Wireless freedom with zero compromise. The A4Tech 3330N is a high-performance 2.4GHz wireless combo that combines the GK-3 full-size keyboard with the G3-330N optical mouse. Featuring a 10–15m operating range, 12-month battery life, and 12 multimedia hotkeys, it’s the perfect plug-and-play solution for a clean, cable-free workspace. The A4Tech 3330N Wireless Desktop is engineered for consistent stability and long-term durability. Utilizing advanced Smart Wireless SoC technology, this set minimizes circuit loss and interference, providing a reliable connection that feels as responsive as a wired setup. Key Features: Consistent Wireless Stability: Advanced 2.4GHz powerful wireless connection with a distance of up to 10–15 meters. Auto-channel stabilizing ensures essentially no delays or connection conflicts. Energy Efficient Design: Enjoy up to 12 months of battery life thanks to energy-efficient engineering. The set also features Auto Power Saving with a 4-level sleep mode that activates after just 0.2s of inactivity. Full-Size Multimedia Keyboard: The GK-3 keyboard includes 12 Fn hotkeys for quick access to media controls, along with laser-inscribed keys that never fade and adjustable legs for ergonomic comfort. Precision Optical Mouse: The included G3-330N mouse offers a 1200 DPI resolution for smooth and accurate tracking. Its symmetric design makes it comfortable for both right and left-handed users of all hand sizes. 16-in-One Gestures: The mouse supports 16 different gestures to perform selectable hotkey commands, enhancing your workflow and productivity. Spill-Resistant Durability: The keyboard is designed with built-in drain holes, ensuring that accidental liquid spills won’t end your workday. Specifications at a Glance: Connection: 2.4G Hz Wireless (Nano USB Receiver) Keyboard Model: GK-3 (Full-Size) Mouse Model: G3-330N (1200 DPI Optical) Operating Range: 10 to 15 Meters Hotkeys: 12 Fn Multimedia Hotkeys Battery: 1 AA for Keyboard, 1 AA for Mouse (Up to 12 months) Compatibility: Windows 7 / 8 / 8.1 / 10 / 11
Brand Lenovo Compatible Devices Laptops Input Voltage 240 Volts Mounting Type Wall Mount Wattage 90 watts Output Voltage 20 Volts Current Rating 4.5 Amps Lenovo 90W Slim Tip Ac Adapter (Original)
The Lenovo ThinkVision T24d‑30 is a 24″ WUXGA (1920×1200) IPS monitor designed for professional and office use. It delivers crisp detail with a 16:10 aspect ratio and broad viewing angles. The panel features anti‑glare treatment and 300 cd/m² brightness to support long work sessions with reduced eye strain. This monitor includes diverse connectivity with HDMI, DisplayPort, and VGA inputs. It also offers a built‑in USB hub and integrated stereo speakers. Adjustable ergonomics with height, pivot, tilt, and swivel make it easy to position for comfort. The monitor supports VESA mount and includes low blue light and flicker‑free technologies for user comfort. Specifications: 24″ WUXGA (1920×1200) IPS display with 16:10 aspect ratio Anti‑glare panel with 300 cd/m² brightness for clear visuals HDMI, DisplayPort, and VGA inputs for versatile connectivity Built‑in USB hub and integrated stereo speakers Adjustable height, tilt, swivel, and pivot stand with VESA support
The HP 25X Gaming 25″ Monitor delivers fast, smooth visuals for gaming and everyday use.It features a 25‑inch FHD display that shows crisp images and fluid motion.Moreover, the high refresh rate keeps gameplay smooth and responsive. This gaming monitor uses a panel with wide viewing angles and vibrant color.Additionally, its fast response time helps reduce motion blur during intense action.Anti‑glare coating helps reduce reflections in bright lighting. The HP 25X Gaming Monitor includes HDMI and DisplayPort inputs for easy connection to PCs and consoles.Furthermore, tilt adjustment lets you find a comfortable viewing angle.Low blue light and flicker‑free features help reduce eye strain during long sessions. This display works well for competitive gamers, students, and home users alike.Therefore, it supports gaming, streaming, and everyday computing.Finally, it combines speed, good visuals, and comfort features for daily use. Specifications: 25″ Full HD (1920 × 1080) panel High refresh rate (typically 144 Hz) for smooth motion Fast response time (often 1 ms) for competitive play HDMI + DisplayPort ports for device connection Anti‑glare finish with low blue light & flicker‑free tech
New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13" Type-C USB-C Power 821-01658-A 2018 2019 2020 Year New A1932 A2179 A2337 DC in Power Jack Connector for Macbook Air 13″ Type-C USB-C Power 821-01658-A 2018 2019 2020 Year About this item New A1932 A2179 A2337 DC Jack Power DC-in Board for MacBook Retina 13″ DC Power Jack Board We have good after-sales services. We share the latest information on laptop spare parts in the Chinese market with all our customers. This is NOT an easy job for someone with no technical skills in Disassembling or Assembling a laptop, So only purchase this item if you know how to install it. Each DC Board is tested before shipping and working.
