LG 27 inch 4K IPS Monitor 27UP850N-W is designed for sharp visuals, productivity, and content work. It features a 27-inch UHD IPS display with accurate color performance. Additionally, it supports HDR10 and USB Type-C connectivity. Therefore, it works well for office use, creative tasks, and media viewing. The LG 27UP850N-W delivers 3840 × 2160 resolution with a 60Hz refresh rate and 5ms response time. Moreover, it includes VESA DisplayHDR 400 and DCI-P3 95% color coverage for improved color accuracy. It also provides USB-C with up to 90W power delivery, HDMI, and DisplayPort inputs. In addition, it supports AMD FreeSync for smoother visuals during light gaming and video playback. Furthermore, it includes ergonomic adjustments such as height, tilt, and pivot support. As a result, users can maintain a comfortable viewing position during long work sessions. It also includes built-in features like Reader Mode and Black Stabilizer for eye comfort and better detail visibility. manufacturer link Specifications: 27-inch 4K UHD (3840 × 2160) IPS display VESA DisplayHDR 400 with DCI-P3 95% color gamut USB Type-C with up to 90W power delivery 60Hz refresh rate with AMD FreeSync support Height, tilt, and pivot adjustable ergonomic stand
The Lenovo Legion 24-10 23.8″ FHD Gaming Monitor 68C4GAC4EU is built for competitive gaming and smooth visual performance. It features a Full HD resolution with a fast refresh rate designed for esports titles and high-FPS gameplay. Additionally, its compact 23.8-inch size supports focused desk setups. This monitor delivers a 1920 × 1080 IPS display with a 240Hz refresh rate. Moreover, it includes a 0.5ms MPRT response time for reduced motion blur during fast scenes. The Lenovo Legion 24-10 supports 99% sRGB color coverage for consistent and accurate colors. Therefore, it works well for both gaming and general multimedia use. It also features wide 178° viewing angles for stable image quality from different positions. It includes AMD FreeSync Premium support to reduce screen tearing and stuttering. Additionally, it uses adaptive sync technology for smoother frame delivery in supported games. The Lenovo Legion 24-10 23.8″ FHD Gaming Monitor 68C4GAC4EU focuses on speed, responsiveness, and smooth gameplay for competitive users who need consistent high-refresh performance. Specifications: 23.8-inch Full HD (1920 × 1080) IPS display 240Hz refresh rate for smooth gaming performance 0.5ms MPRT response time for reduced motion blur 99% sRGB color gamut for accurate color reproduction AMD FreeSync Premium for tear-free gameplay
This replacement touchpad for MacBook Air A2179 comes in Rose Gold and is sold without the flex cable. Perfect for restoring smooth trackpad performance, it’s ideal for repair technicians and users replacing a damaged or non-working touchpad. The MacBook Air A2179 Touchpad (Rose Gold) is a high-quality replacement part designed to restore full trackpad functionality to your laptop. Whether your original touchpad is unresponsive, physically damaged, or experiencing tracking issues, this replacement provides a reliable solution. Please note that this unit is without the flex cable, meaning it requires the original flex or a separate replacement flex for installation. Ideal for repair shops and technicians, it ensures smooth navigation and precise control. Compatible with MacBook Air A2179 Rose Gold Color Match for original look and finish Replacement Touchpad Only (without flex cable) Restores Smooth Trackpad Functionality Precision Tracking & Gesture Support (when installed correctly) Ideal for Repairs & Replacements High-Quality Build designed for durability and long use Designed specifically for Apple MacBook Air A2179 models. Recommended for technicians and repair shops or users replacing a faulty touchpad. Ensure compatibility before purchase and note that a flex cable is required for installation.
