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Adds 8K HDMI, 3 USB-A hub ports and USB-C PD charging to the USB-C or Thunderbolt 3 port on your MacBook, Windows laptop or Chromebook.

  • Supports UHD resolutions up to 8K @ 30 Hz (4:4:4) for state-of-the-art video quality
  • Carries High Dynamic Range (HDR) signals for rich contrast and expanded color accuracy
  • Supports 20V 5A (100W) power output for charging the host device during use
  • USB-A hub ports support lightning-fast USB 3.2 Gen 2 (10 Gbps) data transfer rates
  • Complies with HDCP 2.3 standards to display up-to-date 4K/8K video content
  • 1-year limited warranty


USB-C Mini Dock Turns Your Device’s USB-C or Thunderbolt 3 Port into a Multiport Workstation
This versatile 8K adapter adds multiple ports to the USB-C or Thunderbolt 3 port on your MacBook Pro, Windows laptop or Chromebook. The U442-DOCK40-5 allows you to transmit digital audio and 8K video to an external display, add USB peripherals, and power and charge a PD Charging-compliant host device simultaneously. It is ideal for future-proofing your high-definition or Ultra HD application in anticipation of an 8K upgrade.

Supports USB-C DisplayPort Alternate Mode for Transmitting Audio/Video Signals
By connecting the built-in USB-C cable to a source device that supports USB DisplayPort Alt Mode, you can output 8K video and digital audio to a compatible HDMI monitor, television or projector without installing special software drivers.

Enjoy the Clarity of 4K/8K Video with Multi-Channel Audio, HDR and 4:4:4 Color
The HDMI port supports 8K UHD resolutions up to 7680 x 4320 at 30 Hz for professional photo and video editing. It also supports High Dynamic Range (HDR10+), providing a wide range of vibrant colors with richer contrast, brighter whites and deeper blacks. HDCP 2.3 compliance allows you to stream 4K content with no complications. This adapter also supports 4:4:4 chroma subsampling for top-level PC gaming or using your HDTV as a PC monitor.

Connects USB Peripherals and Transfers Data at Fast USB 3.2 Gen 2 Speeds
Three USB 3.2 Gen 2 ports accept USB peripherals, such as flash drives, mice, keyboards and printers. They support lightning-fast data transfer rates up to 10 Gbps and are backward compatible with USB 2.0 and USB 1.1 devices. One port provides up to 5V/1.5A (7.5W) of charging power to mobile devices. The three ports share a budget of 12W (2.4A total) and support over-current and short-circuit protection.

PD 3.0 Charging Port Charges High-Powered Devices via AC Wall Charger
The USB-C Power Delivery port provides power output up to 20V 5A (100W), which is sufficient for charging and powering the connected source device, such as a MacBook or Chromebook. Just connect the device’s AC wall charger to the USB-C PD port.

Ready to Use Right from the Package, So You Can Plug and Play Immediately
The plug-and-play USB-C multiport adapter is specifically designed for the MacBook Pro, Windows laptops and other notebooks, smartphones, tablets and devices equipped with a USB-C or Thunderbolt 3 port. It requires no extra software to be downloaded or installed. Its thin profile design fits easily into a pocket, purse or laptop bag for convenient connections on the go.

System Requirements

  • Source device with USB-C or Thunderbolt 3 port that supports USB DisplayPort Alternate Mode
  • Display device with HDMI input (or DVI input with use of HDMI-to-DVI adapter)
  • Not for use with Thunderbolt monitors

Package Includes

  • U442-DOCK40-5 USB-C Multiport Adapter
  • Owner’s manual
RoHS compliant


UPC Code037332282781
Product TypeUSB Multiport Dock; Multiport Adapter
Device CompatibilityChromebook; Computer; DVR; Laptop; Monitor/HDTV; Phone; Projector; Tablet
TechnologyHDMI; Thunderbolt; USB 3.x
Host ConnectorUSB C (MALE)
Video InputUSB C (MALE)
Video OutputHDMI (FEMALE)
Number of Monitors Supported1
Video PortsHDMI (FEMALE)
Video Ports DetailsHDCP 1.4; DisplayPort 1.4; HDCP 2.3
Resolutions Supported

x1 HDMI port supports resolutions up to 8K (7680 x 4320) @ 30 Hz

Supported Resolutions1280x720 (720p); 1920x1080 (1080p); 3840x2160 (4K); 5120x2880 (5K); 7680x4320 (8K)
Max Supported Video Resolution7680 x 4320 (8K) @ 30 Hz
Recommended Cabling

P568-XXX-8K6 8K HDMI Cables

Extended ModeYes
Extended Mode Details

Extends an HDMI video signal from a host which supports USB-C DisplayPort Alternate Mode at resolutions up to 8K/30 Hz.

Mirror ModeYes
Mirror Mode Details

Mirrors HDMI video from a host which supports USB-C DisplayPort Alternate Mode at resolutions up to 8K/30 Hz.

