New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13'' 15''A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year New A1989 A1990 Keyboard US Standard Replacement for MacBook Pro 13” 15”A1990 A1989 Keyboard 2018/2019 Year We have Perfect after-sales services We share the latest information on laptop spare parts For all our customers. This is NOT an easy job for someone who has no technical skills with Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each Keyboard is tested before shipping and working.
AOC 24G2SPe IPS 165Hz The AOC 24G2SPe monitor elevates your gaming experience, offering immersive gameplay and superior visual performance. Equipped with advanced technology, it’s designed to meet the needs of gamers. Featuring a high refresh rate and quick response time, the 24G2SPe ensures smooth and tear-free gaming sessions, allowing you to stay ahead in the competition. The Full HD display with vivid colors and sharp details enhances your gaming visuals, making it the ideal choice for gamers seeking a competitive edge. The sleek and modern design of the AOC 24G2SPe blends seamlessly with your gaming setup, reflecting your commitment to excellence. Gamers and esports enthusiasts rely on this monitor to elevate their gaming performance, making it an essential component of their gaming rig. In summary, the monitor elevates your gaming with immersive experiences and superior visual performance. Don’t miss out on this gaming monitor that can enhance your gaming performance. Choose AOC 24G2SPe! IPS AdaptiveSync 165Hz 1ms 1920 × 1080 (FHD) HDMI
The Samsung Odyssey Neo G9 57″ 240Hz Curved Gaming Monitor redefines the gaming experience. It features a massive 57-inch curved display with ultra-wide dual 4K resolution. Every detail appears sharp, bright, and incredibly lifelike. The 1000R curve wraps around your vision perfectly. It makes gameplay more immersive and natural for your eyes. You feel fully surrounded by the action every time you play. With a 240Hz refresh rate, motion stays ultra-smooth and responsive. Fast-paced scenes and intense battles run without lag or tearing. Gamers can react instantly and stay one step ahead. The Quantum Mini LED technology delivers outstanding contrast and brightness. Blacks are deeper, highlights are brighter, and colors stay true. HDR support ensures every game looks cinematic and vibrant. Connectivity is modern and versatile. It includes DisplayPort 2.1, HDMI 2.1, and USB ports for easy setup. You can connect multiple devices and switch effortlessly. The sleek design stands out in any setup. The adjustable stand allows height, tilt, and swivel control. RGB CoreSync lighting adds style that matches your gameplay. Multitasking is simple with Picture-by-Picture and Picture-in-Picture modes. You can game, stream, or work on one massive screen. It’s perfect for gamers and professionals alike. The Samsung Odyssey Neo G9 57″ 240Hz Curved Gaming Monitor combines power, style, and precision. It’s the ultimate choice for next-generation gaming and performance. Specifications: Display : 57″ VA Curvature : 1000R Resolution : Dual UHD (7,680 x 2,160) Refresh Rate : 240Hz Response Rate : 1ms GTG
AOC 27G4 27-inch 180Hz gaming monitor delivers fast and responsive performance for competitive gameplay. It focuses on smooth motion, low latency, and reliable visual clarity for daily gaming. Additionally, it features a 27-inch IPS panel with Full HD resolution (1920 × 1080). This panel provides consistent colors and wide viewing angles, so it improves both gaming and general use. Moreover, the monitor supports a 180Hz refresh rate with 1ms GtG response time. As a result, it delivers smooth motion and reduces blur during fast-paced scenes. The display also includes 0.5ms MPRT technology. Therefore, it minimizes ghosting and improves motion clarity in competitive games. In addition, it supports Adaptive Sync and G-SYNC compatibility. This reduces screen tearing and stuttering, so gameplay remains stable and responsive. Furthermore, it includes HDR10 