Genuine Apple MacBook Pro 16″ (A2141) Retina display assembly—professionally removed from original units and tested for full functionality. Ideal for high-quality repairs with true OEM performance and clarity. Model Compatibility: Fits MacBook Pro 16-inch (2019 model, A2141) only. 100% Original Apple Display: Not a copy or aftermarket part—this is an authentic Apple Retina display assembly carefully pulled from used or refurbished MacBook Pro units. Stunning Retina Display: 16-inch LED-backlit screen with 3072 x 1920 resolution, P3 wide color, True Tone technology, and high brightness for crisp, lifelike visuals. Complete Assembly Included: Comes with front glass, LCD panel, integrated 720p FaceTime HD camera, ambient light sensor, and full bezel—ready for installation. Rigorously Inspected: Each unit is tested for dead pixels, backlight uniformity, color accuracy, and physical condition to ensure reliable performance. “Pulled” Condition: Removed from a genuine MacBook Pro—fully functional with OEM quality, but shows signs of prior use (no cracks or major blemishes). Perfect for Professional Repairs: Trusted by technicians and refurbishers who demand factory-level display quality and compatibility.
Arabic Language Ultra Thin Silicone Keyboard Cover for 2021 2020 MacBook Air 13 Inch A2179 and A2337 Apple M1 Chip (US Layout) with Touch ID Keyboard Accessories Protective Skin (Black) Color Black-Arabic Compatible Devices 2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179)2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179) Material Silicone Special Feature Waterproof, Dust Proof About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing. About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing.
The Mortal T1 Mini is an ultra-compact, budget-friendly Android TV box designed to turn any standard HDMI television into a smart entertainment platform. It features 4K hardware decoding, dual-band Wi-Fi, and a voice-controlled remote, providing a smooth and responsive experience for local IPTV, YouTube, and mainstream streaming applications. ✅ Full Specifications: Model: Mortal T1 Mini 4K Smart Media Player Interface / Connection: Wi-Fi: Dual-Band (2.4GHz / 5GHz) 802.11n Bluetooth: BT 5.0 (Supports wireless remotes, headphones, and controllers) Wired Network: 1 x 10/100Mbps Ethernet LAN Port (Note: Available on standard mini casing configurations) Input/Output Ports: 1 x HDMI Out, USB Ports, 1 x TF/microSD Card Slot, 1 x DC 5V Power Interface / Connection: Wi-Fi: Dual-Band (2.4GHz / 5GHz) 802.11n Bluetooth: BT 5.0 (Supports wireless remotes, headphones, and controllers) Wired Network: 1 x 10/100Mbps Ethernet LAN Port (Note: Available on standard mini casing configurations) Input/Output Ports: 1 x HDMI Out, USB Ports, 1 x TF/microSD Card Slot, 1 x DC 5V Power Performance / Hardware: CPU: Allwinner H313 Quad-Core ARM Cortex-A53 (up to 1.5GHz) (Also distributed in select regional batches with Rockchip quad-core architectures) GPU: Mali-G31 MP2 / Mali-450MP Graphics Engine Resolution Output: Native HDMI 2.0 supporting up to 4K @ 60Hz Video Decode Formats: 4K Ultra HD hardware acceleration decoding including H.265 HEVC, H.264, VP9, and 3D video support High Dynamic Range (HDR): Supports HDR10+, HDR10, and HLG profiles Performance / Hardware: CPU: Allwinner H313 Quad-Core ARM Cortex-A53 (up to 1.5GHz) (Also distributed in select regional batches with Rockchip quad-core architectures) GPU: Mali-G31 MP2 / Mali-450MP Graphics Engine Resolution Output: Native HDMI 2.0 supporting up to 4K @ 60Hz Video Decode Formats: 4K Ultra HD hardware acceleration decoding including H.265 HEVC, H.264, VP9, and 3D video support High Dynamic Range (HDR): Supports HDR10+, HDR10, and HLG profiles Capacity / Memory Options: 2GB RAM + 16GB eMMC Internal Flash Storage (Storage expandable up to 256GB via TF card slot or external USB drive) Material & Build: Durable, matte plastic compact shell engineered with passive thermal management to maintain