List of products by brand UGREEN

The UGREEN Quadruple-Port Wall Plate (NW144, SKU: 80443) is a durable ABS+PC faceplate with 4 keystone openings for RJ45, RJ11, or other standard modules. It features integrated dust covers, quick access design, and labeling areas for tidy, professional installations in homes or offices. Note:...

The UGREEN (HD103 - 10172)  HDMI Cable Right Angle 90° delivers stable 4K@30Hz video and audio transmission with its 30AWG, OD7.3mm build, designed for tight spaces and convenient connections.

The UGREEN 25051 is a compact aluminum USB adapter that provides high-speed 2.5Gbps Ethernet connectivity, offering a stable and reliable wired network connection for laptops, PCs, and other compatible devices.

The UGREEN Nexode 200W GaN Desktop Charger (CD271 / 40914) is a powerful 6-port charging hub with 4× USB-C and 2× USB-A outputs. Delivering up to 200W total power, it can fast-charge two laptops, smartphones, tablets, and accessories at the same time. Compact, efficient, and safe, it’s the...

Keep your rack clean and organized with the UGREEN NW128 (70424) 24-Port Cable Management Panel.   This 1U, 19″ rack-mount panel features 24 guided slots to neatly route patch cables, reduce clutter, and protect connections.   Durable plastic construction, smooth edges, and a sleek black finish...

THE UGREEN (HD101 - 10115)  HDMI Round Cable 0.75m supports 4K@60Hz high-speed video and audio transmission with HDMI 2.0, featuring a durable yellow and black design for reliable connectivity.

The UGREEN 20265 is a compact 5-in-1 USB 3.0 hub that integrates a Gigabit Ethernet port and three high-speed USB 3.0 ports, delivering up to 1000 Mbps network performance and 5 Gbps USB data transfer. It offers plug-and-play compatibility with modern operating systems—such as Windows...

The UGREEN Nexode 300W GaN Fast Charger is a compact desktop charging station with 4 USB-C and 1 USB-A port, delivering up to 300W total output. It supports ultra-fast charging for laptops, tablets, and smartphones with intelligent power distribution. GaN technology ensures high efficiency,...

The UGREEN 40408 High-End HDMI Cable with durable nylon braid, supporting 4K@60Hz resolution and HDMI 2.0 for stable, high-quality audio and video transmission.

The UGREEN 60554 is a 5-in-1 USB 3.0 hub that adds a reliable Gigabit Ethernet port, three high-speed USB 3.0 ports (up to 5 Gbps), and a USB-C power input for powering peripherals. Compact and lightweight, it delivers stable wired internet and expanded connectivity for laptops, MacBooks, and...

The UGREEN 60113 DigiNest Cube Power Strip is a compact cube-shaped multi-charger featuring 3 AC outlets, plus 2 USB-C and 2 USB-A ports. The USB-C ports deliver up to 65 W PD for fast laptop charging, while the USB-A ports handle smaller devices. It comes with a 1.8 m cable and built-in...

The UGREEN 80401 HDMI A M/M Cable with braided design, supporting 8K@60Hz and 4K@120Hz for ultra-high-definition video and reliable signal transmission.

The UGREEN 30287 USB-C to 10/100Mbps Ethernet Adapter offers a reliable wired network connection for USB-C enabled devices, such as MacBook, Chromebook Pixel, and Lenovo Yoga 900. Its compact design and plug-and-play functionality make it an ideal solution for users needing stable internet access...

The UGREEN DigiNest Cube (model CD268 / 90906) is a compact 7-in-1 charging station in a cube form factor. It offers 3 AC outlets plus 2 USB-C and 2 USB-A ports delivering up to 65 W total (GaN-based fast charging). It has built-in protection (overload, over-current, over-temperature) and a fixed...

The UGREEN 10106 HDMI Cable supporting 4K@60Hz with HDMI 2.0, delivering high-definition video and stable signal transmission for home and professional use. For lengths 20m, 25m, and 30m, the cable includes an integrated IC chip to boost the signal and ensure stable 4K transmission over...

The UGREEN 50307 USB-C to Gigabit Ethernet Adapter is a compact and efficient solution for devices lacking an Ethernet port.

