and DisplayPort 1.4 connectivity. It also supports VESA mounting for flexible setup options. AOC U32V11N 31.5-inch 4K monitor provides sharp visuals, strong contrast, and productivity-focused features for everyday professional use. Specifications: 31.5-inch VA panel with 3840 × 2160 4K UHD resolution 60Hz refresh rate with 4ms GtG response time HDR10 support with 10-bit color depth 3500:1 contrast ratio for deeper blacks and detail PIP and PBP multitasking with HDMI and DisplayPort connectivity
Logitech C270 HD webcam — 720p USB camera with built-in mic and automatic light correction. Solid pick for video calls, remote work, or basic streaming. This is the Logitech C270 HD Webcam, a budget plug-and-play USB camera suited for everyday video calls. It doesn’t strive for professional streaming quality, but it reliably handles meeting needs, student calls, or backup cam duties. Key Features & Functionality Records video in HD 720p at 30 fps Fixed focus lens (no autofocus) Built-in mono microphone with noise reduction (captures voice clearly in standard environments) Automatic light correction (RightLight / similar tech) to adjust in low or uneven lighting Universal mounting clip: works on laptop lids, monitors, or can sit on a shelf USB 2.0 interface, 1.5 m (≈ 5 ft) cable length Technical Specifications Strengths & Limitations Pros: Reliable and easy to set up: plug and play Good for video calls in decent lighting Noise suppression in mic helps reduce background hiss Affordable alternative if your built-in camera fails Cons: Only 720p — not ideal for high quality streaming Fixed focus — manual adjusting can’t zoom/focus No privacy shutter (you may need stickers or external cover) Color and sharpness aren’t top tier under weak light
Remax F21 Ruiyal Series – Oscillating water‑cooling fan with 4,000 mAh battery, digital display, and 6 wind levels.Portable and stylish small-table fan with 3 oscillation modes and mist spray cooling. Model: Remax F21 Ruiyal Series Water‑Cooling Oscillating Fan (White) Battery & Power: Built‑in 4,000 mAh battery; USB‑C rechargeable (details unspecified) Cooling Method: Water‑cooling spray system with turbine-style fan blades Wind Speed: 6 adjustable speed levels Oscillation: 3 movement modes—approx. 45°, 90°, or 120° Display & Controls: Digital display showing mode, speed, and battery indicators Dimensions & Weight: Compact tabletop size, ~868 g Power Consumption: Around 8W rated power
Looking to enhance your visual experience? The AOC 22B3HM 21″ 75Hz Monitor is here to elevate your viewing pleasure. With its sleek design and impressive features, it’s the perfect addition to any setup. First and foremost, let’s talk about clarity. The AOC 22B3HM boasts a vibrant 21-inch display that delivers crisp and clear visuals. Whether you’re watching movies, browsing the web, or gaming, every detail will pop with vividness. Transitioning to performance, this monitor offers a smooth and seamless viewing experience with its 75Hz refresh rate. Say goodbye to motion blur and hello to fluid motion, whether you’re scrolling through content or gaming. Moreover, its slim bezel design provides an immersive viewing experience, allowing you to focus entirely on the content at hand. Get ready to dive into your favorite movies and games like never before. In addition, the monitor’s adjustable stand offers ergonomic comfort, allowing you to find the perfect viewing angle for extended use. Say goodbye to neck strain and hello to comfortable viewing for hours on end. Furthermore, with multiple connectivity options, including HDMI and VGA ports, the AOC 22B3HM ensures compatibility with a wide range of devices. Connect your gaming console, PC, or laptop effortlessly and enjoy your content in style. In conclusion, the AOC 22B3HM 21″ 75Hz Monitor is a game-changer in the world of displays. With its stunning visuals, smooth performance, and ergonomic design, it’s the perfect choice for anyone looking to enhance their viewing experience. Upgrade your setup today and immerse yourself in the world of vibrant visuals. Check out other option here! Specifications: Display : 21.5″ VA Resolution : 1920 x 1080 (FHD) Refresh Rate : 75Hz Response Rate : 4ms
