The Samsung 77″ S95D OLED 4K Smart TV | QA77S95FAUXTW is a premium large-screen television designed for exceptional picture quality and immersive home entertainment. It features advanced OLED technology, and it delivers perfect black levels, infinite contrast, and highly accurate colors. In addition, the 4K resolution ensures sharp detail and clarity across movies, games, and streaming content. This model uses Samsung’s advanced AI processor, and it enhances picture quality in real time. As a result, lower-resolution content is intelligently upscaled closer to 4K quality with improved sharpness and texture. Furthermore, the processor optimizes brightness and color balance depending on the scene, so viewing remains consistent in different lighting conditions. The Samsung S95D also supports advanced HDR performance, and it delivers brighter highlights and deeper contrast for a more cinematic experience. Therefore, visuals appear more realistic and dynamic. In addition, motion enhancement technology helps reduce blur, making fast-moving scenes in sports and action movies smoother and clearer. The Smart TV platform provides access to popular streaming applications and smart features. Meanwhile, the sleek OLED design with ultra-thin bezels creates a modern, minimalist look that blends into any living space. Overall, the Samsung 77″ S95D OLED 4K Smart TV | QA77S95FAUXTW combines premium OLED picture quality, intelligent AI processing, and advanced smart features. It is ideal for users who want a high-end cinematic viewing experience at home. Specifications: OLED panel delivers perfect blacks and infinite contrast for cinematic visuals 4K resolution ensures sharp detail and crystal-clear picture quality AI processor enhances and upscales content for improved viewing clarity HDR support delivers brighter highlights and deeper contrast levels Smart TV platform provides access to streaming apps and smart features
MacBook Pro 13″ Keyboard Replacement/Compatible for Apple MacBook Pro A1708 Color :- Black, Layout :- US Apple MacBook Pro A1708 Keyboard is a high quality replacement keyboard which is perfect for replacing your old and broken laptop keyboard. Before you order,Please firstly compare the picture with your keyboard, especially the ribbon cable (position, length and width). Make sure that the model of laptop and part number of keyboard is the right one you need as well as the layout version.
Cooler Master MasterGel Regular Thermal Paste PRODUCT NUMBERMGX-ZOSG-N15M-R2COLORGrayTHERMAL CONDUCTIVITY5 (W/m-K) SPECIFIC GRAVITY2.5 (g/cm3) (25°C) VOLUME1.5m lGREASE CLEANERYes EAN CODE 4719512077757UPC CODE884102050244SERIES Thermal Grease, MasterGel Series COOLER TYPEThermal Grease
AOC 27B36X 27-inch 144Hz monitor delivers smooth and responsive performance for gaming, work, and daily use. It focuses on fast refresh rate, clear Full HD visuals, and reliable IPS panel quality. Additionally, it features a 27-inch IPS panel with Full HD resolution (1920 × 1080). This panel provides accurate colors and wide viewing angles, so it ensures consistent image quality across different positions. Moreover, it supports a 144Hz refresh rate with 0.5ms MPRT response time. As a result, it delivers fluid motion and reduces blur during fast-paced scenes and gaming. The monitor includes Adaptive Sync technology. Therefore, it reduces screen tearing and stuttering for smoother and more stable performance. In addition, it supports HDR10. This enhances contrast and color depth, so visuals appear more vivid and detailed in supported content. Furthermore, it includes Low Blue Light and Flicker-Free technologies. So it helps reduce eye strain during long working or gaming sessions. The design features a slim frameless look with tilt adjustment and modern connectivity. It supports clean setups for both office and gaming environments. AOC 27B36X 27-inch 144Hz monitor provides a balanced combination of speed, clarity, and comfort for everyday productivity and smooth gaming. Specifications: 27-inch IPS panel with Full HD 1920 × 1080 resolution 144Hz refresh rate for smooth visual performance 0.5ms MPRT response time for reduced motion blur Adaptive Sync for tear-free and stable visuals HDR10 with Low Blue Light eye comfort features
WiWU Alpha Slim Sleeve Laptop Case 14/15.4/16 inch Inch Waterproof Bag With Handle For Macbook