The UGREEN DigiNest Pro (CD270-60167) is a compact, high-performance EU power strip combining 2 AC outlets with a powerful USB charging hub. It delivers up to 100 W of total USB-C/A power (using GaN technology for efficiency and thermal control), supports multiple fast-charge protocols (PD, PPS,...

The UGREEN 30999 4K HDMI Male-to-Male Braided Cable supports 4K@60Hz with HDMI 2.0, providing reliable high-definition video and audio transmission with durable braided protection.

The UGREEN 50737 USB-C to Ethernet Adapter is a compact and efficient solution for adding a Gigabit RJ45 Ethernet port to USB-C enabled devices. With support for speeds up to 1000Mbps, it ensures a stable and fast wired internet connection, ideal for activities like streaming, gaming, and data...

The UGREEN 60168 is a 7-in-1 GaN power strip featuring 2 UK AC outlets, 3 USB-C ports, and 1 USB-A port with up to 100 W fast charging. Compact and travel-friendly, it offers smart power distribution, multiple safety protections, and reliable performance for powering laptops, phones, and other...

The UGREEN 25297 HDMI 4K Cable delivers high-quality 4K video and audio transmission, ensuring clear, stable, and reliable performance for your devices.

The UGREEN 25052 USB‑C to Ethernet Adapter 2.5G provides ultra-fast wired connectivity with up to 2.5 Gbps speeds, featuring a sleek aluminum design and compatibility with Thunderbolt 4/3 devices, including MacBook, Dell XPS, iPad Pro, and iPhone 15 Pro series.

Compact and powerful, the UGREEN PB311 10000mAh Power Bank delivers up to 20W fast charging via USB-C PD and USB-A ports. Featuring two-way quick charge, LED power indicators, and multi-protect safety, it’s perfect for keeping your smartphones, tablets, and accessories powered on the go.

The UGREEN 25908 HDMI 8K Cable supports ultra-high-definition 8K video and high-speed audio, providing smooth, crystal-clear performance for next-generation devices.

The UGREEN 70446 USB-C to RJ45 2.5 Gigabit Ethernet Adapter delivers ultra-fast 2.5 Gbps wired connectivity, featuring the RTL8156 chipset, aluminum housing for heat dissipation, plug-and-play support, and compact durability.

The UGREEN PB502 (25185) 10,000mAh 30W Power Bank is a compact, fast-charging portable battery with dual ports (USB-C PD & USB-A). It supports two-way 30W PD charging, pass-through function, low-current mode for wearables, and features a clear LED percentage display—all in a sleek,...

The UGREEN 11167 Mini HDMI to HDMI Cable 1.5m delivers high-definition video and audio transfer from mini HDMI devices to standard HDMI displays with stable, high-quality performance.

The UGREEN 90339 AC650 USB WiFi Adapter delivers dual-band wireless connectivity with speeds up to 433 Mbps on 5 GHz and 200 Mbps on 2.4 GHz, featuring a 6 dBi high-gain antenna, plug-and-play setup, and support for both Windows and Linux PCs.

The UGREEN 25208 is a compact 10,000 mAh magnetic power bank (model PB561) that delivers fast and flexible charging. It supports up to 20 W wired charging via USB-C (input/output) and up to 15 W wireless Qi charging. A built-in 10 N magnet lets it snap securely to MagSafe-compatible...

The UGREEN 15514 Mini HDMI to HDMI 8K Cable provides ultra-high-definition 8K video and audio transfer from mini HDMI devices to HDMI displays with superior clarity and stable performance.

The UGREEN 20204 AC650 Dual-Band USB WiFi Adapter delivers fast and stable wireless connectivity with support for both 2.4 GHz and 5 GHz bands. Offering speeds up to 433 Mbps on 5 GHz, it’s ideal for streaming, gaming, and video calls. Compact and easy to set up, it supports Windows, macOS,...

UGREEN 10000mAh Mini Magnetic Wireless 20W Power Bank (PB206 - 15086)Stay powered on the go with this sleek and compact magnetic wireless power bank. Featuring a 10000mAh capacity, it supports 20W fast charging and attaches securely to your device for hassle-free charging. The built-in holder...

The UGREEN 30102 Micro HDMI to HDMI Cable enables high-quality video and audio transmission from micro HDMI devices to HDMI displays, supporting smooth 4K@60Hz playback.