low operational temperatures Design & Form Factor: Pocket-sized, ultra-light mini layout designed to easily fit behind wall-mounted or desktop televisions Security & Software: Operating System variants run customized, stable Android TV distributions (Android 13 / Android 14) optimized for app longevity, security patch support, and easy layout control Voice Assistant: Includes an ergonomic voice remote control featuring an integrated microphone button for hands-free Google Assistant commands and quick navigation Compatibility: Fully compatible with major applications like YouTube, Netflix, Disney+, Prime Video, various IPTV clients, and Screen Mirroring Cast protocols Dimensions: Approx. 77 x 77 x 12 mm (May vary slightly up to 88 x 88 x 18 mm depending on exact regional shell style) Weight: Approx. 0.25 to 0.35 kg
The MSI MAG 255PXF 24.5″ 300Hz Gaming Monitor is built for competitive gamers. It delivers ultra-fast refresh rates and smooth visuals for an edge in every game. Firstly with a 24.5-inch Full HD IPS panel, this gaming monitor offers vibrant colors and sharp details. The 300Hz refresh rate ensures ultra-smooth gameplay, reducing motion blur and screen tearing. Every movement is displayed with precision, making it perfect for fast-paced games. Furthermore the MSI MAG 255PXF features a 1ms response time, minimizing ghosting and input lag. This ensures every action is instantly reflected on the screen. Whether you’re playing FPS, racing, or eSports games. Moreover with Adaptive Sync technology, the display eliminates screen tearing and stuttering. This provides a seamless visual experience, even during intense gaming sessions. Also the monitor comes with wide viewing angles, ensuring consistent colors from every perspective. Its high color accuracy makes it suitable for content creation and video editing. The MSI MAG 255PXF 24.5″ 300Hz Gaming Monitor is designed for comfort and flexibility. It has an adjustable stand that allows tilt, swivel, and height adjustments. This ensures the best ergonomic setup for long gaming sessions. With multiple connectivity options, including DisplayPort and HDMI, this monitor is compatible with PCs, consoles, and gaming laptops. Plug and play with ease and enjoy lag-free visuals. Finally the monitor also features anti-flicker and low blue light technology, reducing eye strain. This allows you to game for longer without discomfort. In conclusion, the MSI MAG 255PXF 24.5″ 300Hz Gaming Monitor is the perfect choice for serious gamers. With ultra-fast performance, vibrant visuals, and ergonomic design, it provides a competitive edge in every game. Specifications: Display : 24.5″ Rapid IPS Resolution : 1920×1080 FHD Refresh Rate : 300Hz Response Rate : 0.5ms Speaker : 2W x2
The MSI MAG 245F X24 is a 23.8-inch gaming monitor designed for fast and responsive gameplay. It features a Full HD Rapid IPS panel that delivers sharp visuals, accurate colors, and wide viewing angles. Therefore, it is a great choice for competitive gaming and everyday entertainment. The monitor supports a refresh rate of up to 240Hz and a response time as low as 0.5ms GtG. In addition, AMD FreeSync Premium helps reduce screen tearing and stuttering during fast-paced games. As a result, gameplay stays smooth and responsive. The Rapid IPS panel produces vibrant colors with support for 1.07 billion colors and HDR Ready technology. Moreover, the anti-glare screen helps reduce reflections while maintaining clear image quality in different lighting conditions. The monitor includes HDMI and DisplayPort inputs for gaming PCs and consoles. It also supports VESA mounting, allowing flexible installation on monitor arms or wall mounts. In addition, the tilt-adjustable stand helps users find a comfortable viewing angle. The MSI MAG 245F X24 combines a high refresh rate, fast response time, and reliable image quality in a compact 23.8-inch design. Therefore, it is well suited for esports players and anyone seeking a smooth gaming experience. Specifications: Display: 23.8-inch Rapid IPS, 1920 × 1080 (Full HD) Refresh Rate: Up to 240Hz Response Time: 0.5ms GtG (Minimum) Adaptive Sync: AMD FreeSync Premium with HDR Ready Connectivity: 2 × HDMI 2.0b, 1 × DisplayPort 1.2a, 1 × Headphone Out