Screen Size 32″ Display Type VA Color Gamut (Typ.) sRGB 95% (CIE1931) Color Depth (Number of Colors) 16.7M Pixel Pitch (mm) 0.36375 x 0.36375 mm Response Time (GTG) 5ms (GtG at Faster), 1ms MBR Refresh Rate 165Hz Aspect Ratio 16:9 Display Resolution FHD Resolution 1920 x 1080 Brightness 300cd/m² Contrast Ratio 3000:1 Viewing Angle 178º (R/L), 178º (U/D) Surface Treatment Anti-Glare INPUT/OUTPUT HDMI Yes x 2 DisplayPort Yes x 1 Headphone Out Yes POWER Type Adapter Input 100-240 Vac, 50/60Hz Power Save/Sleep Mode (Max.) Less than 0.5W DC Off (Max.) Less than 0.3W Power Consumption (Typ.) 40W Power Consumption (Max.) 40W SPECIAL FEATURES NVIDIA G-Sync™ Yes (Compatible) Adaptive Sync AMD FreeSync™ Premium Black Stabilizer® Yes Dynamic Action Sync® Yes Crosshair® Yes Flicker Safe Yes Smart Energy Saving Yes Reader Mode Yes OnScreen Control (OSC) Yes HDR (High Dynamic Range) HDR10 HDR Effect Yes FreeSync (Low Frame Compensation) Yes Motion Blur Reduction Technology Yes 1ms Motion Blur Reduction Yes SOUND Speaker No Built-in Speaker DIMENSIONS/WEIGHTS With Stand (WxHxD) 28.1″ x 23.6″ x 11.5″ (Up), 28.1″ x 19.3″ x 11.5″ (Down) Without Stand (WxHxD) 28.1″ x 16.9″ x 2.0″ Shipping Dimensions (WxHxD) 31.2” x 21.9” x 8.9” With Stand Weight 15.9 lbs Without Stand Weight 11.2 lbs Shipping Weight 22.7 lbs STAND Display Position Adjustments Tilt/Height/Pivot CABINET/ACCESSORIES Wall Mount Size (mm) 100 x 100 mm Display Port Yes 3 Years Warranty manufacturer link
The LG UltraWide 34″ 100Hz Curved Monitor offers an expansive 21:9 aspect ratio, providing ample screen space for multitasking and immersive viewing. Its 3440 x 1440 WQHD resolution delivers sharp and detailed visuals, enhancing both productivity and entertainment experiences. Featuring a curved display, this monitor ensures consistent color accuracy and wide viewing angles, making it ideal for creative professionals and gamers alike. The 100Hz 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″ 100Hz Curved Monitor combines high-resolution visuals, color accuracy, and ergonomic design, making it a versatile choice for professionals and enthusiasts. Specifications: Display : 34″ VA Resolution : 3440 x 1440 WQHD Refresh Rate : 100Hz Response Rate : 5ms GTG Curvature : 1800R
The Samsung 83-inch TV S90F OLED 4K | QA83S90FAEXTW is a premium large-screen television designed to deliver exceptional picture quality and immersive entertainment. It features advanced OLED technology that produces deep blacks, vibrant colors, and outstanding contrast. In addition, the large 83-inch screen creates a cinematic viewing experience, making movies, sports, and games feel more engaging. Samsung equips this model with an advanced AI-powered processor, and it continuously enhances picture quality in real time. As a result, viewers enjoy sharper details, improved color accuracy, and optimized brightness across different types of content. Furthermore, AI upscaling improves lower-resolution videos, bringing them closer to 4K quality for a more refined viewing experience. The OLED panel controls each pixel independently, so bright highlights and dark scenes appear with remarkable precision. Therefore, images look more realistic and detailed. In addition, HDR support expands contrast and color depth, delivering lifelike visuals with greater dynamic range. Samsung’s Smart TV platform provides easy access to popular streaming applications, gaming features, and smart home controls. Meanwhile, the slim profile and minimal bezel design create a modern appearance that enhances any living room or entertainment space. Overall, the Samsung 83-inch TV S90F OLED 4K | QA83S90FAEXTW combines premium OLED technology, intelligent processing, and advanced smart features. It is an excellent choice for users who want a large-screen home theater experience with impressive picture performance. Specifications: OLED technology delivers deep blacks and exceptional contrast performance 83-inch display creates an immersive cinematic viewing experience AI-powered processor enhances picture quality and content upscaling HDR support improves brightness, color depth, and visual realism Smart TV platform provides streaming apps and connected home features
This 5-meter VGA to VGA cable provides a stable analog video connection between PCs, laptops, monitors, and projectors. With a male-to-male design and durable build, it’s ideal for offices, classrooms, and home setups needing a longer VGA extension. The VGA to VGA 5-meter cable is designed to connect computers, laptops, DVRs, or other VGA-enabled devices to monitors, TVs, or projectors. Its extended length makes it perfect for conference rooms, classrooms, and setups where the display is far from the source device. Built with reliable connectors and shielding, it ensures stable signal transmission for clear video output. 5-Meter Length for flexible long-distance connection VGA Male to VGA Male standard 15-pin connector Stable Video Signal for consistent display output Compatible with Monitors & Projectors ideal for presentations Durable Cable Build for long-term use Easy Plug & Play no drivers required Suitable for any device with a VGA port, including desktops, laptops, monitors, projectors, and older display systems. Perfect for presentations, office setups, classrooms, and extended-distance connections.