The UGREEN 90340 is an AX1800 dual-band Wi-Fi 6 USB adapter that delivers speeds up to 1201 Mbps on 5 GHz and 576 Mbps on 2.4 GHz, ensuring fast and stable connections. Equipped with Wi-Fi 6 technologies such as OFDMA, Beamforming, and MIMO, it provides wider coverage, low latency, and reliable...

The UGREEN PB720 (SKU 25188) is a slim yet powerful 20,000 mAh power bank featuring up to 100 W USB-C PD output, dual USB-C ports plus a USB-A port. It supports fast charging of laptops, tablets and phones, can recharge itself quickly (up to ~65 W), and includes a numeric display to show...

The UGREEN 15516 Micro HDMI to HDMI 8K Cable delivers ultra-high-definition video and audio, supporting 8K@60Hz and 4K@120Hz for crystal-clear visuals and seamless connectivity.

The UGREEN 70450 USB-C to HDMI Adapter is a compact and reliable solution for connecting USB-C or Thunderbolt 3 devices to HDMI displays, delivering up to 4K@60Hz resolution with HDCP 2.2 for smooth streaming, gaming, and presentations. It is widely compatible with MacBook Pro/Air, iPad Pro,...

The UGREEN 90597A is a high-capacity 25 000 mAh power bank with up to 145 W USB-C Power Delivery, allowing you to fast-charge laptops, tablets, phones and other devices. It supports two-way rapid charging, has multiple ports for simultaneous device charging, and an LED display to indicate...

The UGREEN 10141 HDMI Male to Female Extension Cable extends your HDMI connection easily, supporting high-definition video and audio for seamless 4K@60Hz performance.

The UGREEN 40273 is a USB-C to HDMI adapter designed to connect modern devices such as the 2015 MacBook, Chromebook Pixel, and ASUS Zen AiO PC to HDTVs, monitors, or projectors. Supporting resolutions up to 4K × 2K @ 30Hz, it ensures sharp visuals for presentations, movies, or extended desktop...

The UGREEN LP108 30394 Adhesive Wall Mount Phone Charging Holder provides a convenient spot to hold your phone while charging. Easy to install with strong adhesive, it keeps your device secure, organized, and within reach.

The UGREEN 15518 HDMI 8K Male to Female Extension Cable 0.15M extends your HDMI connection while supporting ultra-high-definition 8K video and superior audio quality.

The UGREEN 70444 USB C to HDMI Adapter Cable delivers 4K at 60Hz ultra high definition output with HDMI 2.0 support and smooth transmission It features a durable aluminum casing with nylon braided cable and reinforced shielding for reliability It offers broad compatibility with laptops tablets...

The UGREEN 90849 — also known as the 360° Rotating Tablet (or Laptop) Stand Holder — is a versatile and ergonomic accessory designed to elevate your device viewing experience. Here's a refined overview of its standout features:

The UGREEN LP143 80701 Metal Desktop Stand for Headset offers sturdy and stable support for headphones. Its sleek metal design keeps your headset organized and easily accessible, making it ideal for desks or gaming setups.

The UGREEN 40447 HDMI Extension Cable allows you to easily extend your existing HDMI connection without signal loss. It supports high-definition video and clear audio, ensuring smooth playback for TVs, monitors, projectors, and other HDMI-enabled devices. Durable and reliable, it provides...

The UGREEN 50338 is a USB-C to HDMI 2.1 adapter that supports up to 8K@60Hz and 4K@240Hz, delivering ultra-smooth, high-resolution visuals. It provides 48 Gbps bandwidth with HDR, ALLM, HDCP 2.3, DSC 1.2a, and Dolby 7.1 for vivid colors, low latency, and immersive sound. Built with a...

we introduce the Ugreen 50274 Hard Drive Case, a pinnacle of protection designed for 2.5" hard drives and 10000mAh battery packs. This shockproof external case serves as the perfect armor for your gadgets, allowing you to travel worry-free and organized.

The UGREEN 40705 iPhone Charging Cable Tail Protection Sleeve, designed to extend the life of your charging cables. It provides durable protection against bending and fraying, ensuring safe and reliable charging for everyday use.

The UGREEN 30116 HDMI to DVI Cable - HD106 provides a reliable connection between HDMI and DVI devices, supporting high-quality digital video transmission. Perfect for connecting computers, monitors, projectors, or TVs, it ensures clear, stable display performance for work or entertainment.