The Cudy WR1200 AC1200 Router offers flexible networking with its 5-in-1 functionality and dual-band WiFi speeds up to 1200Mbps. Ideal for home and office use, it provides stable connectivity, wide coverage, and multiple operating modes to suit different network needs. AC1200 Dual Band WiFi – Combined speeds of up to 1200Mbps (300Mbps on 2.4GHz + 867Mbps on 5GHz) for smooth browsing, streaming, and gaming. 5-in-1 Multi-Mode Functionality – Works as Router, Access Point, Range Extender, WISP, and Client for maximum flexibility. Wide Coverage – High-gain antennas ensure strong and stable WiFi signal throughout your home or office. Fast Ethernet Ports – Reliable wired connections for computers, smart TVs, and other devices. Easy Setup & Management – Simple configuration through an intuitive web interface. Stable Multi-Device Performance – Designed to handle multiple connected devices efficiently. Secure Network – WPA/WPA2 encryption keeps your connection safe and private. 1 × WAN Port 4 × LAN Ports Dual Band WiFi (2.4GHz & 5GHz) Ethernet (RJ45) Wireless Security (WPA/WPA2)
Replacement cable for MacBook Pro A2794, designed to restore proper connection and functionality for damaged or faulty internal cables. Ideal for technicians and repair shops, ensuring reliable performance and correct fit for A2794 models. Type: USB-C to USB-C charging/data cable Model: A2794 Length: 2 meters (≈ 6.6 ft) Color: White Design: Woven braided cable for durability Connectors: USB-C (Male) on both ends Power Delivery: Supports up to 240 W high-power charging when used with a compatible USB-C PD adapter Data Transfer: USB 2.0 transfer speeds Designed for fast charging and syncing between USB-C devices
The ViewSonic VX2476-smhd 24″ 75Hz Monitor offers stunning visuals and smooth performance for both work and play. Its sleek and modern design adds a touch of elegance to any workspace. With a 24-inch Full HD display, the ViewSonic VX2476-smhd delivers crisp and vibrant images. Whether you’re watching movies, editing photos, or browsing the web, you’ll enjoy a clear and immersive viewing experience. The 75Hz refresh rate ensures smooth and fluid motion, reducing screen tearing and stuttering. This makes the ViewSonic VX2476-smhd perfect for gaming and fast-paced videos, providing a seamless experience. Designed with an ultra-thin bezel, the ViewSonic VX2476-smhd maximizes screen space and minimizes distractions. This makes it ideal for multi-monitor setups, allowing you to expand your workspace effortlessly. The ViewSonic VX2476-smhd features advanced IPS technology, ensuring accurate and consistent colors from every angle. This is perfect for collaborative work and shared viewing experiences, as everyone sees the same high-quality image. Connectivity is simple and versatile with the ViewSonic VX2476-smhd. It includes HDMI, DisplayPort, and VGA inputs, making it compatible with a wide range of devices, from computers to gaming consoles. In conclusion, the ViewSonic VX2476-smhd 24″ 75Hz Monitor combines stunning visuals, smooth performance, and sleek design for an exceptional viewing experience. Upgrade to the ViewSonic VX2476-smhd today and transform your digital world. Specifications: Display : 24″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Rate : 4ms
Late 2019 Apple MacBook Pro with 2.4GHz Intel Core i9 (16 inch, 16GB, 1TB SSD) 4GB AMD Radeon Pro 5500M Space Gray
The Dell Latitude 5410 is a dependable, enterprise-grade 14-inch business laptop built for smooth multitasking and daily office productivity. Powered by a 10th Generation Intel Core i5 processor and fast SSD storage, this pre-owned Grade-B unit offers excellent performance value with minor, visible cosmetic wear on the outer chassis.
