The MSI G2412F Gaming Monitor delivers smooth gameplay with a 180Hz refresh rate and Full HD resolution. It ensures fast and responsive performance for competitive gaming. Moreover, the Rapid IPS panel provides accurate colors and wide viewing angles. It maintains consistent image quality from different positions. The monitor features a 1ms response time to reduce motion blur in fast scenes. This improves clarity during intense gameplay. It also supports Adaptive Sync technology to eliminate screen tearing and stuttering. This ensures smooth and stable visuals. Additional features include Night Vision for better visibility in dark areas. Anti-flicker and low blue light help reduce eye strain during long sessions. The MSI G2412F Gaming Monitor is a strong choice for users who want speed, clarity, and reliable performance. Specifications: 24″ Full HD Rapid IPS panel with wide viewing angles 180Hz refresh rate for smooth and responsive gaming 1ms (GtG) response time for reduced motion blur Adaptive Sync to eliminate screen tearing Night Vision with anti-flicker and low blue light technology
90W AC Charger Replacement for HP EliteDesk 705 G1 G2 G4 705 800 G5 Desktop Mini ProOne 400 G4 G5 23.8-inch All-in-One ProOne 400 G2 G3 G4 G5 460 G2 G3 480 G2 G3 20-inch All-in-One
Are you a serious gamer looking to elevate your gaming setup? The MSI MPG 271QRX QD-OLED 27″ 360Hz Gaming Monitor is the perfect choice. With cutting-edge features and stunning visuals, this monitor will transform your gaming experience. Firstly, let’s talk about the impressive 360Hz refresh rate. This ultra-fast refresh rate ensures smooth and fluid gameplay. You’ll experience minimal motion blur, giving you a competitive edge in fast-paced games. In addition to the refresh rate, the QD-OLED technology offers exceptional color accuracy and contrast. The vivid colors and deep blacks will make every game come to life. Whether you’re exploring detailed landscapes or engaging in intense battles, the visuals will be breathtaking. Moreover, the 27-inch screen size provides an immersive gaming experience. The large display allows you to see more of the game world, enhancing your overall gameplay. It’s the perfect size for both competitive and casual gaming. The MSI MPG 271QRX also features a sleek and modern design. With its slim bezels and adjustable stand, it fits seamlessly into any gaming setup. You can tilt, swivel, and adjust the height for the perfect viewing angle. Furthermore, the monitor is equipped with multiple connectivity options. It includes HDMI, DisplayPort, and USB ports, making it easy to connect all your devices. You won’t have to worry about compatibility issues with your gaming rig. Another highlight is the monitor’s ergonomic design. Long gaming sessions can take a toll on your posture, but this monitor helps alleviate that. With customizable settings, you can maintain comfort during extended play. In conclusion, the MSI MPG 271QRX QD-OLED 27″ 360Hz Gaming Monitor is a game-changer. With its high refresh rate, stunning visuals, and ergonomic design, it’s perfect for serious gamers. Upgrade your setup and unleash your full gaming potential today! Specifications: Display : 26.5“” QD-OLED Resolution : 2560×1440 (WQHD) Refresh Rate : 360Hz Response Rate : 0.03ms (GtG)
Samsung ViewFinity S5 S50GC 34″ UltraWide Monitor features a 21:9 Ultra WQHD display for wide and detailed viewing. Additionally, the large screen helps improve productivity and entertainment by showing more content at once. The flat design and minimal bezel support multi‑task workflows with less distraction. Moreover, the monitor supports HDR10 for richer color and deeper contrast. This brings more accurate and vibrant visuals for movies, work, and games. In addition, the 100Hz refresh rate helps deliver smoother motion during fast scenes and transitions. Furthermore, AMD FreeSync keeps the display and graphics card refresh rates in sync to reduce tearing and stutter. Eye Saver Mode and Flicker Free technology help reduce eye strain during long use. Picture‑in‑Picture (PIP) and Picture‑by‑Picture (PBP) let users view content from two sources at once. Finally, the panel offers wide viewing angles and consistent visuals across the screen. The monitor also includes an ambient light sensor to adjust brightness automatically in changing lighting conditions. These features make it a versatile choice for work and multimedia. Specifications: The monitor has Ultra WQHD (3440 × 1440) resolution with a 21:9 aspect ratio for a wide view. It offers a 100Hz refresh rate for smooth motion and reduced blur. HDR10 support adds richer colors and improved contrast. AMD FreeSync keeps graphics and display refresh rates aligned to reduce tearing. Features include PIP/PBP for multitasking, Eye Saver Mode, and Flicker Free eye comfort tech.