The UGREEN 40372 USB-C to HDMI Adapter with PD – Connect your USB-C device to HDMI displays in 4K@60Hz. Supports mirror and extend modes, while the extra USB-C port enables power delivery charging during use. Compact 15cm white cable. Note: Works only with devices supporting video output via USB-C.

The UGREEN 20476 is a slim, shockproof laptop sleeve for 14–15 inch devices. With water-resistant fabric, foam padding, and a soft velvet lining, it protects against drops, scratches, and spills. Lightweight and stylish, it’s perfect for school, work, or travel.

The UGREEN 10244 DP Male to Male Cable (Black) provides high-speed DisplayPort connectivity for seamless audio and video transmission. It supports up to 4K resolution at 60Hz, ensuring sharp visuals and smooth performance for monitors, computers, gaming setups, and other compatible devices....

The UGREEN 15575 is a high-performance USB-C to DisplayPort adapter designed for seamless 4K video output and universal compatibility. Supporting a wide range of devices including iPhone, Samsung Galaxy, MacBook, iPad, Dell, Microsoft Surface, Lenovo, and more, it ensures crisp visuals and stable...

The UGREEN 20448 Laptop Sleeve delivers “Protection in Style, Convenience in Motion.” With a three-layer design, it shields against moisture, scratches, and shocks while keeping accessories neatly organized. Sleek, lightweight, and perfectly sized for 13–13.9″ laptops, it’s the ideal everyday carry.

The UGREEN 80390 DP Male to Male DP1.4 8K Round Cable (1m, Black) features a durable ABS shell and braided design for enhanced protection and longevity. It supports ultra-high 8K resolution and high refresh rates, delivering crisp visuals and stable audio-video transmission for monitors, PCs,...

The UGREEN CM236 USB-C to Mini DisplayPort Adapter supports 4K@60Hz video output with mirror and extend modes. Compact aluminum design, plug-and-play, and optional PD passthrough for charging while in use.

The UGREEN 90798 Laptop Backpack B02 combines style and practicality with its sleek waterproof 600D Oxford cloth design. Featuring spacious compartments and a pearl cotton interlayer, it ensures superior laptop protection up to 15.6 inches. With durable YKK zippers and a modern dark grey finish,...

The UGREEN 15383 DP 8K 2.1 Male to Male Cable delivers ultra-high-definition 8K video and superior audio transmission, supporting high refresh rates and bandwidth for smooth, crystal-clear visuals. Designed for monitors, PCs, and gaming setups, it ensures stable performance with durable...

The UGREEN 40189 is a versatile HDMI capture card supporting 4K@60Hz input and 1080P@30Hz output via USB-A/Type-C. Compatible with iOS 17+, PS4/PS5 (HDCP off), and the latest iPhone 15 series, it works seamlessly with OBS, XSplit, Potplayer, and QuickTime for effortless streaming and recording

The UGREEN 80348 Adjustable Laptop Desk Stand – Silver is a stylish, portable, and practical accessory—ideal for elevating ergonomic comfort and safeguarding your device. Its minimalistic design, impressive stability, and universal compatibility make it a must-have for students, professionals,...

The UGREEN 10247 DP Male to VGA Male Cable (1.5m, Black) allows you to connect DisplayPort devices to VGA displays effortlessly. It supports high-quality video transmission, ensuring clear and stable visuals for monitors, projectors, and other VGA-compatible devices. Durable design guarantees...

The UGREEN 80890 is a Bluetooth 5.0 USB adapter that adds fast and stable Bluetooth connectivity to PCs and laptops, supporting wireless audio, file transfer, and peripheral connections with low latency and wide compatibility.

The UGREEN 40289 is a foldable aluminum laptop stand with 5 adjustable height levels, designed to improve posture and reduce strain.Lightweight yet sturdy, it supports devices up to 17.3″ and ensures better airflow to prevent overheating.With silicone padding and a compact foldable design, it’s...

The UGREEN 10238 DP Male to HDMI Male Cable (Black) provides high-speed connectivity between DisplayPort and HDMI devices. It supports up to 4K resolution at 60Hz, ensuring crisp visuals and smooth audio-video transmission for monitors, TVs, and other compatible devices.