The MSI PRO MP275Q 27″ 100Hz Business Monitor is built for productivity, comfort, and performance in both work and study environments. With a 27-inch QHD display, it delivers sharper images and more screen space compared to standard Full HD monitors. Moreover, the thin bezels create a modern look and allow for seamless multi-monitor setups. Because eye health is important, this monitor includes TÜV-certified low blue light and flicker-free technology. As a result, it reduces strain during long working hours. In addition, the ergonomic tilt adjustment ensures a comfortable viewing position throughout the day. The MSI PRO MP275Q 27″ 100Hz Business Monitor provides smooth visuals with its 100Hz refresh rate. Furthermore, AMD FreeSync support minimizes screen tearing, making video playback and light gaming more fluid. Therefore, it suits professionals who want a monitor that balances work efficiency with entertainment. Connectivity is flexible with HDMI and DisplayPort options, allowing easy connection to PCs, laptops, and other devices. Besides that, its built-in speakers deliver clear audio, reducing the need for external accessories. Not only does it excel in performance, but it is also VESA mount compatible, giving you more setup flexibility. In short, the MSI PRO MP275Q 27″ 100Hz Business Monitor combines visual clarity, smooth performance, and practical features, making it an excellent choice for offices and home setups alike. Specifications: Display : 27″ IPS Screen : FHD (2560×1440) Refresh Rate : 100Hz Response Rate : 1ms (MPRT) / 4ms (GtG)
Used OEM Original Apple Logic Board Working, A1706 Late 2016 Mode 3.3 GHz i7 256gb 16gb RAM Tested using latest industry hardware diagnostic software, Fresh pull from full unit.
Genuine-spec touchpad flex cable for MacBook Pro 16″ (Model A2159, 2019, Intel)—essential for restoring full Force Touch functionality, haptic feedback, and precise trackpad responsiveness during repair or replacement. Compatible With: MacBook Pro 16-inch (2019, Model A2159) with Intel Core i7/i9 processors (Model Identifier: MacBookPro16,1). Part Type: Touchpad flex cable only—does not include the trackpad, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits touch input, Force Touch pressure data, and haptic feedback signals—critical for macOS gestures (e.g., Force Click, three-finger swipe, pinch-to-zoom) and Taptic Engine operation. OEM-Quality Build: Matches Apple’s original flex circuit in length, connector pitch, shielding, and bend radius—ensures reliable signal integrity and durability under repeated use. Common Use Cases: Replacing a torn, frayed, or corroded original flex cable Completing a trackpad replacement when the original cable is damaged Fixing intermittent or unresponsive trackpad behavior caused by cable failure Replacing a torn, frayed, or corroded original flex cable Completing a trackpad replacement when the original cable is damaged Fixing intermittent or unresponsive trackpad behavior caused by cable failure Installation Note: Requires full bottom case removal and careful routing beneath the battery and logic board. Connectors use ZIF (Zero Insertion Force) sockets—must be properly aligned and latched without force. Recommended for certified or experienced technicians only.