The Samsung 85″ Crystal UHD U8000F 4K Smart TV UA85U8000FUXTW uses a 3840 × 2160 (4K UHD) LCD panel designed for large-screen viewing. It focuses on screen size and basic 4K playback rather than advanced display features. It uses Samsung’s Crystal Processor 4K for image processing and upscaling. This processor converts lower-resolution video to near-4K output on the screen. It also supports HDR10 and HDR10+ for compatible content, which increases contrast range between bright and dark areas. The native refresh rate is 60 Hz. It includes Motion Xcelerator to reduce blur in fast motion scenes such as sports and games. The TV runs Samsung Tizen OS. This system provides access to streaming apps, web browsing, and SmartThings integration. It also supports voice assistants depending on region and setup. For connectivity, it includes HDMI ports, USB ports, Wi-Fi, Bluetooth, Ethernet LAN, and optical audio output. It also supports features like ALLM for basic gaming responsiveness. Overall, this model is a large 4K Crystal UHD TV focused on size, standard smart features, and basic HDR performance without local dimming or advanced gaming hardware. Specifications: 85-inch LCD panel with 3840 × 2160 4K UHD resolution Crystal Processor 4K with upscaling support HDR10 and HDR10+ compatibility 60 Hz native refresh rate with Motion Xcelerator Tizen OS with HDMI, USB, Wi-Fi, Bluetooth, Ethernet connectivity
The Samsung ViewFinity S7 32″ 4K Monitor is an outstanding choice for anyone seeking a clear, high-resolution display. This 4K monitor offers crisp visuals and vibrant colors, enhancing your viewing experience for work, gaming, and entertainment. With a 32-inch display, this monitor provides a large screen space to increase productivity. The 4K UHD resolution (3840 x 2160) offers four times the clarity of Full HD, so every detail is sharp and vivid. Whether you’re editing photos, creating designs, or just enjoying high-definition content, this monitor brings every image to life. The Samsung ViewFinity S7 4K Monitor is designed with a slim, minimalist look. It features ultra-thin bezels, allowing for a near borderless viewing experience. This makes it ideal for dual-monitor setups, as you can position screens side by side seamlessly. Setting up the monitor is simple, with multiple connectivity options like HDMI and DisplayPort. It also features USB-C compatibility, allowing for fast data transfer and device charging, reducing the need for multiple cables on your desk. This Samsung 4K monitor supports HDR10, providing higher contrast and accurate colors for a richer picture. Its wide viewing angles ensure that the image stays consistent, even when viewed from the side. This is perfect for shared workspaces or group settings. Additionally, the Samsung ViewFinity S7 has advanced eye-care technology. It includes features like Eye Saver Mode and Flicker-Free technology to reduce eye strain during long sessions. Upgrade your workspace or gaming setup with the Samsung ViewFinity S7 32″ 4K Monitor and enjoy stunning visuals. Specifications: Display : 32″ VA Resolution : 4K (3840×2160) HDR10 Refresh Rate : 60Hz Response Rate : 5ms
The ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor gives sharp, high-resolution visuals for work, games, and media. Its QHD display shows clear, detailed images for photos, videos, and documents. The 27-inch size offers wide viewing space for multitasking and productivity. Moreover, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor features a smooth 100 Hz refresh rate. This makes motion look fluid and clean on screen. Scrolling, movies, and games feel smoother and more pleasant. This reduces blur during fast scenes. In addition, the monitor uses a bright and vibrant panel for strong color accuracy. Colors stay true from various viewing angles. This helps media, design work, and daily tasks look natural and appealing. It’s great for creators, students, and professionals. Furthermore, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor includes eye-care technology for comfortable long use. It offers Flicker-Free display to reduce screen flicker. The blue light filter helps lower eye strain. This gives you safer viewing during work or study sessions. Also, the monitor supports HDMI and DisplayPort connections for easy setup. You can connect laptops, desktops, and consoles without hassle. The simple plug-and-play design means less time configuring. This suits home, office, and gaming setups. The design of the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor is modern and minimal. The slim frame fits well on desks of different sizes. The clean look blends into professional and home environments alike. The solid build gives you durable and long-lasting performance. Overall, the ViewSonic VA2723-2K-HD 27″ QHD 100Hz Monitor delivers a great balance of clarity, smoothness, and eye comfort. It boosts productivity, improves media quality, and supports long use. This monitor is ideal for anyone seeking quality and comfort in one screen. Specifications: Display : 27″ IPS Resolution : 2560×1440 Refresh Rate : 100Hz Response Time : 1ms