The UGREEN 80889 USB Bluetooth 5.0 Adapter adds fast and stable Bluetooth connectivity to PCs and laptops, supporting wireless audio, file transfer, and peripheral connections with low latency and wide device compatibility.

The UGREEN 80551 is a compact 5-in-1 USB-C hub and foldable laptop stand that combines ergonomics with connectivity. It features USB-A, HDMI 4K, SD, and microSD ports, plus four adjustable viewing angles for comfort. Lightweight and durable, it supports laptops and tablets from 10″ to 15.6″.

The UGREEN 15773 DP Male to HDMI Male 4K Cable delivers high-speed connectivity with support for 4K resolution at 60Hz. It ensures sharp visuals and clear audio transmission, making it ideal for monitors, TVs, gaming setups, and other HDMI-compatible devices.

The UGREEN CM591 is a Bluetooth 5.3 USB adapter that adds fast, stable, and low-latency wireless connectivity to PCs and laptops, supporting headphones, speakers, keyboards, mice, and other Bluetooth devices with extended range and wide compatibility.

The UGREEN 20471 is an adjustable vertical laptop stand that fits devices up to 17.3″, saving desk space and improving airflow.Made from premium aluminum alloy with silicone padding, it ensures stability and protects against scratches.Its sleek, portable design makes it ideal for home, office, or...

The UGREEN VG101 (11630) VGA Male to Male Cable,  Black – high-quality OFC conductors, gold-plated connectors, multi-layer shielding with ferrite core. Ensures stable Full HD (1080p) video transmission for PC, laptop, monitor, or projector.

THe UGREEN 45134 Compact USB Bluetooth 5.4 adapter for PC, supporting up to 5 devices with a 20m range. Plug-and-play for Windows 7/8.1/10/11

The UGREEN 10243 DisplayPort to DVI (24+1) Cable lets you connect a DP-enabled computer or laptop to a DVI monitor, projector, or TV. It supports resolutions up to 1920×1080 @ 60Hz, features gold-plated connectors, tinned copper conductors, and multi-layer shielding for stable signal...

The UGREEN 45008 Bluetooth 5.3 & aptX Transmitter Audio Adapter (BT501) lets you enjoy wireless audio on PS5, PC, or Mac with ultra-low latency. Plug-and-play, compact, and ideal for gaming, movies, and music.

The UGREEN 15728 is a Full HD USB webcam with dual noise-cancelling microphones, delivering 1080p video at 30 FPS, clear audio up to 3 meters, smart light adjustment, and easy plug-and-play setup—ideal for video calls, streaming, and online classes.

The UGREEN DVI (24+1) Male to Male Cable – DV101 (11606) delivers stable, high-quality digital video up to 1080p. Features 24K gold-plated connectors, durable PVC jacket, and secure DVI-D (24+1) male ends—ideal for PCs, monitors, and projectors.

The UGREEN 80893 2-in-1 Bluetooth 5.0 receiver and transmitter with 3.5mm interface, ideal for adding wireless audio streaming to TVs, PCs, headphones, and speakers

The UGREEN CM717 is a 2K USB webcam with autofocus, automatic light correction, and dual noise-cancelling microphones for clear video and audio. It offers an 80° wide field of view, a privacy cover, 360° swivel with tilt, and plug-and-play compatibility across Windows, macOS, Linux, and...

The UGREEN DVI 24+1 to VGA Male–Male Cable (1.5m, MM118 / 30838) connects PCs or graphics cards with analog DVI-I output to VGA monitors, projectors, or TVs. It supports Full HD 1920×1080 @ 60Hz video, features gold-plated connectors for stable transmission, and is a simple plug-and-play solution...

The UGREEN 60300 2-in-1 USB 2.0 to 3.5mm Bluetooth 5.0 transmitter and receiver with included audio cable, perfect for streaming audio wirelessly between PCs, TVs, headphones, and speakers

The UGREEN 35626 is a 2K (2560×1440) USB webcam with a 4 MP CMOS sensor, delivering sharp video at 30 FPS. It features a wide 91° field of view, autofocus, and a 360° rotatable mount for flexible setup. Dual noise-cancelling microphones capture clear audio up to 5 m, while Dynamic Range...

The UGREEN LP106 30285 Multi-Angle Phone Stand offers adjustable viewing angles for smartphones, making it ideal for video calls, watching content, or browsing. Compact and durable, it keeps your device stable and accessible on any desk or surface.