The Xprinter XP-365B is a compact thermal label printer designed for barcode, shipping, and product labeling. It supports thermal direct printing, USB connectivity, and 58–108mm label widths, making it suitable for retail, logistics, warehousing, and eCommerce operations. Driver Support: Seagull Driver, Xprinter Driver The Xprinter XP-365B is a high-efficiency thermal label printer designed for fast and reliable label printing. It uses direct thermal technology, eliminating the need for ink or toner. With support for a wide range of label types and sizes, the XP-365B is ideal for shipping labels, barcode labels, price tags, shelf labels, and warehouse identification. ⚡ Fast Printing: Up to 127 mm/s for quick label production. 🧾 Flexible Media Support: Works with different label sizes and roll types (gap, continuous, black-mark). 💸 No Ink Needed: Direct thermal technology reduces long-term printing costs. 🖥️ Wide Compatibility: Works with Windows, Linux, and many POS/eCommerce systems. 🔧 Easy Setup: Plug-and-play USB connection with simple driver installation. 🏷️ Perfect for Business Use: Ideal for shipping labels, barcode tags, supermarket labels, and warehouse management.
Samsung Odyssey G5 G50F 32″ QHD Monitor delivers sharp visuals and smooth gameplay for serious gamers. It features a 32-inch 2K flat display with high resolution. As a result, games look more detailed and immersive. Moreover, the VA panel ensures consistent colors and wide viewing angles. It maintains clear visuals from different positions. HDR10 support enhances brightness and contrast for deeper blacks and brighter highlights. Furthermore, the 165Hz refresh rate and 1ms response time reduce motion blur and lag. NVIDIA G-Sync compatibility and AMD FreeSync Premium help deliver smooth and stable frames. Finally, Samsung Odyssey G5 G50F 32″ Monitor includes gaming features like Black Equalizer and Virtual Aim Point. These improve visibility and accuracy. Players gain better control and performance in every match. Specifications: 32-inch QHD (2560×1440) display with sharp visuals and wide viewing angles VA panel ensures consistent colors and clear images from multiple angles 165Hz refresh rate and 1ms response time for smooth, responsive gaming HDR10 support for enhanced brightness, contrast, and realistic visuals Gaming tools like Black Equalizer and Virtual Aim Point for better accuracy
256GB SSD Apple Macbook Pro Air 2013 2014 2015 A1502 A1398 A1466 A1465 | Samsung MZ-JPU512T/A06 | 655-1805D ORIGINAL APPLE PART (Apple sources their SSD’s for MacBooks from Samsung) A1502 – A1398 – A1465 – A1466 100% TESTED WORKING Please check compatibility below before you make your purchase: COMPATIBILITY: MacBook Pro Retina Late 2013 – Mid-2015 MacBookPro11,1 (A1502) – ME864LL/A, ME866LL/A, ME867LL/A, MGX72LL/A, MGX92LL/A, & MGXD2LL/A MacBookPro11,2 (A1398) – ME293LL/A & MGXA2LL/A MacBookPro11,3 (A1398) – ME294LL/A, ME874LL/A, MGXC2LL/A, & MGXG2LL/A MacBookPro11,4 (A1398) – MJLQ2LL/A MacBookPro11,5 (A1398) – MJLT2LL/A & MJLU2LL/A MacBookPro12,1 (A1502) – MF839LL/A, MF841LL/A, & MF843LL/A MacBook Air Mid-2013 – Late 2015 MacBookAir6,1 (A1465) – MD711LL/A, MD760LL/A, MD711LL/B, & MF067LL/A MacBookAir6,2 (A1466) – MD760LL/A, MD760LL/B, & MF068LL/A MacBookAir7,1 (A1465) – MJMVM2LL/A MacBookAir7,2 (A1466) – MJVE2LL/A Model Identifier: Samsung Manufacturer Part# MZ-JPU512T/A06
The Samsung 65″ Neo QLED QN70F 4K Vision AI Smart TV QA65QN70FAUXTW delivers a premium viewing experience with advanced Neo QLED technology. It produces bright, sharp, and highly detailed images with strong contrast, so movies, sports, and games look clear and immersive on the 65-inch screen. Neo QLED technology uses Quantum Mini LEDs to improve brightness control and contrast accuracy. As a result, dark scenes appear deeper while bright scenes stay vivid and balanced. This creates a more realistic picture across different types of content. Vision AI enhances picture and sound in real time. It analyzes each scene and automatically adjusts brightness, sharpness, and color. Therefore, the TV consistently delivers optimized visuals without manual settings. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity and detail. HDR support expands brightness range and color depth, making visuals more dynamic and lifelike. Fast motion handling also improves clarity, which enhances sports and action viewing. 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 65 Neo QLED QN70F 4K Vision AI Smart TV QA65QN70FAUXTW a modern and premium appearance. Overall, this Samsung Neo QLED TV combines strong brightness performance, AI optimization, and smart connectivity for a powerful entertainment experience. Specifications: Neo QLED technology delivers bright, sharp, and detailed visuals 65-inch 4K display provides immersive viewing experience Vision AI enhances picture and sound automatically in real time HDR improves contrast, brightness, and color depth Smart TV platform supports apps, streaming, and smart features
