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The Plugable USB 3.0 dual display adapter adds two monitors and Gigabit Ethernet to Windows and macOS laptops via a single USB connection.
Categories : Series
SKU : POR-SER-821
The Plugable USB 3.0 Dual Display Adapter with Gigabit Ethernet is powered by the DisplayLink DL-3900 chipset, making it an ideal external graphics card for laptop users. Add dual video outputs and wired Gigabit Ethernet to compatible Windows and macOS systems with ease. This adapter is perfect for professionals who need extra monitor real estate without opening their laptop or using internal graphics.
Equipped with both HDMI and DVI-I ports, this adapter supports either one HDMI display up to 2560x1440 @ 50Hz or dual 1920x1200 monitors @ 60Hz. Whether you're connecting through a DVI to HDMI adapter or using native DVI, you have flexible options to fit your monitors. The integrated Gigabit Ethernet port ensures a fast and reliable wired network connection, crucial for large file transfers and online collaboration.
Using proven DisplayLink technology, this adapter works with almost any laptop featuring a USB 3.0 port. It's compatible with Windows, macOS, and Chrome OS (v100+), making it a versatile tool for IT departments and mobile professionals. Simply install the DisplayLink driver, plug in, and extend your desktop in seconds.
The compact design fits easily in a laptop bag, and the USB bus-powered design requires no external power supply. The included USB 3.0 cable ensures full bandwidth for smooth video output.
For users seeking a cost-effective, portable solution to add multiple monitors and wired networking, the Plugable USB 3.0 Dual Display Adapter is an excellent choice.
Dual monitor support with HDMI and DVI-I outputs, up to 2560x1440.
Integrated Gigabit Ethernet for fast, reliable wired networking.
Portable, bus-powered design—no external power needed, ideal for travel.
Model: UD-3900
Weight: 3.2 oz
Chipset: DisplayLink DL-3900
Ethernet: Gigabit (10/100/1000)
Warranty: 2-year limited
Dimensions: 2.8 x 2.2 x 0.8 inches
Product Type: USB 3.0 Dual Display Adapter with Ethernet
Compatibility: Windows, macOS, Chrome OS (v100+)
Video Outputs: 1x HDMI, 1x DVI-I
Max Resolution: Single: 2560x1440 @ 50Hz, Dual: 1920x1200 @ 60Hz
Host Connection: USB 3.0 (backward compatible with USB 2.0)
Package Contents: Adapter, USB 3.0 cable, quick start guide
Seller: PortSide Gear
MPN: UD-3900
Boost your productivity with the Plugable USB 3.0 Dual Display Adapter. Its compact, lightweight design makes it perfect for on-the-go professionals who need multiple screens without the hassle. The adapter is bus-powered, so there's no extra power brick to carry. The USB 3.0 connection ensures smooth video playback and fast data transfer. With a 2-year warranty and dedicated technical support, you can rely on Plugable for your connectivity needs. Perfect for financial analysts, engineers, and multitaskers—this adapter brings the desktop experience anywhere.
No, the maximum resolution is 2560x1440 (single display) or 1920x1200 (dual displays). For 4K, you'd need a different adapter or a docking station with DisplayPort 1.4.
Yes, it works with macOS 10.14 and later. You'll need to install DisplayLink drivers. Some features may be limited on Apple Silicon Macs; check Plugable's support for details.
Yes, the adapter is compatible with Chrome OS version 100 or later. DisplayLink drivers are built into Chrome OS, so plug-and-play may work.
Yes, you can use both ports simultaneously to drive two monitors. You may need an adapter for DVI to VGA or DVI to HDMI depending on your monitor's inputs.
I was skeptical about using a USB adapter for dual monitors, but this thing works flawlessly. I plugged it into my Dell laptop and both monitors lit up immediately. The Ethernet port is a bonus, and the gigabit speed is stable. It's been a game-changer for my productivity.
Got this to add two monitors to my MacBook Pro. Setup was easy—just installed the driver and it worked. The display quality is good, not blurry as I feared. The Ethernet port is handy, but I wish the adapter were a bit more compact. Still, it does the job.
I've had this adapter for over a year. It's been reliable, surviving daily use with my Lenovo ThinkPad. The dual display output is crisp, and the Ethernet port is fast. I even had a question about a firmware update, and Plugable's support was quick and helpful. Highly recommend.
On Windows it worked out of the box after installing the DisplayLink driver. But on Linux, it's a pain—had to mess with open-source drivers and still get occasional glitches. If you're on Linux, be prepared to tinker. If you're on Windows/Mac, it's fine.
I run a dual-monitor setup for trading, and this adapter is rock solid. The image is sharp, and the Ethernet port is a nice extra for a stable connection. It's been running for months without a hiccup. Great value for the price.
The adapter works well—both monitors display fine, and the ethernet is stable. But it's bigger than I expected, so it takes up desk space. Not a big deal, but if you're short on space, it's something to consider. Performance-wise, I'm happy.
Sadly, this adapter wouldn't output to both monitors on my Surface Pro 7. I contacted support, but after multiple attempts, we couldn't get it working. It might work with other laptops, but if you have a Surface, check compatibility first.
My old laptop only had one HDMI port, and I needed dual monitors. This adapter gave me that without buying a new machine. It's been running smoothly for weeks. The Ethernet port is another plus—faster and more reliable than Wi-Fi. Very satisfied.
Works fine for office work and watching videos, but don't expect to play games on it. There's a slight lag, which is expected with USB display adapters. For productivity, it's great. Just keep your expectations in check.
I plugged it into my HP laptop, installed the driver, and it just worked. Both monitors are recognized, and I can extend or mirror. The Ethernet port is fast. No issues at all. I bought a second one for my desk at work.
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Phone: +1 (206) 555-0148
Email: support@portsidegear.us
Address: 2815 Alaskan Way, Suite 300, Seattle, WA 98121, United States