Arabic Language Ultra Thin Silicone Keyboard Cover for 2021 2020 MacBook Air 13 Inch A2179 and A2337 Apple M1 Chip (US Layout) with Touch ID Keyboard Accessories Protective Skin (Black) Color Black-Arabic Compatible Devices 2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179)2021 2020 MacBook Air 13.3-Inch with Apple M1 Chip (model: A2337), 2020 MacBook Air 13.3-Inch (model: A2179) Material Silicone Special Feature Waterproof, Dust Proof About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing. About this item [√] COMPATIBLE WITH: ONLY U.S keyboard layout–MacBook Air 13″ with Touch ID Early 2020 (model: A2179) and 2021 2020 MacBook Air 13″ with Apple M1 Chip (model: A2337). [√] MORE PROTECTION for KEYBOARD: waterproof, dust-proof and dirt-proof design can prevent liquid, dust, cigarette ash, biscuit crumbs falling onto your keyboard to affect your keyboard’s life. [√] ACCURATE KEYS: every key is specially molded, manufactured to the quality available. Flexible, this cover is easy to apply and remove for cleaning or disinfecting. [√] 0.25 MM THICKNESS: ultra thin silicone keyboard cover skin, made it easier for typing. Soft keyboard protector can weaken the sound in typing.
Are you in search of a high-quality monitor to elevate your visual experience? Look no further than the ViewSonic VA2409-MHU 24″ Monitor. With its impressive features and sleek design, it’s the perfect addition to any workspace or entertainment setup. Transitioning to its core, the ViewSonic VA2409-MHU boasts a vibrant 24-inch display that delivers crisp and clear visuals. Whether you’re gaming, watching movies, or working on creative projects, you’ll enjoy an immersive viewing experience. Its sleek and modern design adds a touch of elegance to any environment. With its slim bezels and compact footprint, it fits seamlessly into any workspace, saving valuable desk space while maximizing screen real estate. Moving on to its performance, the ViewSonic VA2409-MHU features a 75Hz refresh rate, ensuring smooth and fluid motion for an enhanced gaming and multimedia experience. Say goodbye to screen tearing and stuttering, and hello to silky-smooth visuals. Furthermore, with Full HD resolution, this monitor delivers stunning clarity and detail, bringing your content to life with vibrant colors and sharp imagery. Whether you’re editing photos, watching videos, or browsing the web, every detail pops with incredible precision. Connectivity is key, and the ViewSonic VA2409-MHU doesn’t disappoint. With a range of ports including HDMI and VGA, you can easily connect to your favorite devices such as laptops, desktops, gaming consoles, and more. Plus, its built-in speakers provide immersive audio without the need for external speakers. In summary, the ViewSonic VA2409-MHU 24″ Monitor offers the perfect blend of performance, style, and affordability. Upgrade your visual experience today with this versatile and feature-packed monitor. Specifications: Display : 24″ IPS Built-In Speaker Resolution : FHD (1920 x 1080) Refresh Rate : 75Hz Response Rate : 3ms(GTG)
The LG UltraGear OLED Curved 45GR95QE-B is a premium gaming monitor built for players who want stunning visuals and ultra-smooth performance. With a large 45-inch curved OLED display, it surrounds you in lifelike color and deep contrast. Consequently, every frame feels more immersive and realistic. Moreover, the monitor delivers an incredibly fast refresh rate and quick response time. Because of this, motion appears sharp and fluid during intense gaming moments. Therefore, competitive gamers can enjoy a smoother and more responsive experience. In addition, the LG UltraGear OLED Curved 45GR95QE-B supports HDR10 for brighter highlights and richer shadows. Thanks to OLED technology, every pixel lights up individually, providing perfect blacks and vivid colors. Furthermore, its ultra-wide aspect ratio expands your field of view for a true cinematic feel. Connectivity is simple and versatile. With HDMI 2.1 and DisplayPort options, it easily connects to PCs and gaming consoles. As a result, you can switch between platforms without hassle. Comfort is also a focus. The ergonomic stand allows height, tilt, and swivel adjustments for an ideal viewing position. Thus, the LG UltraGear OLED Curved 45GR95QE-B ensures comfort during long gaming or creative sessions. Overall, this monitor combines speed, design, and visual excellence. Whether you’re gaming, editing, or streaming, it offers next-level immersion and performance in every scene. Specifications: Display : 44.5″ WQHD (3440×1440) 21:9 OLED Resolution : 3440×1440 Response Time : 0.03ms Refresh Rate : 240Hz Curvature : 800R
