Tripp Lite
1111 W. 35th Street
Chicago, IL 60609
1 773.869.1774
1 773.869.1329

USB-C Dock, 4K HDMI, VGA, Gbe, 2x USB-A Ports, 1X USB-C Port, SD Card Reader, 100W PD 3.0

Model Number: U442-DOCK3-B

USB-C docking station adds HDMI, Gigabit ethernet, memory card, PD Charging and other ports to turn your Chromebook, MacBook, smartphone, tablet or PC into a complete workstation.
  • Transmits audio/video signals from sources supporting USB DisplayPort Alt Mode
  • HDMI port delivers UHD picture quality at resolutions up to 4K x 2K @ 30 Hz
  • Connects you to a wired Ethernet network when Wi-Fi is weak or unavailable
  • Powers and charges PD Charging 3.0-compliant devices, such as MacBooks and Chromebooks
  • Easy installation with plug-and-play operation—no software required
  • 3-year limited warranty

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1 773.869.1774


USB-C Docking Station Turns Your Device’s USB-C or Thunderbolt 3 Port into a Multiport Workstation
The U442-DOCK3-B expands the potential of your tablet, laptop, Chromebook, MacBook, smartphone or PC’s USB-C or Thunderbolt 3 port. It’s ideal for transmitting 4K video and audio to a large display, adding a thumb drive or other USB peripheral, powering and charging a PD Charging 3.0-compliant mobile device, connecting to a Gigabit Ethernet network and a lot more—all at the same time.
Supports USB DisplayPort Alternate Mode for Transmitting Audio/Video Signals
With a source device that also supports USB DisplayPort Alt Mode, you can extend video from your primary display to another, duplicate the same video on both displays, or change the second display to your primary.
Transmits Crystal-Clear 4K HDMI Video and Digital Audio
To send digital audio and Ultra High Definition video to a 4K-ready HDMI television, projector or monitor, connect the corresponding port to the display using an HDMI cable (sold separately). The HDMI port supports UHD video resolutions up to 3840 x 2160 (4K x 2K) at 30 Hz. The VGA port supports high-definition resolutions up to 1920 x 1200, including 1080p, at 60 Hz. A DVI display may be connected to the HDMI port using an HDMI to DVI adapter (sold separately).
Connects Up to 3 USB Peripherals
The two USB-A hub ports and single USB-C data port accept USB peripherals, such as flash drives, mice, keyboards and printers, and share a maximum 10W (5V 2A) of power. They support fast USB 3.1 Gen 1 data transfer rates up to 5 Gbps and are backward compatible with USB 2.0 and USB 1.1 devices. The BC 1.2-compliant USB-A port next to the memory card slots provides up to 1.5A of fast-charging power to mobile devices.
Charges the Connected Device
The USB-C Power Delivery (PD) port provides power and charging to the PD Charging 3.0-compliant device (such as a MacBook, Chromebook or Android smartphone) the U442-DOCK3-B is connected to. Connect the device’s AC wall charger to the USB-C PD port, which supports power input up to 100W (20V 5A). When the wall charger is unplugged, the unit’s PD 3.0 Fast Role Swap feature ensures all data and power connections remain stable.
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.
Allows External Memory Access
The memory card slots support Micro SD and SD/MMC cards for transferring data to and from your connected computer, laptop or tablet. Only one memory card slot can be used at a time.
Built-In USB-C Cable Connects in Either Direction
Connect the reversible USB-C plug to your source device’s USB-C or Thunderbolt 3 port. The fumble-free USB-C plug connects in either direction to ensure fast, easy connection every time. The built-in cable tucks away beneath the compact unit for safe carrying in a pocket, briefcase or laptop bag.
Ready to Use Right Out of the Package
Enjoy the convenience of one multiport USB-C docking station instead of several different port converters. The plug-and-play USB-C dock for MacBooks, Chromebooks and other devices requires no software, drivers or external power.
3-Year Warranty and Environmentally Responsible Design
The U442-DOCK3-B comes with a 3-year warranty. It’s manufactured in compliance with strict RoHS specifications, reflecting Tripp Lite’s commitment to environmental responsibility.

Typical Applications

  • Play video from your laptop or PC on an HDMI or VGA display, such as an HDTV or projector
  • Access a wired Ethernet network in a location with no or spotty Wi-Fi
  • Upload data from your notebook or download data from the Ethernet at true 10/100/1000 Mbps Ethernet speeds
  • Transfer data to and from a USB flash drive or Micro SD or SD/MMC memory card
  • Charge your notebook or laptop by connecting its wall charger to the USB-C PD Charging 3.0 port
  • Connect a USB microphone/headset to record a podcast or listen to music
  • Write a report using a USB keyboard with your tablet or Android smartphone

Package Includes

  • U442-DOCK3-B USB-C Laptop Docking Station - HDMI, VGA, GbE, 4K, Thunderbolt 3, USB-A, USB-C, PD Charging 3.0, Black
  • Owner’s manual

System Requirements

  • Source device with USB-C or Thunderbolt 3 port that supports USB DisplayPort Alternate Mode
  • Display device with VGA, DVI* or HDMI input
*Requires adapter (sold separately)
RoHS compliant


