The ViewSonic XG2409 24″ 180Hz Gaming Monitor is built for smooth and responsive gaming performance. With a fast 180Hz refresh rate, it delivers fluid visuals and reduced motion blur, ideal for action-packed games. Its 1ms MPRT response time ensures clear images with minimal ghosting or lag. The SuperClear® IPS panel offers rich colors and wide viewing angles, making every scene vivid and immersive. The ViewSonic XG2409 24″ 180Hz Gaming Monitor features AMD FreeSync™ support, which helps prevent screen tearing and stuttering during gameplay. HDR10 support boosts contrast and detail, offering more lifelike visuals. The Full HD resolution (1920 x 1080) produces sharp and detailed images for gaming, movies, and work. With 250 nits brightness and a 1,000:1 contrast ratio, it maintains clarity even in brighter environments. Connectivity is simple with two HDMI 1.4 ports and one DisplayPort 1.2, giving you flexibility with multiple devices. It also includes a 3.5mm audio output for easy audio integration. Designed with comfort in mind, the monitor stand is adjustable for height, tilt, swivel, and pivot, helping you find the perfect viewing angle. It also supports VESA mounting for custom setups. The anti-glare coating helps reduce screen reflections, making it easier to focus on your game. Its clean, minimal design blends well with any gaming or home office setup. In conclusion, the ViewSonic XG2409 24″ 180Hz Gaming Monitor offers smooth visuals, fast response, and ergonomic features, making it a great choice for gamers who want performance and value. Specifications: Display : 24″ IPS Resolution : 1920 x 1080 FHD Refresh Rate : 180Hz Response Rate : 1ms MPRT
Introducing the LG MyView Smart Monitor – your all-in-one display solution for work, entertainment, and everything in between. With its innovative features and user-friendly interface, this monitor redefines convenience and efficiency. First and foremost, versatility is the name of the game. Whether you’re working on spreadsheets, streaming your favorite shows, or gaming with friends, the MyView Smart Monitor adapts effortlessly to your needs. Transitioning between tasks is seamless thanks to its intuitive interface and quick response times. Say goodbye to cluttered desktops and hello to a streamlined workflow that maximizes productivity. Moreover, connectivity options abound. From wireless casting to multiple input ports, the MyView Smart Monitor ensures compatibility with a wide range of devices. Whether you’re using a laptop, tablet, or smartphone, connecting is hassle-free. In addition, ergonomic design features such as adjustable stands and eye-care technology prioritize your comfort and well-being during extended use. Say goodbye to eye strain and discomfort – the MyView Smart Monitor has your back. Furthermore, its sleek and modern design adds a touch of sophistication to any space, whether it’s your home office or entertainment center. Elevate your surroundings with a display that not only performs but also complements your aesthetic. In conclusion, the LG MyView Smart Monitor is more than just a display – it’s a versatile companion that enhances every aspect of your digital life. Experience the convenience, efficiency, and style it brings to the table, and unlock a world of possibilities today. Specifications: Display : 27″ IPS Resolution : 1920 x 1080 Refresh Rate : 60Hz Response Rate : 5ms GTG Speaker : 5W x2
The ViewSonic 24″ 100Hz IPS Monitor is a high-performance display designed for work, entertainment, and gaming. It features a 24-inch Full HD IPS panel, delivering sharp visuals, vibrant colors, and wide viewing angles. Whether you’re working on creative projects, watching movies, or gaming, the high-quality display ensures a smooth and immersive experience. With a 100Hz refresh rate, this monitor provides ultra-smooth motion, reducing screen tearing and stuttering. The fast refresh rate enhances gaming, making movements appear fluid and responsive. It also improves everyday tasks like scrolling and video playback, providing a better overall visual experience. The IPS panel technology ensures consistent and accurate colors, making it ideal for content creators, designers, and professionals. The 178° wide viewing angles allow clear visibility from different positions, ensuring that images and text remain sharp and distortion-free. Designed with eye comfort in mind, the monitor features flicker-free technology and a blue light filter. These features help reduce eye strain and fatigue, making it comfortable for extended use. Whether you’re working long hours or enjoying a gaming session, this monitor keeps your eyes protected. The sleek and modern design fits seamlessly into any workspace or gaming setup. Its thin bezels provide a more immersive viewing experience, perfect for multi-monitor setups. The monitor includes multiple connectivity options, such as HDMI and DisplayPort, ensuring compatibility with a wide range of devices. With its fast refresh rate, stunning color accuracy, and ergonomic design, the ViewSonic 24″ 100Hz IPS Monitor is a great choice for professionals, gamers, and everyday users. It offers smooth performance, vibrant visuals, and long-term eye comfort in a stylish package. Specifications: Display : 24″ IPS Resolution : 1920×1080 FHD Refresh Rate : 100Hz Response Rate : 1ms
