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 Imported from Mojitech: https://mojitech.net/shop/brands/msi-brands/msi-mag-275qpf-x30-0-5ms-2k/
The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor is built for gamers who want smooth and fast gameplay. It features a 25-inch display with Full HD resolution for clear and detailed visuals. This monitor gives you sharp images with excellent color quality. With its ultra-fast 200Hz refresh rate, the Gigabyte 25″ 200Hz GS25F2 Gaming Monitor reduces motion blur and screen tearing. Gamers will enjoy smooth and responsive action in every game they play. It also features a 1ms response time, which helps reduce lag and ghosting during fast movements. As a result, every action appears more accurate and real-time. The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor supports AMD FreeSync for tear-free visuals. This ensures that the screen refresh rate matches the graphics card’s performance. Moreover, the monitor has built-in gaming features like crosshairs and timers to improve your gaming experience. These tools give players an edge during competitive gameplay. The sleek and modern design of this gaming monitor fits perfectly in any gaming setup. It includes a thin bezel for a more immersive viewing experience. Additionally, it has multiple input ports like HDMI and DisplayPort for easy connection to your devices. You can connect it to your PC, console, or laptop quickly. The Gigabyte 25″ 200Hz GS25F2 Gaming Monitor is also designed for long use. It includes low blue light and flicker-free technology to reduce eye strain. In conclusion, this gaming monitor is ideal for gamers who want speed, clarity, and comfort. It’s a great upgrade for serious and casual gamers alike. Specifications: Display : 24.5″ SS IPS Resolution : 1920 x 1080(FHD) Refresh Rate : 200 Hz Response Rate : 1ms (GTG) Speaker : 2x 2W Imported from Mojitech: https://mojitech.net/shop/brands/gigabyte/gigabyte-25-200hz-gs25f2-gaming-monitor/
The MSI MAG 274QPF X30MV 27″ Gaming Monitor delivers sharp 2K visuals with a 300Hz refresh rate. It ensures ultra-smooth gameplay for competitive gaming. Its IPS panel provides vivid colors and wide viewing angles. This guarantees consistent image quality from multiple positions. The monitor supports Adaptive Sync to reduce screen tearing and stuttering. It enhances fluidity during fast-paced gaming sessions. It also includes ergonomic adjustments for tilt, swivel, and height. Cable management features help maintain a clean and organized setup. With low blue light and anti-flicker technology, it reduces eye strain during long sessions. The MSI MAG 274QPF X30MV 27″ Gaming Monitor is ideal for users seeking high refresh rate, sharp resolution, and fluid performance. Specifications: 27″ 2K IPS panel with vivid colors and wide viewing angles 300Hz refresh rate for ultra-smooth gameplay Adaptive Sync to reduce screen tearing and stuttering Ergonomic adjustments for tilt, swivel, and height Low blue light and anti-flicker technology for eye comfort Imported from Mojitech: https://mojitech.net/shop/brands/msi-brands/msi-mag-274qpf-x30mv-monitor/
Are you in search of a monitor that elevates your gaming experience? Look no further than the Philips 27″ 75Hz 27E1N5600HE LCD Monitor. Designed with gamers in mind, this monitor offers a perfect blend of performance and visual quality. Featuring a generous 27-inch display, the Philips monitor provides ample screen real estate for immersive gaming sessions. Lose yourself in stunning visuals and vibrant colors that bring your games to life. With a refresh rate of 75Hz, this monitor delivers smoother gameplay compared to standard displays. Say goodbye to motion blur and screen tearing, and enjoy a more responsive gaming experience. Equipped with Adaptive-Sync technology, the Philips monitor synchronizes the refresh rate with your GPU, reducing stuttering and input lag. Enjoy seamless gameplay, whether you’re exploring vast landscapes or engaging in fast-paced action. The ultra-narrow bezel design creates a seamless multi-monitor setup, perfect for immersive gaming or multitasking. Dive into your favorite games without distractions, and enjoy a more immersive gaming experience. Designed for comfort and convenience, the Philips monitor features adjustable tilt for optimal viewing angles. Whether you’re sitting at your desk or lounging in your gaming chair, you can find the perfect position for extended gaming sessions. In summary, the Philips 27″ 75Hz 27E1N5600HE LCD Monitor is a must-have for gamers seeking smooth performance and immersive visuals. Upgrade your gaming setup with this feature-packed monitor and take your gaming experience to new heights. Specifications: Display : 27″ IPS Resolution : 2560 x 1440 QHD Refresh Rate : 75hz Response Rater : 4ms Imported from Mojitech: https://mojitech.net/shop/brands/philips/philips-27-75hz-27e1n5600he/
