Owner’s Manual
USB-C™ Dual 4K Display
Docking Station
Dual DisplayPort and HDMI Ports, GbE,
USB-A and 60W PD 2.0 Charging
Model: U442-DOCK21-B
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WARRANTY REGISTRATION
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1
Product Features
• Supports DisplayPort resolutions up to 5K (5120 x 2880)
@ 60 Hz when two DP cables are connected to one display
simultaneously, or 4K (4096 x 2160) @ 60 Hz when one DP
cable is connected to a display
• Supports HDMI resolutions up to 4K (4096 x 2160) @ 60 Hz*
• Dedicated BC 1.2-compliant USB-A port provides up to 5V
1.5A of fast charging power to mobile devices and 2.4A to
Apple devices
• USB-C PD 2.0 charging port provides up to 85W of power to
the connected device
• Ethernet port supports true 10/100/1000 Mbps network
speeds
• USB 3.0 Type-A ports support data transfer rates up to
5 Gbps and are ideal for connecting devices such as a
keyboard, mouse, printer, flash drive or hard drive
• Thunderbolt™ compatible
* Depending on the display used, TVs connected to the HDMI ports will
only support maximum resolutions of 3840 x 2160 @ 30 Hz
2
Package Includes
• U442-DOCK21-B
• USB 3.1 Gen 2 C-to-C Cable with C-to-A Adapter – 1 m
• External Power Supply (Input: 100-240V) with NEMA 5-15P
Input Plug
• Owner’s Manual
Optional Accessories
• P569-Series High-Speed HDMI Cables
• N201-Series Cat6 Gigabit Snagless Patch Cables
• M100-Series USB-A to Lightning (M/M) Cables
• P580-Series DisplayPort Cables with Latches
• U322-Series USB 3.0 A to B Cables
System Requirements
• Windows or MacOS Operating System
3
Product Overview
Front:
A B C
Back:
H
I J K L
Item Description
A
Power On/Off Button
B
Power LED - Illuminates blue when powered
C
USB Connection LED - Illuminates green when USB is
connected
D
USB-C Port
E
USB 3.0 Type-A Port - BC 1.2 Compliant
F
Headphone/Speakers Jack
G
Microphone Jack
H
DC Power Jack
I
USB-C Port
J
RJ45 Ethernet Port
K
DisplayPort and HDMI Ports
L
USB 3.0 Type-A Ports
D
E F G
4