support and Low Input Lag mode. These features enhance image quality and improve reaction speed during gameplay. The design features a three-sided frameless layout with HDMI and DisplayPort connectivity. It also supports VESA mounting for flexible setup options. AOC 27G4 27-inch 180Hz gaming monitor provides smooth performance, fast response, and essential features for competitive and everyday gaming. Specifications: 27-inch IPS panel with Full HD 1920 × 1080 resolution 180Hz refresh rate for ultra-smooth gameplay 1ms GtG response time with 0.5ms MPRT support Adaptive Sync and G-SYNC compatible technology HDR10 support with low input lag mode
AOC 27G50Z 27-inch 260Hz gaming monitor delivers ultra-fast performance for competitive esports gaming. It focuses on extreme refresh rate, ultra-low response time, and precise motion clarity for high-level gameplay. Additionally, it features a 27-inch Fast IPS panel with Full HD resolution (1920 × 1080). This panel provides sharp visuals and accurate colors, so it ensures consistent performance during intense gaming sessions. Moreover, it supports up to a 260Hz refresh rate (overclocked, 240Hz native). As a result, it delivers extremely smooth motion and maximizes high FPS gameplay performance. The monitor includes 1ms GtG and 0.3ms MPRT response time. Therefore, it reduces motion blur and ghosting for clearer fast-action visuals. In addition, it supports Adaptive Sync technology and low input lag mode. This reduces screen tearing and ensures precise, responsive gameplay. Furthermore, it supports HDR10 and gaming features like Shadow Control and Game Mode presets. These features improve contrast, visibility, and in-game performance tuning. The monitor also includes HDMI 2.0 and DisplayPort 1.4 connectivity with a frameless esports design. It supports modern gaming setups with clean and simple installation. AOC 27G50Z 27-inch 260Hz gaming monitor provides top-tier speed, ultra-smooth visuals, and competitive features for serious gamers. Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 260Hz refresh rate (240Hz native, overclocked) 0.3ms MPRT and 1ms GtG response time Adaptive Sync with low input lag mode HDR10 with gaming presets and image controls
The Samsung Odyssey 3D G90XF 27″ 4K Gaming Monitor delivers stunning visuals and immersive gaming experiences. It features a crisp 27‑inch 4K (3840×2160) display for ultra‑sharp image clarity. Moreover, the Samsung Odyssey 3D G90XF 27″ 4K Gaming Monitor supports high refresh rates for smooth gameplay. It includes advanced 3D features to bring virtual worlds to life. Also, the fast response time reduces motion blur in action scenes. In addition, it offers great color accuracy with HDR support for vibrant visuals. Plus, the monitor blends well with modern gaming setups and sleek decor. Furthermore, its ergonomic stand allows tilt, swivel, and height adjustments for comfort. Therefore, you get personalized viewing angles for long gaming sessions. It also supports NVIDIA G-SYNC or AMD FreeSync to prevent screen tearing. Meanwhile, built‑in speakers deliver basic sound without extra gear. Because of its thin bezels, the monitor creates a seamless multi‑monitor setup. Thus, gamers enjoy immersive edge‑to‑edge visuals without distraction. The Samsung Odyssey 3D G90XF 27″ 4K Gaming Monitor includes multiple HDMI and DisplayPort ports. Also, a USB hub port lets players connect peripherals easily. Moreover, its flicker‑free and low‑blue‑light modes ease eye strain. Then, LED backlighting enhances color uniformity and contrast levels. Also, adaptive sync keeps games smooth even under heavy graphical loads. Furthermore, factory calibration ensures accurate color right out of the box. In addition, the design supports VESA mounting for flexible placement. Therefore it fits on desks or wall mounts neatly. With durable build quality, the monitor stands up to intense everyday use. It stays cool under pressure thanks to efficient thermal design. Finally, the Samsung Odyssey 3D G90XF 27″ 4K Gaming Monitor balances performance, design, and comfort. Overall, it provides next‑level gaming visuals for serious gamers. Specifications: Display : 27″ IPS Resolution : 4K (3,840 x 2,160) Refresh Rate : 165Hz Response Rate : 1ms