BATTERY DELL M5Y1K Laptop Battery for Dell Inspiron 15 5000 5555 5558 5559 3552 3558 3567 14 3451 3452 3458 5458 17 5755 5758 Series Rechargeable 40WH li-ion Battery Replacement Fit GXVJ3 VN3N0 YU12005-13001D About this item 【Specification】Dell laptop Replacement Battery Type: Li-ion; Voltage: 14.8 V; Capacity 2600MAH/40WH; Cells:4-Cell 【Stability】M5Y1K Laptop Battery Replacement battery for Dell offers 500+ recharge cycles over life of battery 【COMPATIBLE MODEL】(Check description below for more models) Dell 40WH Standard Rechargeable Li-ion Battery Type M5Y1K 14.8V YU12005-13001D 453-BR GXVJ3 HD4J0 M5YIK MSY1K Dell Inspiron 14 15 3000 Laptop Replacement Battery 3558 3458 3567 3452 3565 3459 P60G Dell Inspiron 14 15 17 5000 Laptop Battery 5555 5558 5559 5755 5758 5458 Dell Vostro Laptop Battery 3558 3458 Dell Latitude Laptop Battery 3460 3560 【GUARANTEE】Our Dell M5Y1K replacement laptop battery is 100% Compatible with the originals. Complying with the CE/FCC/ROHS/UL Certified Standard
The ViewSonic VA2763-H 27″ FHD 100Hz Monitor delivers clear images with strong detail. Its Full HD resolution makes movies, games, and work look sharp. The large 27-inch screen gives you more space to enjoy your content. This helps you stay productive and focused. Moreover, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor features a smooth 100Hz refresh rate. Motion looks cleaner and faster on the screen. This makes gaming and scrolling feel more responsive. It also reduces blur during fast scenes. In addition, the monitor uses an advanced panel for rich colors. The colors remain accurate from different viewing angles. This makes photos, videos, and documents look consistent. It is great for students, creators, and office users. Furthermore, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor includes eye-care features for long hours of use. Flicker-Free technology protects your eyes from strain. The blue light filter adds extra comfort during work or study. This helps you stay relaxed throughout the day. Also, the monitor has HDMI and VGA ports for simple connection. You can connect laptops, desktops, and gaming consoles easily. The setup process is fast and user-friendly. This makes the monitor suitable for home and office spaces. The design of the ViewSonic VA2763-H 27″ FHD 100Hz Monitor looks clean and modern. The slim frame gives your workspace a sleek look. It fits well on desks of all sizes. The build quality is strong and durable. Overall, the ViewSonic VA2763-H 27″ FHD 100Hz Monitor offers smooth performance, clear visuals, and eye-care comfort. It improves your work, study, and gaming experience. This monitor is ideal for anyone who wants quality and simplicity. Specifications: Display : 27″ IPS Resolution : 1920×1080 Refresh Rate : 100Hz Response Time : 1ms
Model: A4Tech Bloody G521S Type: Over-Ear Wired Gaming Headset Connection: USB (Digital Audio Interface) Drivers: 50mm Neodymium speakers Sound Technology: 7.1 Virtual Surround Sound Built-in Sound Card Frequency Response: Speaker: 20Hz – 20kHz Microphone: 100Hz – 10kHz Impedance: 16 Ohms Sensitivity: Speaker: 105 dB ± 3 dB Microphone: -45 dB ± 3 dB Microphone: Noise-canceling Flexible boom design Lighting: RGB backlight on earcups Design: Soft memory foam ear cushions Adjustable headband with durable metal frame Cable Length: 2.2 meters Weight: ~280g Compatibility: Windows PC (supports software features), basic plug-and-play on other platforms Extras: Bloody software for audio customization
MLT-D111S MLT-D111L Toner Cartridge Replacement for Samsung 111S MLTD111L for Xpress SL-M2020W SL-M2070FW SL-M2070W M2020 M2024W M2026W M2070 Laser Printer (Black, 1-Pack)
A sleek and secure pre-owned Dell Latitude 7490 with 14" display, 8th Gen Core i5, 8GB RAM, and 128GB SSD—designed for business professionals who need portability, durability, and enterprise-grade performance.