Are you ready to take your gaming to the next level? Dive into the realm of ViewSonic VX2758A-2K-PRO-2 gaming monitors, where affordability meets exceptional performance for an unmatched gaming experience. Firstly, enjoy crystal-clear visuals with ViewSonic’s high-resolution displays. Immerse yourself in the action with vibrant colors and sharp images, providing a gaming experience like never before. Transition smoothly between scenes with ViewSonic’s quick response times. Say goodbye to lag and motion blur, ensuring you stay ahead in the game and never miss a critical moment. Explore a range of sizes to suit your gaming setup. From compact options for cozy spaces to larger displays for a cinematic experience, ViewSonic has a gaming monitor to fit your preferences. Achieve optimal comfort with customizable settings. ViewSonic VX2758A-2K-PRO-2 gaming monitors offer adjustable brightness, contrast, and color settings, allowing you to tailor the display to your liking and reduce eye strain during extended gaming sessions. In conclusion, elevate your gaming setup without breaking the bank. ViewSonic VX2758A-2K-PRO-2 gaming monitors provide the perfect blend of affordability and top-notch performance, delivering a visually stunning and responsive gaming journey. Level up your gaming experience with ViewSonic today! Specifications: Resolution : 2K QHD Display : 27″ IPS Refresh Rate : 170Hz Response Time : 1ms
The HP ProLiant DL360 Gen9 is a powerful 1U rack server equipped with 2x Intel Xeon E5-2660 v3 processors, 64GB DDR4 RAM, and 8x 300GB SAS 2.5-inch drives for fast and reliable storage. Ideal for virtualization, enterprise workloads, and data center deployments.
HP Gk400F Mechanical USB Gaming Keyboard, Dust & Spill Resistant, RGB Backlit Keys, Metal Panel, Full-Sized Keyboard Design About this item [Quick. Comfy. Accurate] Comfortable and Durable full-sized keyboard designed. [Plug-in and type] Get to typing quicker with the USB plug-and-play setup that’ll have you connecting to your PC faster and easier than ever [Dust-proof & splash-proof] Mechanical metal panel, dust and spill. Resistant. [All-day comfort] This keyboard is designed for optimal comfort to fit your natural position, keeping your wrist feeling good all day. [Let there be LED] Lightsync RGB Backlit Keys and auto sleep mode support.Brilliant RGB Color Spectrum illumination.
WIWU Macbook Mate for Macbook Accessories Storage Bag *Two layers with Slim design with big capacity for cards, Coins, cash, passport, tickets, accessroies, mobile phone, etc. *Frond pocket slots are wide enough to accommodate large cell phones like iphone 7 plus making this one of the most important identity protector essentials for men and women *RFID blocking material helps prevent identity theft by blocking RFID signals of 13.56 MHz frequency, used by RFID chips in credit cards and passport
The Samsung 85″ Crystal UHD U8000F 4K Smart TV UA85U8000FUXTW uses a 3840 × 2160 (4K UHD) LCD panel designed for large-screen viewing. It focuses on screen size and basic 4K playback rather than advanced display features. It uses Samsung’s Crystal Processor 4K for image processing and upscaling. This processor converts lower-resolution video to near-4K output on the screen. It also supports HDR10 and HDR10+ for compatible content, which increases contrast range between bright and dark areas. The native refresh rate is 60 Hz. It includes Motion Xcelerator to reduce blur in fast motion scenes such as sports and games. The TV runs Samsung Tizen OS. This system provides access to streaming apps, web browsing, and SmartThings integration. It also supports voice assistants depending on region and setup. For connectivity, it includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. It also supports features like ALLM for basic gaming responsiveness. Overall, this model is a large 4K Crystal UHD TV focused on size, standard smart features, and basic HDR performance without local dimming or advanced gaming hardware. Specifications: 85-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz native refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
Keyboard for Macbook Pro A1502 ,A1582,A1493 13" Inch Retina Year 2013,2014,2015 Part no ME864 ME864LL/A ME866LL/A APN: 661-8154, 661-02361, 818-4278 Black US Layout Keyboard for Macbook Pro A1502 ,A1582,A1493 13″ Inch Retina Year 2013,2014,2015 Part no ME864 ME864LL/A ME866LL/A APN: 661-8154, 661-02361, 818-4278 Black US Layout Compatibility: FOR MB Pro Retina 13″ A1502 Late 2013: ME864LL/A (2.4 Core i5) Late 2013: ME866LL/A (2.6 Core i5) Late 2013: ME866LL/A (2.8 Core i7) Mid 2014: MGX72LL/A (2.6 Core i5) Mid 2014: MGX92LL/A (2.8 Core i5) Mid 2014: MGX92LL/A (3.0 Core i7) Early 2015: MF839LL/A (2.7 GHz Core i5) Early 2015: MF841LL/A (2.9 GHz Core i5) Early 2015: MF843LL/A (3.1 GHz Core i7) Identifying Numbers APN: 661-8154, 661-02361, 818-4278 Compatible part numbers: ME864 ME865 ME866 MF839 MF841 MF843 MGX72 MGX92 (Layout US) Related Part #: 661-8154, 661-02361, 818-4278 High Quality Laptop Keyboard. 100% Compatible with your brand.