Searching for a monitor that enhances your productivity and comfort? Look no further than the ViewSonic 24” 60Hz Monitor VG2448. This monitor is your gateway to a superior visual experience. First and foremost, let’s discuss clarity. With its 24-inch screen size, the VG2448 delivers crisp and clear images, ensuring every detail is sharp and vibrant. Say goodbye to eye strain and hello to comfortable viewing. Transitioning to performance, this monitor boasts a refresh rate of 60Hz, providing smooth and fluid visuals for an enhanced viewing experience. Whether you’re working on spreadsheets or watching videos, motion blur will be a thing of the past. Moreover, its ergonomic design offers customizable tilt, swivel, and height adjustments, allowing you to find the perfect viewing angle for maximum comfort. Say goodbye to neck and back strain with this user-friendly monitor. In addition, the VG2448 features a variety of connectivity options, including HDMI, DisplayPort, and VGA, ensuring compatibility with a wide range of devices. Seamlessly connect your PC, laptop, or gaming console with ease. Furthermore, this monitor is equipped with ViewSonic’s exclusive Eye Care technology, which helps reduce eye fatigue during prolonged use. Protect your vision while enjoying extended viewing sessions. In conclusion, the ViewSonic 24” 60Hz Monitor VG2448 is a versatile and reliable choice for both work and entertainment. With its superior clarity, performance, and ergonomic design, it’s sure to enhance your productivity and comfort. Upgrade your viewing experience today and see the difference for yourself. Specifications: Display : 24″ IPS Resolution : FHD (1920×1080) Refresh Rate : 60Hz Response Rate : 5ms GTG
Are you ready to take your gaming to the next level? Look no further than the Samsung Odyssey G5 27″ Curved Gaming Monitor. This cutting-edge monitor is designed to deliver an immersive gaming experience like no other. Featuring a stunning 27-inch curved display, the Samsung Odyssey G5 brings your games to life with vibrant colors and crystal-clear visuals. Whether you’re exploring virtual worlds or engaging in epic battles, every detail will be rendered with precision and clarity. With a lightning-fast 165Hz refresh rate, this monitor ensures buttery-smooth gameplay with no lag or stuttering. Say goodbye to screen tearing and motion blur, and hello to an ultra-responsive gaming experience. Equipped with AMD FreeSync technology, the Samsung Odyssey G5 syncs the monitor’s refresh rate with your graphics card, eliminating screen tearing and providing silky-smooth gameplay. Transitioning to its design, the Odyssey G5 features a sleek and stylish aesthetic that will complement any gaming setup. Its slim bezels and curved screen create an immersive viewing experience that pulls you into the action. Connectivity is key for gamers, and the Samsung Odyssey G5 doesn’t disappoint. With HDMI and DisplayPort inputs, you can easily connect your gaming PC, console, or other devices for maximum versatility. Furthermore, the Odyssey G5 comes with a range of gaming-centric features, including customizable gaming modes, black equalizer technology, and low input lag. Whether you’re playing fast-paced shooters or strategy games, you can tailor your gaming experience to suit your preferences. In summary, the Samsung Odyssey G5 27″ Curved Gaming Monitor is the ultimate choice for gamers who demand performance, immersion, and style. Upgrade your gaming setup today and experience gaming like never before. Specifications: Display : 27″ VA Curvature : 1000R Resolution : 2,560 x 1,440 Refresh Rate : 165Hz Response Rate : 1ms
Compact, affordable all-in-one inkjet printer for home and small office use—print, scan, and copy in color with easy wireless setup, mobile printing, and HP’s efficient ink system.