128GB 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″ OLED 4K S85F Vision AI Smart TV QA65S85FAEXTW delivers a premium viewing experience built on advanced OLED technology. It produces deep blacks, rich colors, and strong contrast, so movies, sports, and games look more realistic and immersive on the 65-inch screen. OLED technology controls each pixel individually, so every detail appears with high precision. This improves dark scenes by keeping blacks deep and detailed, while bright areas stay clean and accurate. As a result, the picture remains balanced in both bright and dark environments. Samsung Vision AI improves picture and sound in real time. It analyzes each scene and adjusts brightness, color, and sharpness automatically. Therefore, the Samsung 65 OLED S85F Vision AI Smart TV QA65S85FAEXTW always delivers optimized visuals without manual settings. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity. HDR expands contrast and color depth, making visuals more lifelike and dynamic. Fast motion also appears smoother and clearer, which improves sports and action viewing. The Smart TV system gives access to streaming apps, games, and smart home features. It runs smoothly and is easy to navigate. In addition, the slim design with thin bezels gives the Samsung 65 OLED S85F Vision AI Smart TV QA65S85FAEXTW a modern and premium look. Overall, this Samsung OLED TV combines strong picture quality, AI optimization, and smart connectivity for a high-end viewing experience. Specifications: OLED display delivers deep blacks and strong contrast 65-inch 4K screen provides immersive viewing experience Vision AI optimizes picture and sound automatically HDR improves brightness, contrast, and color depth Smart TV system supports apps, streaming, and smart features
Xprinter XP-80T 80mm Thermal Receipt Printer Press to download driver: XPrinter Driver Setup V7.77 Press to download driver: XPrinter Driver Setup V7.77
The Samsung 75″ QLED 4K Q60F Smart TV QA75Q6FAAUXTW delivers a large-screen entertainment experience with advanced QLED display technology. It produces bright colors, sharp details, and impressive clarity, making movies, sports, and games more enjoyable on the expansive 75-inch screen. QLED technology uses Quantum Dot enhancement to improve color accuracy and brightness. As a result, images appear vivid and lifelike across a wide range of content. Dark scenes retain detail, while bright scenes remain balanced and clear. This helps create a consistent viewing experience throughout the day. The 4K UHD resolution provides four times the detail of Full HD content. Therefore, images look sharper and more refined. In addition, Samsung’s processing technology enhances lower-resolution content, helping it appear clearer and closer to 4K quality. HDR support improves contrast and expands the range of visible colors. This allows brighter highlights and deeper shadows, creating a more realistic picture. Fast-moving scenes also appear smoother, making sports broadcasts and action movies more enjoyable to watch. The Smart TV platform offers convenient access to popular streaming services, apps, and connected home features. It responds quickly and provides an easy-to-use interface for everyday entertainment. In addition, the slim design and narrow bezels give the Samsung QLED 75 4K Q60F Smart TV QA75Q6FAAUXTW a modern appearance that complements a variety of living spaces. Overall, this Samsung QLED TV combines large-screen immersion, vibrant color performance, and smart connectivity for a reliable home entertainment solution. Specifications: QLED technology delivers vibrant colors and enhanced brightness 75-inch 4K UHD display provides immersive viewing HDR improves contrast and image realism Smart TV platform supports streaming apps and connected features Slim design complements modern living spaces
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! 🗣️
