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Features:
- Flexible Expandability - Featuring a hybrid 2-in-1 USB 3.0 and USB-C cable. a single connection from a host PC to this USB dock provides dual video outputs. wired Gigabit Ethernet. 3.5mm Headphone and Microphone jacks. two USB 3.0 ports. and four USB 2.0 ports
- Dual HD Monitors - Supports dual HDMI displays up to 1920x1200 @ 60Hz refresh rate. Second output can support HDMI. DVI. or VGA display with included adapter. Capable of 2560x1440 @ 50Hz with a single HDMI display
- Compatibility - This laptop docking stations compatibility is universal; compatible with Windows 11. 10. 8.x and 7. macOS 10.14 or later. and ChromeOS 100 or later. Plug and play driver installation via Windows Update; manual driver installation on macOS. Dock does not charge host PC
- For Best Results - Can use the USB docking station with web and productivity software; not recommended for gaming. Not supported: some non-DisplayLink adapters. DisplayPort connections. HDCP-will not playback encrypted or copy-protected content
- 2 Year Warranty - We love our Plugable products. and hope you will too. All of our products are backed with a 2-year limited parts and labor warranty as well as Seattle-based email support
Compatibility
Windows 10. 8.1. 8. and 7 drivers can be automatically installed by Windows Update (with an existing Internet connection) or can be downloaded from Plugable.com/drivers.
Requires Intel / AMD / NVIDIA main GPU and driver. USB graphics require dual-core 2GHz+ CPU for best performance.Up-to-date USB drivers on host system recommended.
DVI dual-link connection not supported. 2560x1440 (1440P) resolution only available with native HDMI monitor. 1440P not supported when using HDMI-to-DVI adapter/cable or DVI monitor.
Cannot be mixed with non-DisplayLink USB graphics adapters and drivers (e.g. MCT. j5. or SMSC). HDCP/Blu-ray playback not supported. Not recommended for gaming.
Mac OS X. ARM-based versions of Windows (Surface RT) and Linux/Unix are not supported.
Power
Includes robust 20W UL certified power supply for supporting several devices requiring USB 3.0's more demanding 900mA per-port power. Does not provide power to attached computer.
In the Box
UD-3900. premium 20W UL certified power adapter (US AC Wall Outlet Plug. 100-240V 50/60Hz). USB 3.0 Type-A male to Type-B male cable (USB 2.0 compatible). DVI-to-VGA adapter. quick-install guide
Compatibility
| Laptop Compatibility | Compatible with most modern laptops and desktops running Windows 11 / 10 / 8.x / 7. Macs with 10.14.x / 10.15.x / 11.x. and ChromeOS version 100 or newer. The box includes a hybrid 2-in-1 USB 3.0 and USB-C cable to connect the dock to your laptop. |
| Not compatible with: macOS 10.13.x and earlier. Linux / Unix. and ARM-based Windows systems | |
| Monitor Compatibility | Supports two high-resolution monitors up to 1920x1200 @ 60Hz. Compatible with HDMI DVI and VGA displays. Conversion to Dual-Link DVI (DL-DVI) is not supported. DisplayPort displays are not supported. |
| Software Compatibility | DisplayLink is a flexible and versatile technology that's great for most users' workflow. But there are a few scenarios where it's not the right fit such as gaming and HDCP (copy-protected) content playback from Blu-ray/Netflix/Prime/ iTunes/Hulu/etc. |
| Power and Charging | This dock does not provide power to the connected laptop or tablet��the laptop will still require a separate charger.It cannot control the power of the laptop. |
🔥Today's Deal
📩 24/7 Customer Service: Our customer support team is online 24/7 to answer all your questions.
🔒 Secure Payments: We use the most advanced SSL encryption technology to ensure 100% protection of your personal and financial data.
🪐 We work directly with manufacturers around the world to ensure the best quality products in the world. We also have a dedicated quality control department to help us deliver on our promises!
🥇 Our prices are competitive from start to finish. We guarantee that we will spend money on product production and quality control.

Free Exchanges
If you're not satisfied with your purchase for any reason, our return policy allows you to send back returns-eligible merchandise within 30 days of the date you received the package for an exchange. Simply use the Q Return Label within 30 days of receipt to return your item for a free replacement of the same item in a different color or size. If your request for an exchange results in any additional merchandise or shipping costs, and you paid by credit card, your credit card will be charged for those additional costs. Payment methods other than a credit card may result in an order cancellation & a refund may be issued. If the requested exchange is no longer available, including items on the waitlist and advance order, we will issue a refund and not deduct the Q Return Label fee.

🌈 Good motivation
After every order, we give you 10% of the profit to Save the Children.
Save the Children started working in this area in 1932 to support the most isolated and neglected rural children in the world.

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