About this item 📱 Versatile Connectivity: Connect effortlessly with Bluetooth 4.2 to your smartphones, iPads, and computers. Also supports U disk, TF card (up to 32G), AUX input, and FM radio for versatile playback options. 📲 🔊 Powerful Sound with Heavy Bass: Enjoy rich, high-volume stereo sound with a powerful 20W output and a built-in heavy subwoofer, delivering an immersive audio experience for your home. 🎶 📻 Built-in FM Radio: Stay tuned to your favorite stations with the built-in FM radio feature, ensuring you never miss out on the latest news, music, and more. 📡 📞 Hands-Free Calling: Equipped with a clear call feature, this speaker allows you to answer phone calls directly through the speaker without lifting your phone. Perfect for multitasking! 🗣️ 📞 Hands-Free Calling: Equipped with a clear call feature, this speaker allows you to answer phone calls directly through the speaker without lifting your phone. Perfect for multitasking! 🗣️
RK61 RGB Mechanical Keyboard – Compact 60% keyboard with Blue switches, tri-mode (Bluetooth/2.4GHz/Wired), and vibrant RGB.Perfect for minimal desk setups and wireless performance with a unique W-W-B color design. Model: Royal Kludge RK61 Layout: 60% compact (61 keys, no numpad or F-row) Switch Type: Blue Mechanical Switches (clicky + tactile feedback) Backlight: RGB with multiple lighting modes & effects Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Connection Modes (3C): Bluetooth 5.0 – Pair with up to 3 devices Wired USB-C – For gaming and charging 2.4GHz Wireless (on 3-mode models) Battery: 1450mAh rechargeable battery Keycaps: ABS double-shot (W-W-B colorway: White-White-Black) Hot-Swappable: No (unless stated on specific variant) Compatibility: Windows, macOS, Android, iOS Anti-Ghosting: Full N-Key rollover Software Support: RK software for key remapping and RGB control (Windows only) Build Material: ABS plastic case, plastic plate Cable: Detachable USB-C cable included Dimensions: Approx. 290 x 100 x 40 mm Weight: ~500g
OEM-quality left and right loudspeaker replacement pair for MacBook Pro 14″ (Model A2442, 2021, M1 Pro/Max)—restores Apple’s high-fidelity six-speaker audio system with precise sound staging, rich bass, and clear highs. Compatible With: MacBook Pro 14-inch (2021, Model A2442) with Apple M1 Pro or M1 Max chip (Model Identifier: MacBookPro18,3 or MacBookPro18,4). Includes: Complete left and right speaker assemblies, each containing: Dual-driver units (force-cancelling woofers + tweeters) Pre-attached flex cables with OEM connectors Mounting brackets and acoustic seals Dual-driver units (force-cancelling woofers + tweeters) Pre-attached flex cables with OEM connectors Mounting brackets and acoustic seals Audio Performance: Matches Apple’s advanced six-speaker sound system with: Wide stereo separation High dynamic range Spatial audio and Dolby Atmos support (when paired with original logic board and firmware) Wide stereo separation High dynamic range Spatial audio and Dolby Atmos support (when paired with original logic board and firmware) OEM Build Quality: Precision-engineered housings with exact acoustic chambers, grille alignment, and cable routing—ensures zero rattling and full macOS audio calibration compatibility. Common Use Cases: Replaces speakers damaged by liquid ingress, physical impact, or internal failure (e.g., no sound, distorted audio, or imbalance between channels). Installation Note: Requires full bottom case and logic board disassembly. Speakers are secured with screws and acoustic adhesive. Highly recommended for certified Apple technicians or experienced professionals only due to complex internal layout and sensitivity of audio components. Important: This speaker pair is exclusive to A2442 (14″, 2021, M1 Pro/Max). Not compatible with 16″ MacBook Pro (A2485), 13″ models, or Intel-based MacBooks. This speaker pair is exclusive to A2442 (14″, 2021, M1 Pro/Max). Not compatible with 16″ MacBook Pro (A2485), 13″ models, or Intel-based MacBooks. Model Verification: Confirm your device via > About This Mac > Model Identifier (must be MacBookPro18,3 or MacBookPro18,4).