The Apildella Portable Monitor 15.6″ FHD UFYQL gives you clear visuals in a slim and light design. It delivers sharp Full HD resolution for work and entertainment. The screen shows bright colors and smooth images. This makes documents, videos, and games look clear and detailed. Moreover, the Apildella Portable Monitor 15.6″ FHD UFYQL connects easily through USB-C and HDMI. These ports give you quick and simple setup. You can use the monitor without extra adapters. This helps you save time and reduce cable clutter. In addition, the monitor works with laptops, phones, tablets, and gaming consoles. This wide compatibility allows you to use it anywhere. You can work during travel, play games on the go, or extend your desktop. It offers strong flexibility for daily use. Furthermore, the Apildella Portable Monitor 15.6″ FHD UFYQL features a thin frame with a clean design. It fits easily in backpacks and bags. The monitor is lightweight, and this makes it easy to carry. It is a great tool for students and professionals. Also, the monitor includes built-in speakers for simple audio use. They deliver clear sound for calls and videos. The screen also reduces eye strain with eye-care features. This helps you use the monitor comfortably for long hours. The smart cover of the Apildella Portable Monitor 15.6″ FHD UFYQL protects the screen during travel. It also works as a foldable stand. You can set the monitor at different angles for better viewing. This makes work and entertainment more enjoyable. Overall, the Apildella Portable Monitor 15.6″ FHD UFYQL offers portability, clarity, and convenience in one device. It improves productivity and entertainment anywhere you go. It is perfect for travel, study, work, and gaming. Specifications: Display : 15.6″ IPS Resolution : FHD 1920×1080 Refresh Rate : 60Hz Response Time : 5ms
Replacement Audio Board with IPD Cable for MacBook Air M1 2020 (A2337). Compatible with part numbers 820-01929-A, 821-03452-A, 923-03672, 923-03663, and more. Ideal for fixing audio issues, headphone jack problems, or sound board failures. The Audio Board with IPD Cable for MacBook Air (M1, 2020) is a high-quality replacement spare part designed to restore proper sound functionality on MacBook Air A2337 models. If your MacBook is experiencing no sound output, headphone jack issues, distorted audio, or audio board failure, this replacement board provides a reliable solution. It includes the required IPD cable for proper installation and connection, making it ideal for professional repairs and technician use. Replacement Audio Board + IPD Cable for MacBook Air M1 Fixes audio issues such as no sound, headphone jack failure, or audio distortion Includes IPD cable for correct connection and repair High-quality build for stable and long-term performance Ideal for technicians, repair shops, and spare part replacement Compatible with multiple Apple part numbers for easy matching ✔ MacBook Air (M1, 2020) A2337 Compatible only with MacBook Air A2337 (M1, 2020). Please match your device model and part number before ordering to ensure correct fit.
A high-performance pre-owned Dell Precision 5540 mobile workstation with 15.6" 4K touchscreen, 9th Gen Core i7, 16GB RAM, 256GB SSD, and NVIDIA Quadro T2000 4GB—engineered for creative professionals, engineers, and designers who demand power and precision.
