Tripp Lite
1111 W. 35th Street
Chicago, IL 60609
+1 (773) 869-1776
+1 (773) 869-1329

USB-C Dock, Dual Display - 5K 60 Hz DP, 4K 60 Hz HDMI, USB 3.2 Gen 1, USB-A/C Hub, GbE, 85W PD Charging

USB-C dock with DisplayLink technology and 14 ports lets you mirror or extend video from your laptop or PC across 2 monitors simultaneously.
  • Supports 5K @ 60 Hz on one DisplayPort monitor (when connected to both DP ports)
  • Extends/mirrors 4K @ 60 Hz across 2 DP, 2 HDMI or HDMI/DP monitors simultaneously
  • Supports 20V 4.25A (85W) power output for fast-charging large-capacity mobile devices
  • Connects you to a wired 10/100/1000 Ethernet network when no Wi-Fi is available
  • USB-C and USB-A hub ports allow connection of flash drives and other peripherals
  • 3-year limited warranty

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USB-C Docking Station Turns Your Device’s USB or Thunderbolt 3 Port into 14 New Ports
This universal USB-C dock with PD Charging expands the potential of your Windows laptop, Chromebook, smartphone or PC’s USB-A, USB-C or Thunderbolt 3 port. Connect the docking station using the included USB-C cable, and add 14 ports to your device:
  • (2) 4K HDMI
  • (2) 4K DisplayPort
  • RJ45 Gigabit Ethernet
  • (4) USB 3.0
  • USB 3.0 with BC 1.2
  • USB-C PD Charging
  • USB-C data
  • (2) 3.5 mm stereo
Transmits Crystal-Clear True 5K/4K Video and Digital Audio with 4:4:4 Color
The HDMI and DisplayPort (DP) outputs support true 4K resolutions up to 4096 x 2160 at 60 Hz with 4:4:4 chroma subsampling for top-level PC gaming or using your HDTV as a PC monitor. When both DP outputs are connected to one DP monitor, that monitor will support 5K video up to 5120 x 2880 at 60 Hz.
DisplayLink Technology Allows Connection of Multiple Displays
By downloading and installing the proper DisplayLink drivers to your host device, you may connect two external displays simultaneously. This allows you to display the image from the host computer on both monitors, extend your host desktop across both with different windows open on each, or combine all into one large display as a video wall. Connect multiple monitors (dual 4K @ 60 Hz DP; dual 4K @ 60 Hz HDMI; or 4K @ 60 Hz DP and 4K @ 60 Hz HDMI) in Extended and Mirror modes. Note: Mac OS laptops or computers will only extend to one monitor. The others will be mirrored.
USB Hub Ports Connect Keyboards, Thumb Drives and Other Peripherals
One USB-C and five USB-A ports accept USB peripherals, such as flash drives, mice, keyboards and printers. All support fast USB 3.2 Gen 1 data transfer rates up to 5 Gbps and are backward compatible with USB 2.0 and USB 1.1 devices. One USB-A port also supports BC 1.2 charging with 5V 1.5A (7.5W) of power dedicated to fast-charging your mobile device. Note: Host must support USB OTG (On-the-Go).
PD Charging Port Charges the Connected Notebook, Tablet or Other Device
Connect your host device to the USB-C Power Delivery port, which supports PD 2.0 charging of connected PD Charging-compliant devices, such as laptops, Kindles, iPads and Android smartphones, up to 20V 4.25A (85W). The included power supply, when plugged into an AC outlet, provides the charging power. 
Accesses a Wired Gigabit Ethernet Network
The RJ45 port offers access to a Gigabit Ethernet network when Wi-Fi is unavailable or when a wired connection offers faster speeds. Connect using a UTP cable (sold separately), and enjoy true 10/100/1000 Mbps Ethernet speeds for fast data transfers.
Connects Speakers, Microphone and Other Audio Equipment
Two 3.5 mm mini stereo jacks are convenient for connecting speakers, headphones and/or a microphone to your workstation. You can listen to music or record the latest episode of your podcast.
Anti-Theft Lock Protects the Docking Station When You Aren’t Around
Connect a user-supplied computer/laptop security cable lock (not included) to this K-lock port to protect your source device against theft.
Detachable USB-C Cable Connects in Either Direction
Unlike traditional USB cables that connect in only one direction, the reversible USB-C male connector plugs into a USB-C or Thunderbolt 3 port in either direction for an instant connection every time. A USB-C to USB-A adapter is included for connecting the docking station to your host device’s USB-A port.