Premium bilingual keyboard replacement for MacBook Pro 13″ (A1278, 2009–2012) — choose US/Arabic or UK/Arabic layout. Features durable scissor-switch keys, OEM fit, and clear dual-language legends for seamless typing in English and Arabic. Compatible With: MacBook Pro 13-inch (Model A1278) from Late 2009, Mid 2010, Early 2011, and Mid 2012 (Model Identifiers: MacBookPro5,5, 6,2, 8,1) Layout Options (select at purchase): US/Arabic: Primary legends in Arabic, secondary (top-left) in US QWERTY — includes @, #, and standard US symbols. UK/Arabic: Primary legends in Arabic, secondary in UK QWERTY — includes £ symbol, taller Enter key, and UK-specific punctuation. Both versions feature full Arabic character set US/Arabic: Primary legends in Arabic, secondary (top-left) in US QWERTY — includes @, #, and standard US symbols. UK/Arabic: Primary legends in Arabic, secondary in UK QWERTY — includes £ symbol, taller Enter key, and UK-specific punctuation. Both versions feature full Arabic character set Keyboard Type: Traditional scissor-switch mechanism—reliable, tactile, and serviceable (pre-Butterfly design). Backlighting: Included on Early 2011 and Mid 2012 models only. Keycaps are translucent for even lighting. (Note: Late 2009 & Mid 2010 A1278 models did not support backlighting—keyboard will still function, but lighting requires compatible hardware.) Build & Fit: Precision-molded frame with correct screw mounts and alignment pegs—ensures flush, secure installation in the original top case with no rattling. Installation: Keyboard is screw-mounted (no adhesive)—one of the most DIY-friendly MacBook keyboards. Requires top case access and battery disconnect. Suitable for intermediate users or professionals.
The MSI Optix G32C4W 32″ Monitor delivers immersive visuals and smooth performance for gaming and everyday use.It features a 32-inch Full HD curved display that provides a wide field of view and enhanced immersion. Moreover, its high refresh rate ensures fluid motion during fast-paced games and videos. This monitor uses a VA panel for strong contrast and deep colors. Additionally, the fast response time reduces blur and ghosting during competitive gaming. The anti-glare screen helps minimize reflections in bright environments. HDMI and DisplayPort inputs allow easy connection to PCs, laptops, and gaming consoles. Furthermore, the curved design and tilt adjustment help you find a comfortable viewing angle during long sessions. Low blue light and flicker-free technologies reduce eye strain over extended use. This display is ideal for gamers, esports enthusiasts, and home users alike. Therefore, it supports competitive gaming, media streaming, and productivity tasks. Finally, it combines sharp visuals, smooth performance, and comfort features for daily use. Specifications: Screen Size: 32″ Full HD curved VA panel Resolution: 1920 × 1080 Refresh Rate: High for smooth motion Ports: HDMI + DisplayPort Features: Anti-glare, low blue light, flicker-free eye care Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/msi-optix-g32c4w-32-monitor/
WIWU Osun PU Leather Backpack – Stylish and compact bag crafted from water-resistant PU leather; fits 15.6″ laptops yet weighs only ~387 g.Offers organized storage, durable build, and comfy straps—perfect for daily commutes, work, or travel. Model: WIWU Osun PU Leather Notebook Backpack Material: Water-resistant 1680D polyester exterior with upscale PU leather finish Laptop Compartment: Padded sleeve fits up to 15.6″ laptops, shock-resistant protection Design: Compact “mini” size (26.5 × 21 × 6 cm), yet offers large internal capacity Pockets: Front zip pocket for phone and accessories; interior organization for tech and essentials Comfort: Adjustable padded shoulder straps, soft and skin-friendly inner lining Weight: Approximately 387 g (including packing) Extras: Sleek metal WIWU logo; suitable for travel, business, daily commuting