• Desk Stand LED / LCD / Plasma fits most 17″ to 30″ displays • Articulating stand with Rotation 360°, Swivel ±90° and Tilt angle +85° to 30° • Upright lift distance 10 ” (260mm) • Maximum extension 21 ” (535mm) • Supports load from 2 to 9 kg • Mounting VESA compliance 75×75, 100×100 mm 1 Year Warranty manufacturer link
LG 35 inch Curved UltraWide QHD Monitor 35WN65C-B is built for multitasking, productivity, and immersive viewing. It features a 35-inch curved VA display with UltraWide QHD resolution for a wider workspace. Additionally, it supports HDR10 and sRGB 99% color coverage. Therefore, it works well for office tasks, content creation, and entertainment use. The LG 35 inch Curved UltraWide QHD Monitor 35WN65C-B delivers 3440 x 1440 resolution with a 100Hz refresh rate and 5ms response time. Moreover, it includes AMD FreeSync support for smoother visuals during fast-moving content. The monitor provides USB Type-C, two HDMI ports, one DisplayPort, and headphone out for flexible connectivity. In addition, the stand supports height and tilt adjustment for better comfort during long sessions. Furthermore, the curved screen improves immersion while the UltraWide format helps users manage multiple windows at once. As a result, it improves workflow and viewing comfort in both work and entertainment setups. It also supports VESA wall mounting for flexible desk arrangement. Specifications: 35-inch curved VA UltraWide QHD display 3440 x 1440 resolution with 100Hz refresh rate HDR10 support with sRGB 99% color coverage USB Type-C, HDMI, and DisplayPort connectivity Height and tilt adjustable stand
The Samsung Essential 24″ 75Hz Curved Monitor offers an immersive viewing experience for work, entertainment, or gaming. Its sleek design fits perfectly in any setup, adding style and functionality. This 24-inch curved monitor enhances your focus by wrapping the screen around your field of view. The curvature minimizes distractions, creating a more immersive and comfortable viewing experience. Whether you’re watching movies or multitasking, the curved design makes a difference. With a 75Hz refresh rate, this monitor ensures smooth visuals and reduced screen tearing. This feature is perfect for casual gamers and those who enjoy seamless video playback. The monitor’s Full HD resolution delivers crisp and vivid details, making everything look sharp and vibrant. The Samsung Essential 24″ 75Hz Curved Monitor comes equipped with Eye Saver Mode and Flicker-Free technology. These features reduce eye strain during extended use, helping you stay productive for longer. Whether you’re working or binge-watching, your eyes will thank you. Connectivity is simple with HDMI and VGA ports, allowing easy setup with various devices. Its compact stand provides stability and saves desk space, keeping your workstation tidy and organized. This monitor’s modern design and slim bezels make it a stylish addition to any desk. It’s lightweight and easy to adjust, offering flexibility for home or office use. Upgrade your visual experience today with the Samsung Essential 24″ 75Hz Curved Monitor. It’s an affordable and reliable choice for everyday use. Specifications: Display : 24″ VA Resolution : FHD (1920×1080) Curvature : 1800R Refresh Rate : 75Hz Response Rate : 4ms GTG
Genuine-spec US layout (QWERTY) black keyboard replacement for MacBook Air 13.6″ and 15″ models (2023–2025, M2/M3/M4 chips)—featuring Apple’s Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) Keyboard Layout: Standard US English (QWERTY) with wide Enter key, dedicated left/right arrow keys in inverted-T layout, and full function row—matches Apple’s original US configuration. Design: Apple’s Magic Keyboard with scissor-switch mechanism—providing quiet, stable, and responsive typing with 1mm key travel and enhanced durability. Features: Integrated backlighting for low-light use, ambient light sensor compatibility, and OEM-style flex cable for direct logic board connection. Color: Sleek black keycaps—ideal for Space Gray and Midnight finishes, and visually consistent across all color variants. Precision Fit: Engineered to exact Apple specifications for alignment, key spacing, and mounting—ensures seamless integration into the original top case. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful removal, and professional-grade re-adhesion. Recommended for experienced technicians only.