UPC Code037332213495
Charging Ports / Amps3A / 2A / 1.5A
Charging Watts100
Bus Powered  Yes
Product Length (in.)9.4
Product Length (cm.)23.88
Product Length (ft.)0.78
Product Length (m.)0.24
Battery Charging (1.2 Port)Yes
LED IndicatorsGreen (Power) and Orange (Activity)
Cable Jacket RatingVW-1
Material of ConstructionABS/Plastic
Unit Dimensions (hwd / in.)0.55 x 4.8 x 2.8
Unit Packaging TypeBox
Unit Weight (lbs.)0.20
Operating Temperature Range32 to 113 F (0 to 45 C)
Storage Temperature Range14 to 158 F (-10 to 70 C)
BTUs  17.1 BTU/Hr
Power Consumption (Watts)5
Operating Humidity Range10% to 85% RH, Non-Condensing
Storage Humidity Range5% to 90% RH, Non-Condensing
Network Speed1Gbps
IEEE Standards Supported802.3; 802.3u; 802.3az; 802.3x
Dock ConnectorsUSC-C 3.0 Data, (x2) USB-A, Micro SD Memory Card, SD/MMC Memory Card, HDMI, VGA, RJ45, USB-C PD Charging
Side A - Connector 1USB Type-C (MALE)
Side B - Connector 1HD15 (FEMALE); HDMI (FEMALE); RJ45 (FEMALE); USB Type-C (FEMALE)
Side B - Connector 2MICRO SD (FEMALE); SD (FEMALE); (2) USB 3.0 A (FEMALE); USB Type-C (FEMALE)
Connector PlatingNickel
Max Supported Video ResolutionHDMI: 3840 X 2160 (4K X 2K) @ 30HZ; VGA: 1920 X 1200 (1080P) @ 60HZ
HDMI Specification1.4
HDCP Specification1.4
USB SpecificationUSB 3.0 (up to 5 Gbps); USB 3.1 Gen 1 (up to 5 Gbps)
Driver RequiredNo
Recommended Category CableCat5/Cat5e/Cat6 Cables
USB Power Delivery (PD) Charging SupportYes
Auto MDIX Support  Yes
Full Duplex Support  Yes
Suspend Mode Support  Yes
Remote Wakeup SupportYes
TechnologyCat5/5e; Cat6; HDMI; USB; USB 3.0 (SuperSpeed); USB 3.1 (Gen 1); VGA/SVGA
SD Card SpecificationSD; Micro SD
USB Power Delivery (PD) Charging Specification3.0
CertificationsTested to CE, FCC, RoHS
Product Warranty Period (Worldwide)3-year limited warranty


Network Cables & Adapters
  Model Number Description
N201-003-BK | Network Cables & Adapters N201-003-BK Cat6 Gigabit Snagless Molded Patch Cable (RJ45 M/M) - Black, 3-ft.
N201-006-BK | Network Cables & Adapters N201-006-BK Cat6 Gigabit Snagless Molded Patch Cable (RJ45 M/M) - Black, 6-ft.
N201-010-BK | Network Cables & Adapters N201-010-BK Cat6 Gigabit Snagless Molded Patch Cable (RJ45 M/M) - Black, 10-ft.
Digital Signage & Audio/Video
  Model Number Description
P502-003 | Digital Signage & Audio/Video P502-003 VGA Coaxial High-Resolution Monitor Cable with RGB Coaxial (HD15 M/M), 2048 x 1536 (1080p), 3 ft.
P502-006 | Digital Signage & Audio/Video P502-006 VGA Coaxial High-Resolution Monitor Cable with RGB Coaxial (HD15 M/M), 2048 x 1536 (1080p), 6 ft.
P502-010 | Digital Signage & Audio/Video P502-010 VGA Coaxial High-Resolution Monitor Cable with RGB Coaxial (HD15 M/M), 2048 x 1536 (1080p), 10 ft.
P566-006 | Digital Signage & Audio/Video P566-006 HDMI to DVI Cable, Digital Monitor Adapter Cable (HDMI to DVI-D M/M), 1080P, 6-ft.
P568-003 | Digital Signage & Audio/Video P568-003 High Speed HDMI Cable, Ultra HD 4K x 2K, Digital Video with Audio (M/M), Black, 3-ft.
P568-006 | Digital Signage & Audio/Video P568-006 High Speed HDMI Cable, Ultra HD 4K x 2K, HDMI to HDMI (M/M), Black, 6-ft.
P568-010 | Digital Signage & Audio/Video P568-010 High Speed HDMI Cable, Ultra HD 4K x 2K, Digital Video with Audio (M/M), Black, 10-ft.
USB, Lightning & FireWire
  Model Number Description
U322-003-BK | USB, Lightning & FireWire U322-003-BK USB 3.0 SuperSpeed Device Cable (AB M/M) Black, 3-ft.
U322-006-BK | USB, Lightning & FireWire U322-006-BK USB 3.0 SuperSpeed Device Cable (AB M/M) Black, 6-ft
U326-003-BK | USB, Lightning & FireWire U326-003-BK USB 3.0 SuperSpeed Device Cable (A to Micro-B M/M) Black, 3-ft.
U326-006-BK | USB, Lightning & FireWire U326-006-BK USB 3.0 SuperSpeed Device Cable (A to Micro-B M/M) Black, 6-ft
U420-003-G2-5A | USB, Lightning & FireWire U420-003-G2-5A USB 3.1 Gen 2 (10 Gbps) Cable with 5A Rating, USB-C to USB-C (M/M), 3 ft.
USB Cables
  Model Number Description
U420-003-G2-5A | USB Cables U420-003-G2-5A USB 3.1 Gen 2 (10 Gbps) Cable with 5A Rating, USB-C to USB-C (M/M), 3 ft.

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We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at 1 773.869.1774 or email