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
Product Name WiWU Dual USB Quick Wall Charger 20W Fast Charging For Smart PhoneColorWhiteFeature& Photos
Samsung Monitor 27″ FHD monitor with IPS panel Screen Size (Class)27 Active Display Size (HxV) (mm)596.736 x 335.664 Aspect Ratio16:9 Panel TypeIPS Brightness (Typical)400 cd/㎡ Brightness (Min)320 cd/㎡ Contrast Ratio Static1,000:1(Typ.) Dynamic Contrast RatioMega ∞ DCR HDR(High Dynamic Range)HDR10 Resolution1,920 x 1,080 Response Time1ms (GTG) Viewing Angle (H/V)178°/178° Color SupportedMax 16.7M sRGB Coverage99% Refresh RateMax 240Hz General Feature Eco Saving PlusYes Eco Light SensorYes Eye Saver ModeYes Flicker FreeYes Windows CertificationWindows 10 FreeSyncFreeSync Premium G-SyncG-Sync Compatible Off Timer PlusYes Black EqualizerYes Low Input Lag ModeYes Virtual AIM PointYes Refresh Rate OptimizorYes Specifications: Samsung Monitor 27″ FHD monitor with IPS panel Screen Size (Class)27 Flat / CurvedFlat Active Display Size (HxV) (mm)596.736 x 335.664 Aspect Ratio16:9 Panel TypeIPS Brightness (Typical)400 cd/㎡ 3-Year Warranty
COMPACT AND WIRELESS Enjoy the freedom of wireless with this versatile combo. The compact keyboard is equipped with a number pad ideal for data entry, calculations and navigation, so you can get more work done in less space. The ambidextrous mouse delivers smooth tracking and scrolling, for easy navigation -at home or at work. COMPACT AND WIRELESS Enjoy the freedom of wireless with this versatile combo. The compact keyboard is equipped with a number pad ideal for data entry, calculations and navigation, so you can get more work done in less space. The ambidextrous mouse delivers smooth tracking and scrolling, for easy navigation -at home or at work. Height: 112 mm Width: 381 mm Depth: 17.78 mm Weight: 320 g Height: 107 mm Width: 60 mm Depth: 40 mm Weight: 112 g 10-Key Number pad Music Controls Up to 5 million keystrokes (excludes number lock key) Key type: Deep-profile Spill-resistant 2Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse the keyboard in liquid. 2 AAA batteries (Alkaline Batteries) Sensor Technology: Smooth Optical Tracking Number of Buttons: 3 (Left/Right-click, Middle click) Scrolling: line-by-line Scroll Wheel: Yes, optical 2 AA batteries (Alkaline batteries) Windows® 10,11 or later ChromeOS An available USB ports
Samsung Lebanon 55″ UHD The Samsung Lebanon 55″ UHD See more on a 55-inch, 1000R curved screen. Quantum Mini-LED achieves next-generation depth to deliver exceptional picture . 55″” large screen & 1000R curvature Be immersed in lifelike images. The 55-inch screen delivers a picture that overwhelms your senses. creating an experience superior to anything seen before. This is upgraded by 1000R curvature to wrap around your field of vision for maximum immersion. Cockpit Mode & Eclipse Lighting Feel like you’re in a cockpit. Rotate the screen to Cockpit Mode with HAS, tilt and pivot for an optimal screen environment. This perfect positioning creates a new sense of world-blending , further by Eclipse Lighting. Quantum Matrix Technology An unrivaled visual experience. Revolutionary Quantum Matrix Technology with Quantum Mini LEDs . creates controlled brightness and perfect contrast for refined definition. The advanced 14-bit back light unit allows detailed HDR control which creates unmatched picture quality. Neural Quantum Processor Ultra Enjoy powerful cinematic By combining 20 multi-layer neural networks. the AI-Powered images to restore every detail, pixel by pixel. Automatic and upscale the resolution of whatever you’re watching. HDR 10+ gaming See every detail in all its glory. From shadows to sun-scorched scenes, the t ratio enables enhanced . color expression and depth. Get a competitive edge with HDR 10+, which automatically adapts. games in real-time to show you every