The UGREEN Mini DisplayPort (MD111) male-to-male cable (2 m, white) lets you link Mini DisplayPort-enabled devices (like laptops, desktops or monitors) in mirror or extended display modes. It supports up to 4K resolution (3840×2160), is gold-plated for corrosion resistance, and works...

The UGREEN CM408 10928 USB 2.0 Bluetooth Transmitter 5.0, designed to add wireless connectivity to your devices. It features stable Bluetooth 5.0 technology, a compact plug-and-play design, and broad compatibility with headphones, speakers, keyboards, and other peripherals for a smooth wireless...

The UGREEN LP115 30485 Multi-Angle Tablet Stand provides adjustable viewing angles for tablets, ideal for video calls, watching content, or reading. Sturdy and compact, it keeps your device stable and easily accessible on any desk or surface.

The UGREEN Mini DP to DP Cable (1.5m, MD105/10477) connects Mini DisplayPort or Thunderbolt 2 devices to DisplayPort displays. It supports up to 4K@60Hz video & audio, features gold-plated connectors, multi-layer shielding, and offers plug-and-play reliability in a compact 1.5m length.

The UGREEN Cannon Male Connector (model 80439) is a 3-pin XLR male plug designed for reliable audio connections. Its zinc-alloy shell offers durability and a premium feel, while gold-plated contacts help ensure clean signal transmission with minimal noise. This connector is ideal for microphones,...

The UGREEN LP247 80704 Multi-Angle Phone Stand with Height Adjustable feature offers customizable viewing angles and height for smartphones. Sturdy and portable, it keeps your device stable and easily accessible for calls, videos, or browsing.

The UGREEN Mini DisplayPort (Mini DP) to HDMI Cable 4K (MD101 / 20848) lets you connect Mini DP/Thunderbolt 2 laptops and tablets to HDMI TVs, monitors, or projectors. It supports resolutions up to 4K @ 30Hz with audio and video in one cable, features gold-plated connectors, tin-plated copper...

The UGREEN Cannon Female Connector (3-pin XLR) provides a secure, high-quality connection for microphones, mixers, amplifiers, and other professional audio gear. It features a robust zinc-alloy shell and gold-plated contacts to deliver clean signal transfer and enhanced durability.

The UGREEN LP263 80708 Foldable Multi-Angle Phone Stand Grey offers adjustable viewing angles and a compact, foldable design for easy portability. It provides stable support for smartphones, ideal for watching videos, video calls, or browsing.

The UGREEN USB to DB9 RS-232 Adapter Cable (CR104 / 20210) lets you easily connect modern computers to legacy serial devices. Featuring a USB-A to DB9 male (RS-232) interface and stable chipset, it supports up to 115200 bps for routers, switches, POS systems, scanners, modems, GPS units, and...

The UGREEN 20501 is a compact 2.5 mm male to 3.5 mm female audio adapter, built with gold-plated connectors and copper conductors. It lets you connect standard 3.5 mm headphones or aux cables to devices with a 2.5 mm audio port. Durable, lightweight, and plug-and-play — ideal for extending...

The UGREEN LP373 20434 Foldable Multi-Angle Phone Desktop Stand with Height Adjustable feature offers customizable viewing angles and height for smartphones. Foldable and portable, it provides stable support for video calls, watching content, or browsing.

The UGREEN USB 2.0 to DB9 RS-232 Adapter (2m) – CR107 (20218) connects your PC or laptop to legacy RS-232 devices such as modems, routers, POS systems, barcode printers, and industrial equipment. Featuring a durable flat 2m cable, stable chipset, and broad OS compatibility, it ensures reliable...

The UGREEN 20502 converts a 3.5 mm male plug to a 2.5 mm female jack—ideal for using 2.5 mm headsets on 3.5 mm devices.

The UGREEN LP177 60343 Multi-Angle Phone Desktop Stand offers adjustable viewing angles for smartphones, providing stable support for video calls, watching content, or browsing. Compact and durable, it’s ideal for use on any desk or flat surface.

The UGREEN DB9 RS-232 Adapter Cable (Black) – DB101 / 20145, 1.5 m male-to-female straight-through serial cable with 30 AWG copper conductors, gold-plated pins, secure locking screws, and shielded PVC jacket for stable RS-232 connections between PCs and legacy devices.