The MSI MAG32URDF E16 gaming monitor delivers flexible performance with dual-mode display support. It features a large 32-inch screen that adapts to different gaming needs. Therefore, users can switch between ultra-fast speed and high-resolution clarity. Moreover, the monitor supports Full HD at 320Hz for competitive gaming. This ensures smooth motion and fast response during intense gameplay. In addition, it offers 4K UHD at 160Hz for detailed visuals and immersive experiences. The panel provides sharp image quality with accurate colors and wide viewing angles. As a result, it suits both gaming and content viewing. Furthermore, adaptive sync technology helps reduce screen tearing and stuttering. Connectivity options support easy integration with modern devices. Consequently, the MSI MAG32URDF E16 gaming monitor delivers both speed and visual quality in one solution. The MSI MAG32URDF E16 gaming monitor is ideal for users who want both high refresh rates and 4K clarity in one display. Specifications: 32-inch display with dual-mode resolution support 4K UHD (3840 × 2160) at 160Hz refresh rate Full HD (1920 × 1080) at 320Hz refresh rate Adaptive sync support for smooth performance Multiple input ports for flexible connectivity
The ViewSonic VA2409-H 24″ FHD 750Hz Monitor delivers clear visuals for daily work and home use. Its Full HD resolution shows sharp text and detailed images. The 24-inch screen offers a perfect balance between size and comfort. This makes it ideal for desks with limited space. Moreover, the ViewSonic VA2409-H 24″ FHD 750Hz Monitor offers an ultra-smooth refresh experience for fast screen motion. Scrolling becomes very smooth and clean. Videos appear fluid with less blur. As a result, motion looks natural and easy on the eyes. In addition, the monitor uses IPS panel technology for wide viewing angles. Colors stay accurate from every direction. This helps during shared screen use and teamwork. The image remains bright and steady at all times. Furthermore, the ViewSonic VA2409-H 24″ FHD 750Hz Monitor includes eye comfort features for daily protection. The low blue light mode helps reduce eye strain. The flicker-free design supports long viewing hours without discomfort. These features improve comfort during long work sessions. Also, the monitor supports flexible connection options for easy setup. It includes HDMI and VGA for wide device compatibility. You can connect laptops, desktops, and media devices easily. Switching between devices becomes fast and simple. In addition, the slim bezel design gives a clean and modern look. It fits well in both home and office setups. The stand supports tilt adjustment for basic viewing comfort. Wall mounting is also supported for a clean desk setup. Moreover, the display works well for office tasks, browsing, and media viewing. Text appears sharp and easy to read. Daily tasks feel smoother and more organized. The monitor blends easily into any workspace style. Overall, the ViewSonic VA2409-H 24″ FHD 750Hz Monitor offers clarity, smooth motion, and daily comfort. It supports work, study, and entertainment with ease. This monitor is a strong choice for users seeking smooth and simple screen performance. Specifications: Display : 24″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Time : 3ms
The Samsung Neo QLED 8K QN900F TV delivers ultra-sharp visuals with advanced AI technology. First, it features 8K resolution for exceptional detail and clarity. In addition, the AI upscaling improves lower resolution content for a near 8K experience. Moreover, the glare-free screen reduces reflections for better viewing in bright rooms. Finally, the Neo QLED technology enhances brightness and contrast for lifelike images. The sleek design and smart features make it ideal for premium home entertainment. Specifications: 8K resolution for ultra-detailed and sharp picture quality AI upscaling improves lower resolution content to near 8K Glare-free screen reduces reflections for better visibility Neo QLED technology enhances brightness and contrast Smart TV features for streaming and easy content access