detail that could lead to victory. Matte display Focus only on what matters. The distraction-free matte screen absorbs, not reflects. artificial and natural light, keeping you laser-focused during the toughest battles and hardest levels. Sound Dome Technology Four corner speakers and two central woofers result in a 60W 2.2.2 channel with the lowest 45Hz. notes of any gaming screen or gaming soundbar. AI Sound Booster and Dolby Atmos take it to the next level. you in a that places you inside the gaming world. Specifications: Specifications Screen Size (Class)55 Flat / CurvedCurved Active Display Size (HxV) (mm)1209.6(H) x 680.4(V) Screen Curvature1000R Aspect Ratio16:9 Panel TypeVA Brightness (Typical)600 cd/㎡ Brightness (Min)420 cd/㎡ Contrast Ratio Static1,000,000:1 (Static) Contrast Ratio (Dynamic)Mega DCR HDR(High Dynamic Range)Quantum HDR 32x HDR10+Yes Mini LED Local DimmingYes (1,056 zones) HDR10+ GamingYes Resolution3,840 x 2,160 Response Time1ms(GTG) 3 year warranty Manufacturer Link
The ViewSonic VX2480-2K-SHD 24″ 75Hz Monitor elevates your visual experience with its stunning 24-inch display. Whether you’re working, gaming, or watching movies, this monitor delivers crisp and clear images. With a 2K resolution, the ViewSonic VX2480-2K-SHD ensures every detail is visible and vibrant. Enjoy sharp, lifelike visuals that make your content come alive, from photos to videos and everything in between. The 75Hz refresh rate provides smooth and fluid motion, making it perfect for gaming and fast-paced videos. Say goodbye to screen tearing and lag, and enjoy a seamless viewing experience with the ViewSonic VX2480-2K-SHD. Designed for versatility, this monitor offers multiple connectivity options, including HDMI and DisplayPort. Easily connect your devices and switch between them without hassle, making your workspace more efficient. The ViewSonic VX2480-2K-SHD 24″ Monitor features an ultra-slim bezel design, maximizing your screen space and creating a sleek, modern look. Its ergonomic stand allows you to adjust the height and tilt for the most comfortable viewing position. Eye-care technology in the ViewSonic VX2480-2K-SHD reduces eye strain during extended use. With features like Flicker-Free and Blue Light Filter, you can work or play for longer without discomfort. In conclusion, the ViewSonic VX2480-2K-SHD 24″ 75Hz Monitor offers a perfect blend of stunning visuals, smooth performance, and ergonomic design. Upgrade to the ViewSonic VX2480-2K-SHD today and transform your viewing experience. Specifications: Display : 24″ IPS Resolution : QHD 2560 x 1440 Refresh Rate : 75Hz Response Rate : 3.89ms
The Samsung 24 inch 120Hz Essential Monitor S3 S32GF delivers smooth visuals with a Full HD display and fast refresh rate. Additionally, the 120Hz panel improves motion clarity, which makes it suitable for daily tasks and light gaming. The slim design also fits easily into modern workspaces. Moreover, the monitor uses a quality panel that provides consistent colors and clear details from different viewing angles. Therefore, it supports both productivity and entertainment use. Eye Saver Mode and flicker free technology also help reduce eye strain during long sessions. Furthermore, connectivity is simple and practical with HDMI and VGA inputs for flexible device support. In addition, the monitor is easy to set up and use for home or office environments. Overall, the Samsung 24 inch 120Hz Essential Monitor S3 S32GF is a reliable everyday display. Specifications: 24 inch Full HD display delivers clear and sharp visuals for daily use 120Hz refresh rate provides smoother motion for videos and light gaming Eye Saver Mode and flicker free technology help reduce eye strain Slim and modern design fits easily into home or office setups HDMI and VGA connectivity allow easy connection to multiple devices