The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro 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 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro 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. Compatible with MacBook Pro with 13-inch Retina display. See this article for more details about choosing the right one. 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. COMPATIBILITY Mac Models: MacBook Pro (Retina, 13-inch, Late 2012 – 2015)
Dell 24 Monitor – E2422HN Functional, space-saving design Convenient connectivity: Connect to current and legacy systems via HDMI, VGA and DP ports. Maximize your desktop: Cut clutter with space-saving features like a compact stand and improved cable management that hides cables while complementing any workspace. Clean, simple design: A slim bezel adds a modern look. Adapts to your needs: Make your workspace your own with VESA-compatible mounts and stands. manufacturer link 1 Year Warranty Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/dell-24-monitor-e2422hn-lebanon-seller/
A1389 A1494 Laptop Battery Replacement for MacBook Pro 15 inch Retina A1398 (Late 2013 & Mid 2014), fit Retina ME293 ME294 MGXA2 MGXC2 MJLQ2 MJLT2 MJLU2 Details : Voltage:11.26V; Capacity: 95Wh; Battery Type: Li-Polymer KINDLY NOTES: Replacement for Apple Macbook Pro 15 inch A1494 A1398 Retina Only fit Late 2013 Mid 2014 Version,Do not fit 2012 & Early 2013 Version Packing: 1 x laptop battery,4 x free screwdrivers Desighed for the original battery 1:1,Please confirm that your laptop’s model number, the original battery’s part number and your laptop’s version correctly
The AOC 24″ 75Hz Monitor is designed to enhance your viewing experience, making it ideal for both work and entertainment. Whether you’re editing documents or watching movies, this monitor delivers vibrant and sharp visuals. With a 24-inch Full HD display, the AOC monitor provides clear and detailed images. The 75Hz refresh rate ensures smooth motion, reducing screen tearing and providing a more enjoyable viewing experience. The AOC 24″ Monitor features an ergonomic design, allowing you to adjust the height, tilt, and swivel for maximum comfort. This ensures you can work or play for extended periods without discomfort. Equipped with multiple connectivity options, including HDMI and VGA ports, the AOC 24″ 75Hz Monitor offers flexibility in connecting to various devices. This makes it easy to set up and use with your computer, gaming console, or other gadgets. The AOC 24″ 75Hz Monitor includes flicker-free technology and a Low Blue Light mode. These features help reduce eye strain during prolonged use, making it a great choice for both work and leisure. With its sleek and modern design, the AOC 24″ Monitor adds a touch of elegance to any workspace or gaming setup. Its slim bezels provide a larger viewing area, enhancing your overall visual experience. In conclusion, the AOC 24″ 75Hz Monitor combines excellent performance, ergonomic design, and modern aesthetics for a superior viewing experience. Upgrade to the AOC 24″ Monitor today and enjoy clear, smooth, and comfortable visuals. Specifications: Display : 23.8″ VA Resolution : 1920×1080 FHD Refresh Rate : 75Hz Response Rate : 4ms Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/aoc-24-75hz-monitor-24b3hm/
Remax F41 6″ Wireless Clamp Fan – USB‑C rechargeable (4,000 mAh), 4 speeds, 720° rotation, up to 3 hrs runtime.Modular 3‑in‑1 design with detachable grille, washable parts, and night‑light feature. Model: Remax F41 6-inch Wireless Air Circulating Clamp Fan Power & Battery: Rechargeable 4,000 mAh battery; USB-C charging (~3 hours to full charge), offers ~3 hours continuous use at high speeds Operation Modes: 4 fan speeds, 3‑in‑1 usage (desktop, clamp, or hanging), 720° wide-angle rotation Design Features: Detachable, washable grille plus built-in warm night light Care Tips: Recharge every two months if unused; avoid inserting objects into blades
The Apple MacBook Pro 16-inch (2019) is powered by an Intel Core i9 processor, paired with 16GB RAM and a fast 512GB SSD for powerful and reliable performance. Designed for professionals and creatives, it features a premium aluminum build, immersive 16-inch Retina display, and dedicated Radeon Pro graphics for demanding workloads.