Samsung Lebanon 43″ UHD LS43BM700UMXUE The Samsung Lebanon 43″ UHD Everything you need is right in your screen. Watch, work and chat – all without connecting a separate PC – with Smart Monitor. Your favorite content, productivity and video call apps are built-in. for a simpler and more stylish desk setup that’s a joy to use every time. Smart TV Experience Effortless entertainment. Enjoy Netflix, YouTube and other streaming services by simply connecting the monitor to WiFi. Samsung TV Plus also offers free live and on-demand content with no downloads or sign-up needed. while Universal Guide provides personalized content recommendations. Workspace Experience PC-less. Browse the web, edit documents and work on projects, all without the need for a separate PC. With new Workmode, you can also remotely access another PC, use Microsoft 365 programs and even . connect to Samsung mobile devices with Samsung DeX for seamless working. SlimFit camera Jump into any conversation. The SlimFit camera with tilt functionality allows you to create the perfect angle . while using your favorite video call apps like Google Duo, which can be accessed directly through the monitor. Plus, the camera cover and option to fully detach always protect your privacy. IoT Hub Turn your Smart Monitor into a control center for the home by connecting it to your IoT home products with SmartThings. Relax by turning off the lights, pulling down the blinds and setting the thermostat to the perfect temperature . all with the Smart Monitor for a perfectly relaxed evening. Multiple Voice Assistants With the Far Field Voice feature, activate your voice assistant just by speaking. Directly command the monitor even at a distance – and tell it what you need. It’s as simple as that. The Smart Monitor supports both Bixby and Amazon Alexa. Mobile connectivity Convenient connectivity. With AirPlay integration, you can wirelessly connect Apple devices to the Smart Monitor . and view on a bigger screen. Enjoy your favorite content from an iPhone, iPad. and Mac on the Smart Monitor and even mirror apps, documents, and websites. Specifications: Specifications Screen Size (Class)43 Flat / CurvedFlat Active Display Size (HxV) (mm)941.184×529.416 Aspect Ratio16:9 Panel TypeVA Brightness (Typical, cd/m2)300 Brightness (Min, cd/m2)240 Contrast Ratio Static5,000:1(Typ.) HDR(High Dynamic Range)HDR10 Resolution3,840 x 2,160 Response Time4ms(GTG) Viewing Angle (H/V)178°(H)/178°(V) Color SupportMax 1B Refresh RateMax 60Hz 3-year warranty Manufacturer Link
In the world of monitors, the ViewSonic VA2223-H stands out as a reliable and clear solution, offering a perfect blend of visual excellence and simplicity for an enhanced viewing experience. Transitioning to its key features, the VA2223-H excels in providing clear and crisp visuals. This monitor is designed to deliver sharp and vibrant images, ensuring a visually engaging experience for work or entertainment. Moreover, this display impresses with its sleek and minimalistic design. The ViewSonic VA2223-H not only enhances the aesthetics of your workspace but also ensures straightforward setup, making it an ideal choice for users seeking simplicity. In addition to its functionality, the VA2223-H offers user-friendly controls and versatile connectivity options, ensuring a hassle-free experience. This monitor seamlessly adapts to various settings, providing flexibility for different viewing preferences. Furthermore, ViewSonic’s commitment to user satisfaction is evident in the VA2223-H’s energy-efficient design and eye-care technology. It’s a reliable companion for extended viewing periods without compromising on visual quality. In conclusion, the ViewSonic VA2223-H redefines clarity and simplicity, combining clear visuals, sleek design, and user-friendly features. Elevate your viewing experience effortlessly with the VA2223-H – your clear and straightforward solution for visual excellence! Specifications HDMI and VGA input 60Hz Refresh Rate Superior color rendering options Comfortable viewing Low energy consumption VESA mountable 1 Year Warranty