WiWU A821CH 8‑in‑1 Stand & Dock – A foldable aluminum laptop stand with a built-in 8‑port USB‑C dock (two USB‑A, two USB‑C, HDMI 4K30, SD/TF, Gigabit Ethernet, PD 100 W).Enhances comfort, cooling, and functionality—perfect for decluttered, professional work setups. Model: WiWU A821CH Design: Sturdy aluminum alloy stand with foldable, portable design, hollow surface for cooling, and silicone pads to prevent slips Dimensions & Weight: Compact when folded (~400 g in aluminum) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Docking Hub Ports: 2 × USB-C ports 2 × USB‑A 3.0 ports 1 × HDMI (up to 4K@30 Hz) SD + micro‑SD card slots 1 × RJ‑45 Gigabit Ethernet (1000 Mbps) Power Delivery: USB-C PD 3.0 supports up to 100 W—can charge a laptop while using other ports Connectivity: HDMI supports up to 4K@30 Hz; Ethernet up to Gigabit speed Stand Features: Detachable base—can use stand and hub together or separately, with adjustable ergonomic angles and vents for airflow Durability: Aluminum alloy with frosted texture, scratch-resistant finish, tested to executive standards
LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm Aspect Ratio 16:9 Resolution 3840 x 2160 Brightness 350nits (typ) Contrast Ratio 1000:1 Viewing Angle 178º (R/L), 178º (U/D) Surface Treatment Anti-Glare INPUT/OUTPUT HDMI Yes x 2 DisplayPort Yes x 1 USB Type-C Yes Headphone Out Yes USB Down-stream Yes x 2 USB-C (DP Alternate Mode) Yes USB-C (Data Transmission) Yes POWER Type Adapter Input 100-240 Vac, 50/60 Hz Power Save/Sleep Mode (Max) 0.5W DC Off (Max) Less than 0.3W Power Consumption (Typ.) 160W Power Consumption (Max.) 55W Specifications: LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm 1 Year Warranty
WiWU Waterproof Large Capacity Minimalist Backpack Business Laptop Backpack Bags with Multi-Pockets For digital gadgets Minimalist Style Water-resistant material,Polyester Large Capacity Have Stock Size:15.6 inch
The Samsung 32″ 60Hz Smart Monitor M70D offers a premium viewing experience with its 4K UHD resolution. Whether you’re working, watching movies, or gaming, this monitor delivers crystal-clear visuals and vibrant colors. With built-in smart features, the Samsung M70D acts as both a monitor and a smart TV. Stream your favorite shows and movies directly from apps like Netflix, YouTube, and more, without needing a separate device. The 32″ screen size provides plenty of space for multitasking, making it perfect for professionals who need to work on multiple applications at once. Its 60Hz refresh rate ensures smooth visuals, even during fast-moving scenes. Designed for modern connectivity, the Samsung M70D includes USB-C, HDMI, and wireless connectivity options. Easily connect your devices for seamless data transfer, charging, and display in one cable. Its slim and sleek design makes the Samsung 32″ Smart Monitor M70D a stylish addition to any desk or living space. The adjustable stand allows you to tilt the monitor for a more comfortable viewing experience. The Samsung M70D also comes with a built-in remote and voice control capabilities, allowing you to navigate through apps and settings effortlessly. This makes it easy to switch between work and entertainment modes. In conclusion, the Samsung 32″ 60Hz Smart Monitor M70D is the perfect all-in-one solution for your work and entertainment needs. Enjoy 4K clarity, smart features, and versatile connectivity in one sleek device. Specifications: Display : 32″ VA Resolution : 4K (3,840 x 2,160) Refresh Rate : 60Hz Response Time : 4ms GTG
Looking for a top-notch gaming monitor? Look no further than the MSI G255F 24″ 180HZ Gaming Monitor. With its impressive 180Hz refresh rate, this monitor ensures smooth and fluid gameplay, providing you with a competitive edge in fast-paced games. The MSI G255F features a 24-inch display, offering vibrant colors and sharp visuals for an immersive gaming experience. Whether you’re battling foes or exploring vast virtual worlds, every detail will pop on this monitor. Equipped with AMD FreeSync technology, the G255F eliminates screen tearing and stuttering, delivering tear-free gaming sessions. Say goodbye to distractions and hello to uninterrupted gaming bliss. Thanks to its fast response time, input lag is minimized, ensuring responsive controls and accurate gameplay. You’ll feel in total control of your actions, giving you the edge you need to dominate the competition. The slim bezel design of the G255F not only looks sleek but also maximizes your viewing area, immersing you further into the game. Say goodbye to distractions and hello to pure gaming immersion. Setting up the MSI G255F is a breeze with its versatile connectivity options, including HDMI and DisplayPort inputs. Whether you’re connecting to a PC or gaming console, compatibility is never an issue. In addition to its gaming prowess, the G255F doubles as a versatile productivity tool with its adjustable stand. Customize your viewing angle for optimal comfort during long gaming sessions or work marathons. In conclusion, the MSI G255F 24″ 180HZ Gaming Monitor is a powerhouse of performance, delivering smooth gameplay, vibrant visuals, and versatile functionality. Upgrade your gaming setup today and experience the difference for yourself. Specifications: Display : 24.5” Rapid IPS Resolution : 1920 x 1080 (FHD) Refresh Rate : 180Hz Response Rate : 1ms (GtG)
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.