System Requirements

  • Source device with USB-A, USB-C or Thunderbolt 3 port and DisplayLink drivers installed
  • Display devices with HDMI and/or DisplayPort input 
  • Any major operating system

Package Includes

  • U442-DOCK21-B USB-C Dock, Dual Display, Black
  • USB-C cable, 1 m
  • USB-C to USB-A adapter
  • External power supply (Input: 100–240V, 50/60 Hz, 1.8A; Output: 20V 6.75A)
  • C5 to NEMA 5-15P Adapter, 5 ft.
  • Owner’s manual
RoHS compliant


UPC Code037332253477
Product TypeDocking Station
TechnologyCat6; HDMI
Host ConnectorUSB A (MALE); USB C (MALE)
Number of Monitors Supported2
Video Ports DetailsDisplayPort 1.2; HDMI 2.0
Resolutions Supported
DisplayPort (Single): 4K 60Hz (4096 x 2160)
DisplayPort (Dual): 5K 60Hz (5120 x 2880)
HDMI (Dual & Single): 4K 60Hz (4096 x 2160)
Max Supported Video ResolutionDual DP: 5120 x 2880@60Hz; Single DP: 4096 x 2160@60Hz; Dual/Single HDMI: 4096 x 2160@60Hz; DP/HDMI: 4096 x 2160@60Hz
Extended ModeYes
Extended Mode Details
2x DP (4K 60Hz)
2x HDMI (4K 60Hz )
1x DP (4K 60Hz) + 1x HDMI (4K 60Hz)
Mirror ModeYes
Mirror Mode Details
2x DP (4K 60Hz)
2x HDMI (4K 60Hz )
1x DP (4K 60Hz) + 1x HDMI (4K 60Hz)
HDR SupportNo
Audio Ports(2) 3.5MM (FEMALE)
Audio Ports Details

Separate 3.5 mm mini stereo jacks for speakers and microphone

Audio Specification2.1 Channel Surround Sound, TRRS
Data Ports(1) USB C (FEMALE); (5) USB A (FEMALE)
Data Ports Details(1) USB-C - USB 3.2 Gen 1 (5 Gbps); (5) USB-A - USB 3.2 Gen 1 (5 Gbps)
Network PortsRJ45 (FEMALE)
Voltage Compatibility (VAC)100; 110; 120; 125; 127; 200; 208; 220; 230; 240
Battery Charging (5V/1.5A Port)Yes
AC AdapterInput: 100–240V, 50/60 Hz, 1.8A; Output: 20V, 6.75A
External Power Supply Input Specs (V / Hz / A)100-240V~50/60Hz, 1.8A
External Power Supply Output Specs (V / A)20V/6.75A
External Power Supply Cord Length (ft.)5.25
External Power Supply Cord Length (m.)1.6
DC Barrel PlugOD: 5.5 x 2.5 x 10mm, Positive Pin, Negative Sleeve
Power Consumption (Watts)15.00
External Power Supply Plug(s)NEMA 5-15P North America
USB Power Delivery (PD) Charging SupportYes
USB Power Delivery (PD) Charging Specification2.0
LED IndicatorsPower (Blue), USB Connection (Green)
Total Charging Watts100
Charging PortsUSB-A: 5V 1.5A (7.5W); USB-C: 100W (20V 5A) Power Delivery (PD 2.0)
Charging Ports / Amps1.5A; 5A
Material of ConstructionPolycarbonate, ABS
Cable Jacket RatingVW-1
Cable Outer Diameter (OD)5.0mm
Cable Length (ft.)3.28
Unit Dimensions (hwd / in.)9.84 x 3.24 x 1.36
Unit Packaging TypeBox
Unit Weight (lbs.)0.86
Operating Temperature Range32 to 104°F (0 to 40°C)
Storage Temperature Range-4 to 158°F (-20 to 70°C)
Relative Humidity20% to 80% RH, Non-Condensing
Operating Humidity Range20% to 80% RH, Non-Condensing
Storage Humidity Range20% to 80% RH, Non-Condensing
Power Provided to Connected Device(s)USB-C PD: 20V/4.25A (85W),USB3.0-A Ports: 5V/0.9A (4.5W), USB3.0-A BC1.2 Port: 5V/1.5A (7.5W); USB-C: 5V/1.5A (7.5W)
Network Compatibility1 Gbps (Gigabit)
Number of Ports15
Dock ConnectorsUSB-C, USB-C PD Charging, (4) USB-A 3.2 Gen1, USB-A 3.2 Gen1 BC 1.2, (2) DisplayPort, (2) HDMI, (2) 3.5mm, RJ45
Side A - Connector 1USB C (FEMALE)
Side B - Connector 1(2) DISPLAYPORT (FEMALE); (2) HDMI (FEMALE)
Side B - Connector 2(5) USB A (FEMALE)
Side B - Connector 3RJ45 (FEMALE)
Side B - Connector 4(2) 3.5MM (FEMALE)
Side B - Connector 5USB C (FEMALE)
Displayport Specification1.2
USB Hub PortsYes
Number of USB Hub Ports5
USB SpecificationUSB 3.0 (up to 5 Gbps); USB 3.2 Gen 1 (up to 5 Gbps)
Driver RequiredYes
Recommended Category CableCat6 Cables
UASP Support  No
Auto MDIX Support  Yes
Full Duplex Support  Yes
Suspend Mode Support  Yes
Remote Wakeup SupportYes
CertificationsTested to FCC, RoHS, REACH
External Power Supply CertificationsCE; GS; UL; cUL
Product Warranty Period (Worldwide)3-year limited warranty

Questions & Answers

More Q&As may be available on the U442DOCK21B model support page.

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+1 (773) 869-1776

Mon - Fri: 8 AM - 5:30 PM CST
+1 (773) 869-1234

Tripp Lite
1111 West 35th Street
Chicago, Illinois 60609
United States

+1 (773) 869-1111 Main
1 773.869.1329 Fax

Business Hours
8 AM - 5:30 PM CST

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We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 (773) 869-1776 or email