BenQ RE6504 65” 4K UHD Interactive Flat Panel with Android 13 is a large interactive display designed for classrooms, meeting rooms, and training environments. It combines a 4K touchscreen, built-in Android system, and collaboration tools for interactive presentations. It features a 65-inch IPS panel with 3840 × 2160 (4K UHD) resolution. Therefore, it delivers sharp visuals and wide viewing angles for group interaction. In addition, it supports up to 40-point touch input for multi-user collaboration and writing. Moreover, the panel runs Android (EDLA certified, Android 14/13 depending on region) with built-in apps and Google services support. As a result, users can install apps, browse content, and run teaching or presentation tools directly on the display without an external PC. The RE6504 uses precision IR touch technology. Therefore, it provides fast and accurate writing with low delay. In addition, it includes anti-glare and tempered 9H glass for durability and better visibility in bright rooms. Furthermore, it includes multiple connectivity options such as HDMI, USB, USB-C, OPS slot, and LAN. As a result, it supports laptops, media players, and modular PC systems for flexible installation. It also includes built-in speakers and collaboration software tools. Therefore, it supports presentations, whiteboarding, screen sharing, and remote teaching or meeting scenarios. Finally, the BenQ RE6504 delivers a large 4K interactive workspace with Android integration, multi-touch control, and strong connectivity for education and business use. Specifications: Display: 65-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch for collaboration System: Built-in Android (EDLA support with Google services) Glass: Anti-glare 9H tempered glass for durability Connectivity: HDMI, USB, USB-C, OPS slot, and LAN support
The ViewSonic VG1655 16″ Portable Monitor is a game-changer for those who need a secondary screen on the go. Whether you’re a digital nomad, a student, or a professional, this portable monitor enhances your productivity and entertainment experience. Firstly this 16″ portable monitor features a Full HD 1080p resolution, delivering sharp and vibrant visuals. From editing documents to watching videos, every detail is clear and crisp on the ViewSonic VG1655. Furthermore designed for portability, the ViewSonic VG1655 is lightweight and slim. It easily fits into your bag, making it an ideal travel companion. Set up is a breeze with the built-in kickstand, allowing you to adjust the screen to your preferred angle. The ViewSonic VG1655 offers versatile connectivity options. With USB-C and Mini HDMI ports, you can connect your laptop, smartphone, or gaming console. This ensures compatibility with a wide range of devices, making it a versatile addition to your tech arsenal. For those who work on the go, the ViewSonic VG1655 features a blue light filter and flicker-free technology. These features help reduce eye strain, allowing you to work comfortably for longer periods. In addition to its impressive display and portability, the ViewSonic VG1655 also boasts robust build quality. The durable design ensures that this portable monitor can withstand the rigors of travel and daily use. In conclusion, the ViewSonic VG1655 16″ Portable Monitor combines portability, high-quality visuals, and versatile connectivity for an unmatched on-the-go experience. Upgrade to the ViewSonic VG1655 today and take your productivity and entertainment to the next level. Specifications: Display : 16″ IPS Resolution : FHS 1920×1080 Refresh Rate : 60Hz Response Rate : 6.5ms Interface : USB-C
BenQ Board Essential Series 75 inch RE7504FV is designed for classrooms, meeting rooms, and interactive collaboration. It features a 75-inch 4K UHD IPS display with precision IR touch technology for smooth writing and presentations. Additionally, it supports up to 40 touch points. Therefore, it improves teamwork, teaching, and interactive learning experiences. The BenQ RE7504FV delivers 3840 × 2160 resolution with 450 nits brightness and anti-glare protection for clear visibility in bright environments. Moreover, it uses 9H tempered glass for durability and safer daily use. It also includes low blue light and flicker-free technology to reduce eye strain. In addition, it runs Android 14 (EDLA) with strong memory and storage options for smooth performance. Furthermore, it provides wide connectivity including HDMI 2.0, DisplayPort, USB-A, USB-C with 65W power delivery, VGA, and OPS slot support. As a result, users can easily connect laptops, cameras, and external systems. It also includes an 8-microphone array and dual 20W speakers for clear audio in meetings and lessons. Specifications: 75-inch 4K UHD (3840 × 2160) IPS display Precision IR touch with up to 40 touch points Android 14 (EDLA) with smooth system performance 450 nits brightness with anti-glare 9H tempered glass USB-C 65W, HDMI, OPS slot, mic array, and dual 20W speakers