As an E-sports player, your arsenal of devices must be power-packed and rigged up with superior technology. Equipped for competitive gaming, the Lenovo G24-20 takes gaming performance to the next level. A screen size of 23.8-inch, ideal for E-sports, with 3-side NearEdgeless display lets you engage in gaming distraction-free. Your skills and reflexes are backed by the superfast 144 Hz refresh rate, overclock to 165 Hz along with 0.5ms MPRT and AMD FreeSync™ Premium technology – to ensure no target misses due to latency or screen tearing and stuttering. Nothing escapes your eye on the battlefield with In-Plane Switching panel, 99% sRGB colour gamut, and 350 nits brightness that offer minute details and a vivid display performance. What’s more, get more control over your G24-20 monitor with exclusive Lenovo Artery software that lets you tweak display settings to further your game. Delivering an enriching experience, the Lenovo G24-20 gaming monitor significantly reduces lags and slowdowns, enabling ultra-smooth gameplay in every frame. Specifications : Monitor Size 23.8″ Brightness 350 cd/㎡ (typical) Aspect Ratio 16:9 Contrast Ratio 1000:1 Connection Type 2 x HDMI 2.0; 1 x DP 1.2; 1 x Audio Out (3.5 mm) Weight 5.30 Kg Backlight WLED Response Time 0.5 ms (MPRT) / 1 ms (Level 1) / 2 ms (Level 2) / 3 ms (Level 3) / 4 ms (Level 4) / 5 ms (Off mode) Panel Type In-Plane Switching Viewing Angle 178 / 178 degrees Stand Tilt Angle (-5° / 22°), Lift Range (130 mm) EU Energy Rating F Power Requirement 100 – 240 VAC, 47 – 63 Hz Energy Star None Brand Lenovo Packed Weight 7.26 Kg USB Ports None Length 53.9 cm Included Accessory HDMI, DP Built-in Camera No Color Coverage 178° / 178° Color Depth 8-bit Color Support 16.7 Million Eye Caring Yes Gaming Yes Head only Dimentions 52.50 mm x 323.15 mm x 539.75 mm / 2.07″ x 12.72″ x 21.25″ Height-Adjustable Yes Integrated Speaker No Kensington Lock Yes Near Edgeless 3-side Power Consumption 25W Typ, 38W Max, 0.5W Sleep, 0.3W Power Off Software/Driver Yes (Lenovo Artery, Lenovo Display Control Centre) USB Type-C No Weight Head Only 3.30 Kg Weight 7.26 Kg Weight without Package 5.26 Kg Maximum Resolution 1920 x 1080 Brightness 350 cd/m² Height 49.8 cm Depth 23.4 cm EPEAT None 1 Year Warranty manufacturer link
The ViewSonic TD1630-3 16″ Touch Screen Monitor offers smooth touch control in a compact and modern design. It provides clear HD visuals for work and entertainment. The screen shows bright colors and sharp details. This makes browsing, drawing, and viewing content more enjoyable. Moreover, the ViewSonic TD1630-3 16″ Touch Screen Monitor supports 10-point multi-touch. You can tap, pinch, and swipe with fast response. The touch experience feels natural and smooth. This helps you work faster and more comfortably. In addition, the monitor includes HDMI and VGA connections. These ports make setup quick and simple. You can connect laptops, desktops, and other devices with ease. This gives you strong flexibility for daily use. Furthermore, the ViewSonic TD1630-3 16″ Touch Screen Monitor features a durable stand. You can tilt the screen for better viewing angles. This helps reduce strain during long use. The strong design keeps the monitor stable on your desk. Also, the monitor includes built-in speakers for easy audio playback. You can watch videos, join meetings, or listen to music without extra devices. This makes the monitor more convenient and practical. The compact size of the ViewSonic TD1630-3 16″ Touch Screen Monitor fits small desks and workspaces. It works well in homes, offices, shops, and reception areas. The clean design blends nicely with modern setups. This makes it suitable for many environments. Overall, the ViewSonic TD1630-3 16″ Touch Screen Monitor offers responsive touch control, clear visuals, and simple connectivity. It improves productivity and enhances entertainment. It is ideal for students, professionals, and businesses that need a reliable touch display. Specifications: Display : 16″ TN Resolution : 1366×768 Refresh Rate : 60Hz Response Time : 12ms
A1989 Battery Replacement, A1964 Battery for MacBook Pro 13″ A1989 (Mid 2018 2019) A2251(2020 Release) EMC 3214 3358 3348 MR9Q2LL/A MR9R2LL/A MR9T2LL/A MR9U2LL/A MR9V2LL/A MV962LL/A MV9A2LL/A 【Specification】Voltage: 11.41V. Capacity: 58Wh/ 5086mAh. Battery Type: Li-ion. Condition: Brand new, from high quality materials, top circuit boards and smart chip. 【Compatible Part Number】A1964 A1989 A1989(EMC 3214) A1989(EMC 3358) A2251(EMC 3348) 020-02497 616-00419. 【Compatible Laptop Models】MacBook Pro 13-Inch model A1989 (Mid 2018, Mid 2019) , A2251(2020 Release), Order No MR9Q2LL/A MR9R2LL/A MR9T2LL/A MR9U2LL/A MR9V2LL/A MV962LL/A MV972LL/A MV982LL/A MV992LL/A MV9A2LL/A MWP72LL/A MWP82LL/A MWP42LL/A MWP52LL/A MWP62LL/A MR9Q2 MR9R2 MR9T2 MR9U2 MR9V2 MV962 MV972 MV982 MV992 MV9A2 MWP62. 【Note】The tools are included. Double-sided tape is attached to the back of the battery, but NO battery installation instruction. The MBP battery is difficult to disassemble, we suggest you search for related installation videos or find a technician for help.