TP-Link 8 Port Gigabit Ethernet Network Switch | Plug and Play | Desktop or Wall-Mount | Plastic Case Ethernet Splitter | Fanless | Traffic Optimization | Unmanaged (TL-SG1008D),Black About this item PLUG-AND-PLAY – Easy setup with no configuration or no software needed ETHERNET SPLITTER – Connectivity to your router or modem router for additional wired connections (laptop, gaming console, printer, etc) 8 Ports GIGABIT ETHERNET – 8 10/100/1000 Mbps Gigabit auto-negotiation RJ45 ports greatly expand network capacity COST EFFECTIVE – Fanless Quiet Design, Desktop design RELIABLE – IEEE 802.3x flow control provides reliable data transfer UP to 80% Power Saving – Automatically adjusts power consumption according to the link status and cable length AUTO-NEGOTIATION – Supports Auto-MDI/MDIX, eliminating the need for crossover cables
The MSI MPG 242R X60N 600Hz FHD Rapid TN Gaming Monitor delivers ultra‑fast performance and fluid visuals for competitive gamers. Its 24‑inch Full HD display combines high refresh rates with sharp clarity to make every frame feel smooth and responsive. Moreover, the blazing 600Hz refresh rate helps reduce motion blur so you can react faster in fast‑paced games and esports titles. This gaming monitor features a Rapid TN panel that offers extremely quick response times, minimizing ghosting and motion artifacts during intense action. Additionally, the crisp visuals and rich colors bring games and media to life, enhancing your overall experience. The sleek design and thin bezels provide a clean and immersive view that fits perfectly into any gaming setup. The MSI MPG 242R X60N includes multiple connectivity options, allowing easy connection to gaming PCs, consoles, and other devices. Furthermore, ergonomic adjustments help you find a comfortable viewing angle during long sessions. Therefore, it is ideal for esports players and competitive gamers who demand peak performance. Finally, it combines ultra‑fast refresh rates, responsive visuals, and versatile design for superior gaming experiences. Specifications: 24″ FHD gaming monitor 600Hz refresh rate for ultra‑smooth gameplay Rapid TN panel for quick response times Immersive visuals and sleek design Multiple connectivity options
Genuine-spec bilingual UK/Arabic layout keyboard replacement for MacBook Pro 13″ (Model A1708, 2016–2017)—featuring Apple’s second-generation Butterfly mechanism, backlighting, and OEM fit for seamless typing in both English and Arabic. Compatible With: MacBook Pro 13-inch with Touch Bar (2016 & 2017 models, A1708, Model Identifiers MacBookPro13,1 / MacBookPro14,1). Layout: Bilingual UK/Arabic—primary legends in Arabic, secondary (top-left) legends in UK English (QWERTY). Includes £ symbol, Arabic numerals (٠١٢٣…), and standard Arabic character set aligned with Apple’s regional configuration. Keyboard Type: Apple’s 2nd-generation Butterfly mechanism—thin profile with reduced key travel; requires careful handling and clean environment during installation. Integrated Features: Backlit keys (essential for low-light use—legends remain legible) Ambient light sensor support Original-style ribbon cable connector for direct logic board attachment Backlit keys (essential for low-light use—legends remain legible) Ambient light sensor support Original-style ribbon cable connector for direct logic board attachment Build & Fit: Precision-engineered to match Apple’s original dimensions, key alignment, and top-case curvature—ensures consistent actuation and aesthetic continuity. Installation Note: Keyboard is fully glued into the top case. Replacement requires complete disassembly, meticulous adhesive removal, and professional re-gluing. Recommended for certified or highly experienced technicians only.