The Samsung Odyssey G5 32″ 180Hz Gaming Monitor takes your gaming experience to a whole new level. Designed for gamers, it delivers stunning visuals and exceptional performance to keep you ahead of the competition. The ultra-fast 180Hz refresh rate ensures buttery-smooth gameplay. Whether you’re playing fast-paced shooters or exploring open-world adventures, the Samsung Odyssey G5 eliminates lag and motion blur for seamless action. Featuring a 1ms response time, the Samsung Odyssey G5 provides ultra-fast reactions, giving you the edge you need in competitive gaming. Every movement and input is captured instantly, making the difference between victory and defeat. The QHD resolution of the Samsung Odyssey G5 delivers stunning clarity and sharpness. With 1.7 times the pixel density of Full HD, you’ll enjoy incredibly detailed graphics and vibrant colors that make your games look their best. AMD FreeSync Premium technology ensures tear-free gaming, synchronizing the refresh rate of your monitor with your GPU for smooth performance. It reduces screen tearing and stuttering for a more fluid gameplay experience. In conclusion, the Samsung Odyssey G5 32″ 180Hz Gaming Monitor offers the perfect combination of speed, clarity, and immersion. Elevate your gaming setup with this high-performance monitor and enjoy an unbeatable experience in every game. Specifications: Display : 32″ IPS Resolution : QHD (2,560 x 1,440) Refresh Rate : 180Hz Response Time : 1ms GTG
Samsung S24D300 24″ Essential S3 Monitor offers a 24‑inch Full HD (1920 × 1080) IPS display for clear and detailed visuals. Additionally, it provides a smooth experience with up to 100 Hz refresh rate, which can show motion more fluidly than standard 60 Hz panels. The flat screen and simple design make it suitable for home, study, or office use. Moreover, it includes Eye Saver Mode and Flicker Free technology to help reduce eye strain during long sessions. Therefore, users can stay comfortable while working, browsing, or watching content. The monitor provides basic connectivity options with HDMI and VGA ports. Furthermore, its slim bezel enhances a modern setup and fits well with other devices. In addition, the tilt‑adjustable stand allows users to set a comfortable viewing angle. Samsung backs the product with a three‑year warranty for added peace of mind. Specifications: Display : 24″ IPS Resolution : 1920 x 1080 FHD Refresh Rate : 100Hz Response Rate : 5ms
WiWU WM108 Wimice Dual‑Mode Mouse – Bluetooth 5.0 and 2.4 GHz wireless mouse with 800/1200/1600 DPI, silent clicks, and ergonomic ABS housing.Long battery life (~6 months standby), USB dongle & silent design—ideal for travel, office, and quiet environments. Model: WiWU Wimice WM108 Connection Modes: Bluetooth 5.0 2.4 GHz wireless via USB dongle Connection Modes: Bluetooth 5.0 2.4 GHz wireless via USB dongle DPI Settings: 800 / 1,200 / 1,600 DPI (adjustable) Buttons: 3 standard buttons + clickable scroll wheel (4 keys total) Range: Up to 10 m wireless connectivity Material/Design: Lightweight (67–130 g, depending on source), ergonomic ABS plastic body, magnetic base or “super magnetic absorption” design Operating Range: ≈10 m Silent Clicks: Quiet operation—silent key action Dimensions: Approx. 108 × 64 × 36 mm Weight: 67 g cited by Star Tech and 130 g by others—likely lighter in official spec Compatibility: Windows, macOS, Linux, Android, etc. Plug-and-play, no driver needed
The MSI MAG 275QPF X30 0.5ms 2K 300Hz Gaming Monitor delivers fast, smooth performance and sharp visuals for serious gamers. Its 27-inch screen with 2K resolution brings games, movies, and work to life with crisp detail and vibrant colors. Moreover, the ultra-fast 300Hz refresh rate helps reduce motion blur and deliver fluid action during intense gaming sessions. This monitor features a 0.5ms response time that allows you to react quickly in fast-paced games, keeping visuals clear even during rapid movement. Additionally, the display supports wide viewing angles and rich color performance, making your experience more engaging whether you play competitive games or watch movies. The sleek design blends well into gaming setups and home offices. The MSI MAG 275QPF X30 also includes multiple connectivity options, making it easy to connect PCs, laptops, and consoles. Furthermore, ergonomic tilt adjustment helps you find a comfortable viewing angle for long sessions. Therefore, it is ideal for competitive and casual gamers alike who value speed and clarity. Finally, it combines fast response, smooth motion, and sharp visuals for great everyday use. Specifications: 27″ 2K gaming monitor 300Hz refresh rate for smooth motion 0.5ms response time for fast action Vibrant visuals and wide viewing angles Multiple connectivity options