The ViewSonic VX2479-HD-PRO is a 24-inch monitor designed to deliver stunning visuals and smooth performance for gaming, work, or entertainment. Whether you’re streaming videos, editing documents, or playing your favorite games, this monitor ensures vibrant colors and sharp details. Featuring a Full HD resolution of 1920×1080 pixels, the ViewSonic VX2479 provides crystal-clear image quality. You can enjoy a high-definition viewing experience that brings your movies, games, and content to life. This monitor comes equipped with an IPS panel, which offers wide viewing angles and consistent color reproduction. Whether you’re looking at the screen from the side or straight on, the picture quality remains bright and accurate. The ViewSonic VX2479-HD-PRO also supports a 75Hz refresh rate, ensuring smooth and fluid visuals. This makes it ideal for fast-paced gaming and action-packed scenes, reducing motion blur and providing a more enjoyable experience. With multiple connectivity options, including HDMI and DisplayPort, the ViewSonic VX2479 offers easy connections to your PC, gaming console, or other devices. Switching between work and play is quick and hassle-free. Designed with a sleek, frameless design, this monitor adds a modern touch to any workspace or gaming setup. It is lightweight and easy to set up, making it perfect for both home and office use. In conclusion, the ViewSonic VX2479-HD-PRO offers a stunning blend of sharp visuals, vibrant colors, and smooth performance. Upgrade your setup with this versatile monitor and experience high-quality viewing for work and play. Specifications: Resolution : FHD Display : 24″ IPS Refresh Rate : 180Hz Response Time : 1ms
The Samsung 75″ Crystal UHD U8000F 4K Smart TV UA75U8000FUXTW uses a 75-inch LCD panel with 3840 × 2160 resolution. It is a basic 4K TV focused on screen size, standard image processing, and everyday smart features. It uses the Crystal Processor 4K for image processing and upscaling. This system converts lower-resolution content into closer-to-4K output. It also supports HDR10 and HDR10+, which adjust contrast between bright and dark areas for compatible content. The panel runs at a native 60 Hz refresh rate. Motion Xcelerator is included to reduce blur during fast scenes such as sports and gaming. Samsung Tizen OS powers the smart platform. It provides access to streaming apps, web browsing, and SmartThings connectivity. It also supports voice control depending on region and setup. Connectivity includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. It supports Auto Low Latency Mode (ALLM) for basic console gaming. This model does not include local dimming or advanced display systems. It focuses on standard 4K performance and basic smart TV functionality for general use. Specifications: 75-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 to take your gaming to the next level? Look no further than the LG 27″ 165Hz UltraGear monitor. This powerhouse display is your ticket to an immersive and smooth gaming experience. First and foremost, let’s talk about speed. With a blazing-fast 165Hz refresh rate, this monitor ensures buttery-smooth gameplay, free from motion blur or screen tearing. Get ready to react quicker and gain a competitive edge in every game. Transitioning to visuals, prepare to be amazed by the stunning clarity and vibrant colors of the UltraGear monitor. With a crisp 27-inch display and high-resolution capabilities, every detail pops off the screen, immersing you in your favorite games like never before. Moreover, the monitor’s advanced IPS panel technology ensures wide viewing angles and consistent color accuracy, so you can enjoy stunning visuals from any angle without distortion. But that’s not all – the UltraGear monitor is also packed with features to enhance your gaming experience. From customizable gaming modes to built-in crosshair overlays, it offers everything you need to optimize your gameplay to your preferences. Additionally, with support for HDR content, you can enjoy breathtaking visuals with enhanced contrast and brightness, bringing your games to life with stunning realism. In conclusion, the LG 27″ 165Hz UltraGear monitor is the ultimate gaming companion for enthusiasts seeking unparalleled performance and immersion. Elevate your gaming setup with this powerhouse display and experience gaming like never before. Specifications: Display : 27″ IPS Resolution : QHD (2560 x 1440) Refresh Rate : 165Hz Response Rate : 1ms GTG