Its 31.5″ Rapid VA panel features a 1500R curve for immersive visuals. Plus, Dual‑Mode lets you switch between 4K@160 Hz or FHD@320 Hz resolution easily. Also, the monitor offers a fast 0.5 ms GtG response time to reduce blurring. Because of AMD FreeSync Premium, gameplay stays tear‑free and smooth. Moreover, VESA DisplayHDR 400 enhances contrast and color accuracy. It covers 97 % DCI‑P3, 93 % Adobe RGB, and 136 % sRGB for vivid colors. With HDR and AI Vision tech, dark scene details become clear. Also, it supports HDMI CEC, PIP, and PBP for multi‑device setups. Furthermore, ports include DP 1.4a, two HDMI 2.1, and USB‑C with 15 W PD. Also, anti‑flicker and low‑blue‑light tech reduce eye strain over long sessions. Plus, the frameless design gives a sleek look to your setup. The ergonomic stand adjusts tilt and height up to 130 mm. Moreover, headphone‑out jack adds audio convenience. Because of dual‑mode, you choose either crisp 4K or ultra‑fast FHD. Gamers love the 320 Hz FHD mode for competitive play. Also, movie and design work shine in 4K HDR mode. Additionally, AI Dual‑Mode auto‑switches resolution and refresh rate. Furthermore, build quality feels solid with metal stand and VESA mount. Also, cable routing is tidy despite downward ports. Thus, the MSI MAG 321CUPDF suits high‑end gaming and creative workflows. Upgrade today to enjoy ultra‑fast refresh, vivid visuals, and smooth gameplay. Specifications: Display : 31.5″ Rapid VA Resolution : 3840 x 2160 (UHD) / 1920 x 1080 (FHD) Curvature : 1500R Refresh Rate : 160Hz / 320Hz Response Rate : 0.5ms (GTG)
HP 17A Black Toner Cartridge | Works with HP LaserJet Pro M102 Series, HP LaserJet Pro MFP M130 Series | CF217A
HP P24q G4 QHD Height Adjust Monitor Are you seeking a monitor that can elevate your workstation’s comfort and productivity? Meet the HP P24q G4 QHD Height Adjust Monitor, a versatile solution designed to meet your needs. One of the key features of the HP P24q G4 is its Quad High Definition (QHD) display. With four times the resolution of standard HD, you’ll experience stunning clarity and detail in your work and entertainment. The 24-inch screen size strikes a perfect balance, providing enough space for multitasking without taking up excessive desk space. It’s a comfortable and functional addition to any workspace. Adjusting the monitor to your preferred height is effortless, thanks to its height-adjustable stand. This allows you to tailor your viewing angle for maximum comfort, reducing strain during extended work hours. Setting up the P24q G4 is a straightforward process. Connect it to your PC or laptop through standard ports, and you’re ready to enhance your workspace. Say goodbye to complicated installation procedures. The monitor’s modern design not only complements your workspace but also adds a touch of sophistication. It blends seamlessly with your existing setup, enhancing the overall aesthetics. Whether you’re a professional or a casual user, the HP P24q G4 offers fantastic value for your investment. Its affordable price point ensures that you can enjoy top-notch features without breaking the bank. Specifications: 60.45 cm (23.8″) QHD (2560 x 1440) Asset control; Language selection; On-screen controls; Pivot rotation; Plug and Play; User controls; Anti-glare Response time: 5ms GtG (with overdrive) HDMI; VGA
The MSI G274F 27″ Gaming Monitor delivers smooth visuals with a 180Hz refresh rate and FHD resolution. It ensures responsive gameplay for fast-paced titles. Moreover, its IPS panel provides accurate colors and wide viewing angles. This allows consistent image quality from different positions. The monitor supports Adaptive Sync to reduce screen tearing and stuttering. This feature enhances fluidity during high-speed gaming sessions. It also includes ergonomic adjustments like tilt, swivel, and height options. Cable management is integrated to keep your desk organized. With low blue light and anti-flicker technology, it minimizes eye strain for long gaming or work sessions. The MSI G274F 27″ Gaming Monitor is ideal for users seeking smooth visuals, accurate colors, and responsive gameplay. Specifications: 27″ FHD IPS panel with accurate colors and wide viewing angles 180Hz refresh rate for fluid and responsive gaming Adaptive Sync support to reduce screen tearing Ergonomic adjustments with tilt, swivel, and height options Low blue light and anti-flicker technology for eye comfort