The ViewSonic VX24G10 24″ FHD 240Hz Gaming Monitor delivers ultra-smooth visuals ideal for gaming and daily use. It displays Full HD resolution with bright colors and crisp detail. The screen uses an IPS panel for wide viewing angles and accurate color. This makes movies, work, and games look clear and vivid. Moreover, the VX24G10 offers a blazing 240 Hz refresh rate. It reduces motion blur and makes fast movements appear fluid. This is especially helpful in competitive games or fast action scenes. The 1 ms response time ensures quick pixel transitions for sharp results. It helps avoid ghosting and lag during gameplay. In addition, the monitor includes modern connectivity options: multiple HDMI ports and DisplayPort. These ports let you connect PCs, laptops, and consoles easily. This flexibility supports many devices without trouble. The monitor also supports adaptive sync (FreeSync / G-Sync), which reduces screen tearing and ensures smooth frame rates. Furthermore, the ViewSonic VX24G10 features eye-friendly technology. Its flicker-free panel and blue-light filter help reduce eye strain during long sessions. The slim bezel design gives a modern look and saves desk space. The stand allows slight tilt adjustment for comfortable viewing angles. Also, the monitor supports HDR10, enhancing contrast and improving dynamic range for richer images. This adds depth to games, movies, and creative work. The combination of IPS quality, fast refresh, and HDR makes the VX24G10 a versatile choice for both gaming and productivity. Overall, the ViewSonic VX24G10 24″ FHD 240Hz Gaming Monitor offers smooth motion, sharp visuals, strong compatibility, and eye care. It is perfect for gamers, creators, and anyone who values performance and comfort. It enhances every task — from gaming to work to watching media. Specifications: Display : 24″ IPS Resolution : 1920×1080 Refresh Rate : 240Hz Response Time : 1ms
HP P24v G5 Monitor Overview The HP P24v G5 is a 24-inch Full HD monitor designed for everyday work. It delivers clear visuals and reliable performance. As a result, it suits offices, home setups, and study spaces. 24-Inch Full HD Display This monitor features a 24-inch Full HD resolution. Therefore, text appears sharp and easy to read. Moreover, images look clear and well defined. Because of this, it supports long working sessions comfortably. In addition, the screen size fits most desks well. As a result, it balances clarity and space efficiency. Smooth Visual Performance The HP P24v G5 provides smooth visuals for daily tasks. As a result, scrolling and browsing feel natural. Furthermore, the display maintains consistent brightness. This improves overall viewing comfort. Eye Comfort and Anti-Glare Screen This monitor includes eye comfort features. Therefore, it helps reduce eye strain. In addition, the anti-glare coating limits reflections. As a result, the screen stays clear in bright environments. Connectivity and Compatibility The HP P24v G5 includes HDMI and VGA ports. As a result, it connects easily to new and older devices. Moreover, setup remains quick and simple. Therefore, users can start working immediately. Design and Mounting Options The monitor features a clean and professional design. In addition, it supports VESA mounting. As a result, users can create a flexible workspace. Ideal for Office and Home Use This monitor focuses on reliability and efficiency. Moreover, it suits office work, browsing, and media viewing. In conclusion, the HP P24v G5 is a practical Full HD monitor for daily use. Specifications: Display Quality: 23.8-inch IPS panel with 1920 x 1080 resolution at 100 Hz, offering 99% sRGB color for accurate visuals. Performance: 100Hz refresh rate and 5ms GtG response time with overdrive minimize screen tearing and ghosting. Connectivity: Equipped with HDMI 1.4 and VGA ports for versatile connectivity.
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