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
Looking to enhance your viewing setup? Look no further than the ViewSonic 24″ 75Hz Monitor VA2430-H-9. This monitor offers a perfect blend of performance and affordability. To begin with, enjoy crisp and clear visuals on the 24-inch screen. Whether you’re working on spreadsheets or watching movies, every detail comes to life with vibrant colors and sharp imagery. Transitioning to performance, the VA2430-H-9 boasts a smooth 75Hz refresh rate, ensuring fluid motion and reduced motion blur. Say goodbye to choppy visuals and hello to smooth scrolling and seamless gaming. Furthermore, the monitor’s slim and sleek design adds a touch of elegance to any workspace or gaming setup. Its narrow bezels maximize screen real estate, providing an immersive viewing experience without distractions. Moreover, with multiple connectivity options including HDMI and VGA ports, connecting to your favorite devices is a breeze. Switch between your PC, gaming console, and streaming devices effortlessly. In addition, the VA2430-H-9 features flicker-free technology and a blue light filter, reducing eye strain during extended viewing sessions. Stay comfortable and focused for longer periods without experiencing discomfort. In conclusion, the ViewSonic 24″ 75Hz Monitor VA2430-H-9 is a versatile and reliable choice for both work and entertainment. With its impressive performance, sleek design, and eye-care features, it’s a monitor that truly enhances your viewing experience. Upgrade your setup today and see the difference for yourself. Specifications: Display : 24″ VA Resolution : FHD (1920 x 1080) Refresh Rate : 75Hz Response Rate : 4ms GTG
The Apple Magic Mouse (USB-C version) is a sleek, minimalist multi-touch wireless mouse built for Mac users. It offers smooth gesture support, Bluetooth connectivity and a built-in rechargeable battery — a great choice if you prefer a clean desk setup and full compatibility with macOS and iPadOS. General Name: Magic Mouse (USB-C) — part of Apple’s pointing-device lineup. Wireless connectivity: Bluetooth. Rechargeable battery: built-in, no disposable AA cells. Charging / port: USB-C port (bottom of mouse) for pairing and charging. Compatibility: Requires a Mac with macOS 15.1 or later, or an iPad with iPadOS 18.1 or later. Size & Weight Height: ~0.85 inch (2.16 cm) Width: ~2.25 inch (5.71 cm) Depth: ~4.47 inch (11.35 cm) Weight: ~0.22 pound (0.099 kg) (varies slightly by manufacturing) Features Multi-Touch surface: supports gestures such as swiping between pages, scrolling through documents, zooming. Glide / foot design: optimized for smooth movement across desktop surfaces. Rechargeable battery life: about a month or more between charges (typical use) per Apple spec. Used Condition ConsiderationsSince you’re specifying a used unit: Check for wear on the bottom feet / skates — these degrade and affect glide. Verify battery capacity / health (rechargeable batteries age). Confirm the port is functioning (USB-C) and Bluetooth connectivity is stable. Look for signs of excessive surface scratches on the multi-touch top — may impair gestures. Ensure the firmware / Mac recognizes it fully (gestures working). Upgradability / Limitations Not user-upgradable: You cannot replace the internal battery or change internals easily. Design limitation: The USB-C port remains on the bottom of the mouse, meaning you cannot use it while charging unless you flip it. This design is still criticized. Ergonomics: The flat, low-profile design is stylish but may not suit extended-use comfort for some users.