REMAX RT-E601 1200MAH TIME II SERIES EYE-CARING LED LAMP Function— Use the power key to turn on/ off the lamp. Tap the power key to adjust the brightness of the lamp (brightest-normal-dimmest-off) four steps are easy to use. When folding the design lamp holder and arm can rotate the angle within a range of 180 degrees up-down adjustment. Press and hold “Mode” Set” Up” Donkey enter normal time mode, alarm clock and snooze mode, birthday reminder mode timer mode, and temperature mode. Time changes 12 hours/24 hours mode and adjusting the hours, minutes, year, month,t,h, and day. Temperature can change to Celsius or Fahrenheit. The red light will be on when it starts charging, and the red light will go out when it is fully charged. Material—ABS+PC Rated voltage—DC5V /0.5A lighting Mode—Direct glow Key Type—Touch key Luminous flux—250m Color rendering index—>80 Rated power—4W Battery Capacity—1200mAh Weight—346g Charging port—Micro SIZE—87*87*263mmCharging time—4-4:30hour Working time—3:30hour
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
The LG 24GS65F-B 24″ 1ms 180Hz Gaming Monitor delivers fast and responsive performance for competitive gamers and entertainment users. It features a 24-inch screen that keeps every detail sharp and immersive while fitting nicely on most desks. Moreover, the high refresh rate brings smoother gameplay so you can see every move with clarity and precision. This monitor offers a rapid 1ms response time that reduces motion blur and ghosting during fast action. Additionally, the 180Hz refresh rate makes gameplay feel fluid and dynamic, especially during intense sessions. The vivid colors and clear visuals make games, movies, and work look more engaging. Its sleek design also fits well into gaming setups and home offices. The LG 24GS65F-B includes multiple connectivity options, making it simple to hook up your PC, console, or other devices. Furthermore, ergonomic features allow you to adjust tilt for more comfortable viewing during long sessions. Therefore, it suits both casual and competitive players who want performance and clarity. Finally, it balances fast performance, vibrant visuals, and user-friendly design for everyday use. Specifications: 24-inch gaming monitor Fast refresh rate for smooth gameplay Crisp visuals with vibrant colors Multiple connectivity options Sleek and ergonomic design
The MSI Pro MP241X 24″ monitor delivers clear visuals and reliable performance for work and home use. It is built for everyday tasks, browsing, and media viewing. First, this monitor features a 24-inch Full HD display with vibrant colors and sharp details. As a result, your screen content looks crisp and easy to read. In addition, the MSI Pro MP241X 24″ offers a wide viewing angle for shared viewing. Therefore, multiple people can see clear images from different positions. The sleek and slim design makes this monitor look modern on any desk. Also, it takes up minimal space. Moreover, this monitor supports anti-flicker and reduced blue light technology. So, your eyes feel more comfortable during long sessions. Because it uses HDMI and VGA inputs, it connects easily to many devices. Thus, setup stays simple with laptops and desktops. The MSI Pro MP241X 24″ provides consistent performance for work apps and video watching. This makes everyday computing smooth and enjoyable. Furthermore, the stand offers tilt adjustment for better viewing angles. So, you can find the most comfortable position for your eyes. Compared to lower-resolution screens, this Full HD panel shows clearer details. Therefore, text and graphics look sharper and more accurate. It works well for office tasks, video streaming, and school work. Thus, it fits many daily needs. Installation is fast and beginner-friendly with plug-and-play support. As a result, you can start using it right away. The MSI Pro MP241X 24″ also supports stable refresh performance for smoother visuals. This improves motion during videos and general use. Also, the slim bezels help reduce distraction and provide a clean look. Therefore, your workspace stays neat and focused. In conclusion, this monitor offers clear visuals, comfort features, and easy connectivity. Overall, it is a strong choice for work, school, or entertainment. If you want a reliable and sharp 24″ screen, this model is worth choosing. Specifications: Display: 24-inch VA panel, Full HD (1920×1080), 16:9 aspect ratio. Performance: 75Hz refresh rate, 4ms (GTG) response time, 1000:1/3000:1 contrast Connectivity: HDMI™ 1.4b & D-Sub (VGA) ports for versatile device connection