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 ViewSonic VG2455 24″ FHD 100Hz Monitor delivers clear visuals for office work and daily use. Its Full HD resolution shows sharp text and smooth image detail. The 24-inch screen offers a balanced size for most desks. This makes it ideal for home and professional setups. Moreover, the ViewSonic VG2455 24″ FHD 100Hz Monitor features a smooth 100 Hz refresh rate. This makes scrolling smoother and video playback more fluid. Motion looks cleaner during fast content. In addition, the monitor uses an IPS panel for wide viewing angles. Colors stay accurate even when viewed from the sides. This helps during team work and shared screen tasks. The image remains stable and clear. Furthermore, the ViewSonic VG2455 24″ FHD 100Hz Monitor includes built-in eye care features. Low blue light mode helps reduce eye strain. The flicker-free design supports long viewing without discomfort. This helps protect your eyes every day. Also, the monitor offers flexible connection options. It supports HDMI, DisplayPort, and USB-C in one display. In addition, the stand supports height, tilt, swivel, and pivot adjustment. You can set the screen for full comfort. Vertical mode helps with coding and reading. This improves posture and daily comfort. Moreover, the slim bezel design gives a clean and modern look. It fits well into any professional workspace. The simple design keeps your desk neat and organized. The monitor blends easily with other screens. Overall, the ViewSonic VG2455 24″ FHD 100Hz Monitor delivers comfort, clarity, and smooth daily performance. It improves workflow and reduces eye strain. This monitor is perfect for office users, students, and home professionals needing a reliable display. Specifications: Display : 24″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 100Hz Response Time : 5ms Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/viewsonic-vg2455-24-fhd-100hz-monitor/
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. Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/samsung-viewfinity-s5-34-ultrawide-monitor/
The AOC 27G40 27″ 180Hz Gaming Monitor is built for serious gamers who want fast and smooth performance. It features a 27-inch Fast IPS screen with Full HD resolution. The colors are bright, and the details are sharp from every angle. With a 180Hz refresh rate, your games will run ultra-smooth and clear. Fast motion feels natural with no lag or delay. The 1ms response time helps reduce motion blur and ghosting during fast-paced scenes. Thanks to Adaptive-Sync, you won’t have screen tearing or stuttering. This makes gameplay seamless and enjoyable, even in intense battles. The monitor also supports HDR10 for improved contrast and color accuracy. It covers 128% of the sRGB color space, giving you bold and rich visuals. The screen reaches 300 nits of brightness, so everything stays clear in bright rooms. The AOC 27G40 27″ 180Hz Gaming Monitor includes HDMI 2.0 and DisplayPort 1.4 connections. You can easily connect your PC, console, or other devices. Its ergonomic stand lets you adjust the height, tilt, swivel, and pivot the screen. This helps you find the most comfortable viewing angle. You can also mount it using a VESA-compatible setup for more flexibility. Whether you’re gaming casually or competitively, this gaming monitor delivers excellent speed, clarity, and color. It’s built to meet the demands of modern gaming with style and comfort. Specifications: Display : 27″ Rapid IPS Resolution : 1920×1080 FHD Refresh Rate : 180Hz Response Rate : 0.5ms Speaker : 2W x2 Adjustable : Fully adjustable Imported from Mojitech: https://mojitech.net/shop/brands/aoc/aoc-27g40-27-180hz-gaming-monitor-tax-free/