Max Supported Color Depth36-bit Deep Color
HDR SupportYes
3D Video SupportedYes
Chroma Sub Sampling4:2:2; 4:4:0; 4:4:4
EDID SupportYes
DisplayPort Alt ModeYes
DSC SupportYes
Data Ports(3) USB A (FEMALE)
Data Ports Details(3) USB-A - USB 3.2 Gen 2 (10 Gbps)
Input Plug TypeUSB-C (MALE)
Input Cord Length (ft.)0.66
Bus Powered  Yes
Battery Charging (5V/1.5A Port)Yes
Power Source TypeBus; USB
USB Power Delivery (PD) Charging SupportYes
USB Power Delivery (PD) Charging Specification100W; 3.0
Number of Ports5
Dock Connectors(x3) USB-A Female; (x1) USB-C Female; (x1) HDMI Female
Side A - Connector 1USB C (MALE)
Side B - Connector 1HDMI (FEMALE)
Side B - Connector 2USB C (FEMALE)
Side B - Connector 3(3) USB A (FEMALE)
Connector PlatingNickel
Number of Charging Ports4
Total Charging Amps2.4A (USB-A Hub)
Total Charging Watts100
Charging Port Type(3) USB A (FEMALE); (1) USB C (FEMALE)
Charging Ports(2) USB-A: 0.9A; (1) USB-A: 5V 1.5A (7.5W); (1) USB-C: 100W (20V 5A) Power Delivery (PD 3.0)
Charging Ports Details
  • (1) USB-C PD 3.0 charging port supports up to 100 Watts of total charging capacity, with 15 Watts dedicated to the unit itself and 85 Watts allocated for charging a connected host device
  • (1) USB-A port supports 5V/1.5A (7.5W) charging to a connected device
  • (2) USB-A ports support 900mA (0.9A) maximum downstream charging and share 1.5A total
  • All three USB-A ports share 12 Watts total charging capacity
  • All ports support short-circuit and over-current protection
Charging Ports / Amps(2) 0.9A; (1) 1.5A; (1) 5A
Compatible DevicesChromebook; Laptop; Smartphone; Tablet
Material of ConstructionTPE+PVC+ABS
Cable Jacket ColorBlack
Connector ColorBlack
Cable Jacket MaterialPVC
Cable Jacket RatingFT2
Cable Outer Diameter (OD)5.0mm
Wire Gauge (AWG)24+34
Cable Length (ft.)0.66
Cable Length (in.)7.87
Housing ColorGray
Total Number of Ports5
Shipping Dimensions (hwd / in.)0.87 x 7.87 x 3.54
Shipping Weight (lbs.)0.22
Unit Dimensions (hwd / in.)0.710 x 1.210 x 5.590
Unit Packaging TypeBox
Unit Weight (lbs.)0.201
Operating Temperature Range32° to 113°F (0° to 45°C)
Storage Temperature Range50° to 158°F (-10° to 70°C)
Operating Humidity Range10% to 85% RH, Non-Condensing
Storage Humidity Range5% to 90% RH, Non-Condensing
Power Provided to Connected Device(s)100W
Overcurrent ProtectionNo
Overvoltage ProtectionNo
USB Hub PortsYes
Number of USB Hub Ports3
USB SpecificationUSB 3.2 Gen 2 (Up to 10 Gbps)
Data Transfer Rate(3) 10 Gbps
MST Support  No
Ethernet SupportNo
UASP Support  No
Auto MDIX Support  No
Full Duplex Support  No
HDCP Specification1.4; 2.3
Driver RequiredNo
TAA Compliant OptionN
Product CertificationsEN 55032; ICES (Canada)
Product ComplianceCE (Europe); FCC Part 15 Class B (USA); REACH; RoHS3; UKCA; WEEE
Product Warranty Period (Worldwide)1-year limited warranty

Questions & Answers


Audio Video Cables

  Model Number Description
8K HDMI Cable (M/M) - 8K 60 Hz, Dynamic HDR, 4:4:4, HDCP 2.2, Black, 3 ft. P568-003-8K6 P568-003-8K6 8K HDMI Cable (M/M) - 8K 60 Hz, Dynamic HDR, 4:4:4, HDCP 2.2, Black, 3 ft.
8K HDMI Cable (M/M) - 8K 60 Hz, Dynamic HDR, 4:4:4, HDCP 2.2, Black, 6 ft. P568-006-8K6 P568-006-8K6 8K HDMI Cable (M/M) - 8K 60 Hz, Dynamic HDR, 4:4:4, HDCP 2.2, Black, 6 ft.

USB Cables

  Model Number Description
USB-C Cable (M/M) - USB 2.0, 5A (100W) Rated, 6 ft. (1.83 m) U040-006-C-5A U040-006-C-5A USB-C Cable (M/M) - USB 2.0, 5A (100W) Rated, 6 ft. (1.83 m)
USB-C Cable (M/M), USB 2.0, 5A (100W) Rated, USB-IF Certified, 13 ft. (3.96 m) U040-C13-C-5A U040-C13-C-5A USB-C Cable (M/M), USB 2.0, 5A (100W) Rated, USB-IF Certified, 13 ft. (3.96 m)

Need help with your purchase?
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