Digital Device Laptop Keyboard Compatible for MacBook AIR 13″ A1369 A1466 (MID 2011- MID 2017) US Layout 【Unique】Pls see detail compatible models in description below. 【Safe】Easy for you replace your faulty, cracked or broken keyboard ,seller remind that you should replace the keyboard in the off state. All pictures are taken from the real item, please check carefully before bidding, Replacement and high quality, Replace your faulty, cracked or broken keyboard. Each keyboard is tested before shipping Compatibility: MacBook Air 13″ A1369 Mid 2011: MC965LL/A (1.7 GHz Core i5) Mid 2011: MC966LL/A (1.7 GHz Core i5) Mid 2011: MD226LL/A (1.8 GHz Core i7) Compatibility: MacBook Air 13″ A1466 Mid 2012: MD231LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (2.0 GHz Core i7) Mid 2013: MD760LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.7 GHz Core i7) Early 2014: MD760LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.7 GHz Core i7) Compatibility: Early 2015: MJVE2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Early 2015: MJVG2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Identifying Numbers APN #: 661-6059, 661-6635, 661-7480
Brand Lenovo Compatible Devices Laptops Input Voltage 240 Volts Mounting Type Wall Mount Wattage 90 watts Output Voltage 20 Volts Current Rating 4.5 Amps Lenovo 90W Slim Tip Ac Adapter (Original)
The 45W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Air stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. The 45W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Air stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while the AC wall adapter (also provided) gives you an even easier and more compact way to travel. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. It also powers the system if you choose to operate without a battery. Compatible only with MacBook Air featuring MagSafe 2 power port. Knowing which specific Mac model you have is important. If you are running OS X Lion (10.7) or later go to the “” menu at the top left of your screen, choose “About this Mac” then click the “More Info…” button. Your Mac model and generation will be displayed. If you are running an earlier version of OS X, you can enter your serial number here to find out which model you have. Mac Models MacBook Air (13-inch, Early 2015 – 2017) MacBook Air (11-inch, Early 2015)
The Samsung 75″ Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW delivers a premium viewing experience with advanced Neo QLED display technology. It produces bright, detailed images with strong contrast and rich colors, so movies, sports, and games look sharp and immersive on the large 75-inch screen. Neo QLED technology uses Quantum Mini LEDs to improve brightness control and contrast precision. As a result, dark scenes appear deeper while bright areas stay vivid and accurate. This creates a more balanced and realistic picture across all types of content. Samsung integrates an AI-powered processor that enhances picture quality in real time. It analyzes each scene and automatically adjusts brightness, sharpness, and color. Therefore, the Samsung 75 Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW consistently delivers optimized visuals without manual tuning. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity. HDR support increases brightness range and color depth, making visuals more dynamic and lifelike. Fast motion handling also improves clarity, which enhances sports and action scenes. The Smart TV platform provides easy access to streaming apps, gaming features, and smart home controls. It runs smoothly and responds quickly when switching between apps. In addition, the slim design with thin bezels gives the Samsung 75 Neo QLED QN85F 4K Smart TV QA75QN85FAUXTW a modern and premium appearance. Overall, this Samsung Neo QLED TV combines bright performance, AI optimization, and smart connectivity for a powerful home entertainment experience. Specifications: Neo QLED technology delivers bright, detailed, and accurate visuals 75-inch 4K display provides immersive large-screen viewing experience AI processor optimizes picture quality automatically in real time HDR improves contrast, brightness, and color depth Smart TV platform supports apps, streaming, and smart features
The Samsung ViewFinity S7 32″ 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 32-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 32″ 4K Monitor and enjoy stunning visuals. Specifications: Display : 32″ VA Resolution : 4K (3840×2160) HDR10 Refresh Rate : 60Hz Response Rate : 5ms