The LG 27″ 240Hz UltraGear OLED Gaming Monitor | 27GR95QE-B delivers ultra-fast visuals and rich colors for gaming and media.It features a 2560 × 1440 QHD OLED display for deep blacks and vivid images.Moreover, the smooth 240 Hz refresh rate keeps motion fluid during intense play. This monitor has an extremely fast 0.03 ms (GtG) response time to reduce blur and ghosting.Additionally, its OLED panel supports HDR10 for better contrast and more lifelike scenes.Adaptive sync technologies like FreeSync Premium and G-SYNC help reduce screen tearing and stutter. The LG 27″ 240Hz UltraGear OLED Gaming Monitor | 27GR95QE-B includes HDMI and DisplayPort inputs for easy connections.Furthermore, it has USB ports for peripherals and accessories.Anti-glare and wide 178° viewing angles keep images clear from many positions. This gaming monitor fits well on desks, gaming stations, and work setups.Therefore, it works for competitive gamers and creative content use.Finally, this monitor combines speed, picture quality, and flexibility for daily play and entertainment. Specifications: 27″ (26.5″ viewable) QHD 2560 × 1440 OLED display 240 Hz refresh rate and 0.03 ms (GtG) response time HDR10 with 1.5M:1 contrast and DCI-P3 98.5 % color gamut 2× HDMI + DisplayPort + USB-B upstream + 2× USB-A downstream Anti-glare panel with 178° wide viewing and adaptive sync Imported from Mojitech: https://mojitech.net/shop/brands/lg/lg-27-240hz-ultragear-oled-27gr95qe-b/
Philips 271V8W is a 27-inch Full HD LCD monitor designed for everyday use. It delivers a 1920 × 1080 resolution with a 75Hz refresh rate and IPS panel for wide viewing angles and consistent color performance. Additionally, it includes Adaptive Sync technology for smoother visuals and reduced screen tearing. Moreover, it supports Flicker-Free technology and LowBlue Mode to help reduce eye strain during long use. It also features an anti-glare coating for more comfortable viewing in bright environments. SmartContrast adjusts brightness and contrast based on displayed content for improved image clarity. The Philips 271V8W monitor provides a simple and reliable 27-inch IPS display experience with smooth 75Hz performance for daily tasks. Specifications: 27-inch IPS panel with Full HD 1920 × 1080 resolution 75Hz refresh rate for smooth daily visuals Adaptive Sync for reduced screen tearing Flicker-Free technology for eye comfort LowBlue Mode and anti-glare coating for reduced eye strain Imported from Mojitech: https://mojitech.net/shop/peripherals/monitors/philips-271v8w-monitor/
The Meetion Mini 4000 Black is a compact wireless keyboard and mouse combo designed for clean and convenient everyday use. With a mini-space-saving layout and stable wireless connection, it’s perfect for office work, home setups, and laptop users who want a neat, clutter-free desk. The Meetion Mini 4000 is a stylish and practical wireless keyboard and mouse set made for users who prefer a compact and modern workspace. Its mini keyboard design saves desk space while still offering comfortable typing for daily tasks. The wireless mouse provides smooth control and easy navigation, making this combo ideal for offices, students, and home users. With plug-and-play wireless connectivity, setup is simple—just connect the receiver and start using it instantly. Wireless Keyboard & Mouse Combo for a clean and clutter-free setup Compact Mini Keyboard Design saves space and fits small desks easily Stable Wireless Connection for smooth performance Plug & Play Receiver – quick setup without drivers Smooth Wireless Mouse for accurate control Comfortable Typing Layout for everyday productivity Modern Black Finish suitable for any workspace Ideal for Laptops & Desktops Perfect for office workers, students, and home users needing a compact wireless combo for laptops or desktops. Works with most devices that support USB.