The LG 34WQ650-W UltraWide 34-inch 100Hz Full HD IPS Monitor delivers immersive visuals and smooth performance for work, entertainment, and gaming. Its large 34-inch ultra-wide screen gives you extra space to multitask, watch movies, and play games with a broader field of view. Moreover, the Full HD resolution ensures clear and detailed images so your content looks sharp and vibrant. This monitor features an IPS panel that provides wide viewing angles and consistent color accuracy from nearly every angle. Additionally, the 100Hz refresh rate offers smoother motion compared to standard monitors, making gameplay and video playback feel more fluid. The sleek white design fits modern setups, whether in home offices, workstations, or gaming desks. The LG 34WQ650-W includes multiple connectivity options, making it easy to connect laptops, PCs, and consoles. Furthermore, the ergonomic tilt adjustment helps maintain comfortable viewing positions during long sessions. Therefore, it is ideal for students, professionals, and casual gamers seeking a versatile and immersive display. Finally, it combines wide visuals, smooth performance, and practical design for everyday use. Specifications: 34″ UltraWide Full HD IPS monitor 100Hz refresh rate for smooth motion Wide viewing angles with accurate colors Sleek white design with versatile connectivity Ideal for work, entertainment, and gaming
OEM-quality trackpad replacement (without flex cable) for MacBook Air 13.3″ M1 (Model A2337, EMC 3598)—available in Space Gray, Gold, and Silver finishes—engineered for precise Force Touch response, smooth multi-touch gestures, and perfect color-matched integration. Compatible With: MacBook Air 13.3-inch (2020, Model A2337, EMC 3598) with Apple M1 chip. Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting brackets. Intended for professional technicians who will reuse or transfer the original internal components. Color Options: Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Space Gray – matches Space Gray and Midnight finishes Gold – matches Gold MacBook Air Silver – matches Silver and Starlight finishes Each variant is finished to OEM specifications for seamless visual continuity with the lower case. Force Touch Support: Fully compatible with pressure-sensitive input and haptic feedback when used with the original Taptic Engine and logic board—ensuring full macOS gesture functionality (e.g., Force Click, Look Up, pressure-sensitive drawing). Precision Engineering: Features the same smooth glass surface, curvature, and micro-click mechanism as Apple’s original—delivering consistent tracking accuracy and tactile feel. Installation Requirements: Requires complete bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Adhesive must be applied precisely to maintain structural integrity and sensor alignment. Recommended for certified or experienced repair technicians only. Important: This is a bare trackpad assembly—not a plug-and-play module. Functionality depends on correct integration with original electronics.
The Moxom MX-ST16 is a 12-in-1 safety power strip with 4 AC outlets, 7 USB-A ports, and 1 USB-C PD port. It supports up to 2500W / 10A total load and provides fast USB charging (PD 20W + QC 18W), making it a practical charging hub for home, office, and desk setups. ⚡ 12-in-1 Multi-Output Design: 4 AC sockets + 7 USB-A + 1 USB-C PD allow powering and charging many devices at once. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🛡️ Multi-Safety Protection: Overload protection, surge/over-voltage protection, over-current and overheating protection, plus foreign-object detection. 👶 Child-Safety Shutters: Safety doors on AC outlets reduce accidental contact. ⏻ One-Key Master Switch: Single button controls all outlets for easy power cut-off. 📏 Long Extension Cord: About 2 meters for flexible placement. 🧊 Heat-Resistant Build: ABS + PC construction designed for durability under continuous load.
The ViewSonic VX3211-4K-mhd 32″ 4K Monitor is designed to transform your visual experience. Whether you’re working, gaming, or watching movies, this monitor delivers crystal-clear images with incredible detail. Featuring a stunning 32-inch 4K UHD display, the ViewSonic VX3211-4K-mhd provides four times the resolution of Full HD. This means you can enjoy sharper images, vibrant colors, and exceptional clarity, making every detail come to life. The ViewSonic VX3211-4K-mhd supports a wide color gamut, ensuring that colors are accurate and true to life. This makes it an excellent choice for graphic designers, photographers, and video editors who need precise color reproduction. With multiple connectivity options, including HDMI, DisplayPort, and Mini DisplayPort, the ViewSonic VX3211-4K-mhd offers versatility for connecting various devices. Whether you’re connecting a computer, gaming console, or other multimedia devices, this monitor has you covered. The ViewSonic VX3211-4K-mhd also features advanced eye care technology. Flicker-Free and Blue Light Filter functions help reduce eye strain during extended viewing sessions, making it comfortable for long hours of work or entertainment. This monitor is also designed with an ultra-slim bezel, offering a sleek and modern look that complements any workspace or gaming setup. Its VESA compatibility allows for easy mounting, giving you the flexibility to set it up the way you like. In conclusion, the ViewSonic VX3211-4K-mhd 32″ 4K Monitor offers stunning visuals, vibrant colors, and versatile connectivity. Upgrade your display today and experience the difference that 4K resolution can make. Specifications: Display : 32″ UHD Resolution : 4K (3840×2160) Refresh Rate : 60Hz Response Rate : 3ms