Are you seeking a more immersive and intuitive computing experience? Look no further than the ViewSonic 22” IR Touch Monitor. This cutting-edge display redefines interaction with its seamless touch functionality. Let’s start with responsiveness. The IR touch technology ensures swift and accurate touch responses, making navigation a breeze. Whether you’re scrolling through documents or playing interactive games, every touch is effortlessly detected. Additionally, the monitor’s sleek design and compact size make it perfect for any workspace. Its slim bezel and adjustable stand provide versatility, allowing you to customize your viewing angle for maximum comfort. Transitioning to visuals, prepare to be captivated by vibrant colors and sharp details. The Full HD resolution delivers crisp images, whether you’re watching movies, browsing photos, or working on creative projects. Furthermore, the monitor’s anti-glare coating reduces reflections, ensuring clear visibility even in brightly lit environments. Say goodbye to distracting glare and hello to uninterrupted viewing pleasure. Moreover, connectivity options such as HDMI and VGA ensure compatibility with a wide range of devices, from laptops to gaming consoles. Seamlessly switch between tasks or devices with ease, enhancing productivity and convenience. In conclusion, the ViewSonic 22” IR Touch Monitor offers an unparalleled touch experience. With its responsive touch technology, stunning visuals, and versatile design, it’s the perfect addition to any home or office setup. Upgrade your interaction today and discover a new level of computing convenience. Specifications: Display : 22″ Panel Type : TN Resolution : 1920×1080 FHD Response Time : 5ms Refresh Rate : 75Hz
Are you in search of a high-performance gaming monitor? Look no further! The MSI MPG 274URF QD 27″ 160Hz gaming monitor is here to elevate your gaming experience. This monitor combines cutting-edge technology with sleek design to provide an unbeatable gaming setup. Firstly, let’s talk about the impressive display. The 27-inch screen size offers ample viewing space, making every detail pop. The Quantum Dot technology ensures vibrant and accurate colors, enhancing the overall visual experience. In addition, the 160Hz refresh rate is a game-changer. It ensures smooth and fluid motion, reducing blur and lag. This is essential for fast-paced games where every millisecond counts. With the MSI MPG 274URF QD, you can stay ahead of the competition. Moreover, the 1ms response time minimizes input lag. This allows for quick reactions and precise movements, crucial for competitive gaming. Every action you take will be instantaneously reflected on the screen, providing a seamless gaming experience. Furthermore, this gaming monitor supports HDR, delivering stunning contrast and brightness. You will enjoy deeper blacks and brighter whites, bringing your games to life. The detailed shadows and highlights will immerse you in the game world like never before. Comfort is also a key feature of the MSI MPG 274URF QD. The ergonomic design allows you to adjust the height, tilt, and swivel to find the perfect viewing angle. This ensures you can game comfortably for hours without straining your neck or eyes. Additionally, the monitor comes with multiple connectivity options. Easily connect your PC, console, or other devices with the available HDMI, DisplayPort, and USB ports. This versatility makes it a great addition to any gaming setup. In conclusion, the MSI MPG 274URF QD 27″ 160Hz gaming monitor offers superior performance and stunning visuals. Whether you’re a casual gamer or a professional, this monitor will enhance your gaming experience. Upgrade your setup today and enjoy the best in gaming technology! Specifications: Display : 27″ Rapid IPS Resolution : 3840×2160 (UHD) Refresh Rate : 160Hz Response Rate : 0.5ms