MSI MAG 272UP QD-OLED X24 is a premium 27-inch gaming monitor designed for competitive gaming, content creation, and immersive entertainment. It features a 4th-generation QD-OLED panel with 4K UHD resolution (3840 × 2160), delivering exceptional image quality, deep blacks, and vibrant colors. The monitor offers an ultra-fast 240Hz refresh rate and a 0.03ms GtG response time for incredibly smooth gameplay and minimal motion blur. Therefore, it is ideal for fast-paced esports titles and AAA gaming experiences. It supports both NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro technologies to reduce screen tearing and stuttering. In addition, VESA DisplayHDR True Black 400 certification enhances contrast and HDR performance for more realistic visuals. The monitor delivers outstanding color accuracy with 99% DCI-P3 coverage, 98% Adobe RGB coverage, and Delta E ≤ 2 calibration. Moreover, MSI OLED Care 2.0 technology helps reduce the risk of image retention and burn-in. Connectivity includes HDMI 2.1, DisplayPort 1.4a, and USB Type-C with DisplayPort Alt Mode and 15W Power Delivery. As a result, it provides excellent compatibility with gaming PCs, laptops, PlayStation 5, and Xbox Series X consoles. Specifications: 27-inch 4K UHD QD-OLED display 240Hz refresh rate for ultra-smooth gaming 0.03ms GtG response time G-SYNC Compatible and FreeSync Premium Pro DisplayHDR True Black 400 with OLED Care 2.0
The Samsung S27D300 is a 27-inch monitor designed to deliver clear and vibrant visuals for both work and entertainment. With a Full HD resolution of 1920 x 1080 pixels, it ensures sharp and detailed images. The monitor features an IPS panel, providing consistent and accurate colors across wide viewing angles. Its 100Hz refresh rate offers smoother motion, reducing blur during fast-paced scenes. The monitor supports 16.7 million colors, ensuring accurate color reproduction. Connectivity options include one HDMI port and one VGA (D-Sub) port, allowing compatibility with various devices. It also features tilt adjustment, enabling users to find a comfortable viewing angle. In terms of power consumption, the monitor uses approximately 25W during typical operation. It operates within a voltage range of 100 – 240 V at 50 – 60 Hz. Measuring 24.1 inches in width, 7.9 inches in depth, and 18.5 inches in height with the stand, the monitor weighs 6.4 pounds. Without the stand, it measures 24.1 inches in width, 1.4 inches in depth, and 14.2 inches in height. The Samsung S27D300 is a reliable choice for users seeking a monitor that balances performance and affordability, suitable for both home and office use. Specifications: Display : 27″ Resolution : 1920 x 1080 FHD Refresh Rate : 100Hz Response Rate : 5ms
The MSI Modern MD2412P 24″ 100Hz Monitor is the perfect choice for work and entertainment. It offers a smooth and immersive viewing experience with a 100Hz refresh rate. This monitor ensures sharp visuals and fluid motion. With a 24-inch Full HD display, the MSI Modern MD2412P delivers clear and vibrant colors. The IPS panel provides wide viewing angles, making it great for multitasking. Whether you’re working, watching movies, or gaming, the visuals stay sharp and consistent. The 100Hz refresh rate makes scrolling and animations smoother. This reduces eye strain and improves productivity. Fast-moving visuals are more fluid, which is great for casual gaming and video editing. Setting up the MSI Modern MD2412P 24″ 100Hz Monitor is simple. It comes with an ergonomic stand that allows height, tilt, and swivel adjustments. You can easily find the most comfortable viewing position for long hours of use. Connectivity is easy with multiple ports, including HDMI and DisplayPort. This allows you to connect to laptops, desktops, and gaming consoles effortlessly. It ensures a stable and reliable connection for all your devices. The monitor also features eye-care technology, reducing blue light and flicker. This helps prevent eye fatigue, making it perfect for extended use. Whether you’re working from home or gaming, your eyes will stay comfortable. The MSI Modern MD2412P 24″ 100Hz Monitor combines style and performance. Its modern and slim design fits well in any workspace. The minimal bezels offer a sleek look and maximize screen space. Upgrade your setup with this reliable and stylish monitor today. Specifications: Display : 23.8″ IPS Screen : FHD (1920×1080) Refresh Rate : 100Hz Response Rate : 1ms