The BenQ 27-inch 4K Monitor for MacBook BenQ 27-inch 4K Monitor for MacBook overview for creative professionals is a 27-inch UHD display designed for MacBook users who need sharp visuals, accurate colors, and a spacious workspace. It features a 3840 × 2160 resolution that delivers detailed images for photo editing, video production, graphic design, and everyday productivity. The MA270U features a matte display surface that helps reduce reflections and glare, while the MA270UP features a glossy display surface that enhances contrast and image clarity. Therefore, both models provide an optimized viewing experience for different working environments. The display performance and color accuracy deliver clear details and consistent image quality across professional workflows. Moreover, the IPS panel provides wide viewing angles and reliable color reproduction for creative tasks and multitasking. As a result, users can enjoy a precise and comfortable viewing experience. The connectivity and ergonomic design support efficient daily use. In addition, USB-C connectivity provides convenient connection with modern MacBook devices, while HDMI and USB ports improve compatibility with other equipment. Therefore, the monitor supports clean and flexible workstation setups. The workflow compatibility supports macOS and Windows systems for creative work, office applications, and entertainment. Furthermore, the 27-inch 4K display provides enough space for multitasking while maintaining excellent visual clarity. Specifications: Display size: 27-inch IPS panel Resolution: 3840 × 2160 (4K UHD) Models: MA270U Matte display and MA270UP Glossy display Connectivity: USB-C, HDMI, and USB ports Warranty: 3 Years MA270U , MA270UP
The Lenovo Legion R24e is a 23.8-inch Full HD gaming monitor designed for smooth competitive gameplay and responsive visual performance. It uses an IPS panel with a high refresh rate for improved motion clarity and wide viewing angles. Additionally, its slim NearEdgeless design fits modern gaming and workstation setups. This monitor delivers a 1920 × 1080 resolution with up to 180Hz refresh rate support. Moreover, it features a 0.5ms MPRT response time to reduce motion blur during fast-paced gaming sessions. The Lenovo Legion R24e also supports AMD FreeSync technology for smoother gameplay with reduced screen tearing. The IPS panel provides 99% sRGB color coverage and wide 178-degree viewing angles for accurate and consistent image quality. Therefore, the monitor works well for gaming, streaming, and everyday multimedia tasks. It also includes anti-glare screen treatment for improved viewing comfort. The Lenovo Legion R24e includes HDMI 2.1 TMDS and DisplayPort 1.4 connectivity for gaming PCs and consoles. Additionally, the ergonomic stand supports tilt, swivel, pivot, and height adjustment for flexible positioning. VESA mount compatibility also allows wall or monitor arm installation. Community feedback highlights the monitor’s strong color quality, smooth refresh rate performance, and good value for competitive gaming setups. Specifications: 23.8-inch Full HD IPS gaming display 180Hz refresh rate for smooth gameplay 0.5ms MPRT response time for reduced blur AMD FreeSync support for tear-free visuals Ergonomic stand with height, tilt, swivel, and pivot adjustment
Ready to take your gaming setup to the next level? Look no further than the ViewSonic 32” 75Hz FHD Monitor VA3209-MH. This monitor offers a perfect blend of performance and immersion for gamers. With a generous 32-inch display, immerse yourself in stunning Full HD visuals. Every detail pops with clarity and vibrancy, bringing your favorite games to life in vivid color. Transitioning to performance, the VA3209-MH boasts a smooth 75Hz refresh rate, ensuring fluid motion and reduced motion blur during fast-paced gaming action. Say goodbye to screen tearing and hello to seamless gameplay. Moreover, this monitor features built-in speakers, eliminating the need for external audio devices. Immerse yourself in crystal-clear sound as you explore virtual worlds and engage in epic battles. The ViewSonic 32” 75Hz FHD Monitor VA3209-MH is designed with your comfort in mind. Its ergonomic stand allows for customizable tilt adjustments, ensuring optimal viewing angles for extended gaming sessions. In addition, connectivity options such as HDMI and VGA ports offer versatile compatibility with various gaming consoles and devices. Switch between platforms seamlessly and enjoy your favorite games without limitations. In conclusion, the ViewSonic 32” FHD Monitor VA3209-MH is a game-changer for gamers seeking immersive experiences. With its stunning visuals, smooth performance, and built-in speakers, it delivers everything you need for an unforgettable gaming journey. Upgrade your setup today and elevate your gaming to new heights. Specifications: Display : 32″ IPS Resolution : FHD(1920×1080) Refresh Rate : 75Hz Response Rate : 4ms
