ATEN USB-C Travel Dock UH3238 is a nifty little USB-C 3.2 Gen 1 dock for Mac, PC, iPad (USB-C) and Android. It provides HDMI, USB-A, USB-C 3.1 and 3.5mm combo headset outputs.
It is one of those docks that plugs directly (as in the body plugs in) to the USB-C port. For most, that is a deal-breaker because it can cover other ports or microphone and speaker, so before you buy, make sure it suits your smartphone or computing device. Or buy a 1m female-to-male USB-C 3.1 extension cable – about $10 from eBay – problem solved.
Remember, it is a travel dock that works in upstream powered or downstream unpowered mode. Ports include:
USB-C 3.2 Gen 1 5Gbps male to upstream dock with the computing device
USB-A 3.2 Gen 1 supports BC 1.2 5V/1.5A/7.5W
USB-A 3.2 Gen 1 5V/.9A/4.5W
HDMI 2.0 4K@30fps
USB-C 3.2 Gen 1 for 92W upstream charging or can act as USB-C downstream 5V/1.5A/7.5W
3.5mm 4-pole combo headset/mic port
Power output depends on ports in use
If both USB-A ports use power combined output is 5V/1.8W/9W
If both USB-A and the USB-C downstream port use power, the combined output is 5V/1.5A/7.5W
Upstream power delivery
You can use any USB-C PD 3.0 (5/9/15/20V) to 100W (The dongle itself uses 5V/1.6A/8W) to charge at 92W. This will support 100W devices.
The HDMI port offers 4K@30Hz and HDCP 2.2. Using the downstream USB-C port with ALT DP 1.4 mode can support 4K@60Hz with a compatible monitor supporting DisplayPort Stream Compression 3.1 (DSC3.1) and Display Port Hight Bitrate 3 (HBR 3) link rate – best to count on 4K@30Hz.
Tests (Surface Pro 7 USB-C 3.2 Gen 2 and Samsung S21 Ultra USB-C 3.1 Gen 1)
HDMI 2.0 4K@30Hz – pass
USB-C Alt DP 1.4 4K@60Hz with Samsung 4K USB-C Alt DP 1.4 – pass
Dual monitors – USB-C and HDMI – 2 x 1080p@60Hz – pass
Downstream voltage on USB ports – pass
Upstream power 100W – pass
Thunderbolt 3 and 4 connection – pass
May not work on Windows devices with USB-C if the processor is not Intel Core 7th Gen or later (or AMD equavalent). Requires Intel HD graphics 615 or later for dual monitor
MacBook Pro 2016 or MacBook 2015 support one monitor. Recommended to use the original or an Apple LPS certified charger
iPad Pro 3rd generation or later for one monitor. Recommended to use the Apple LPS charger
Smartphones and tablets with USB-C 3.1 support 1080p screen mirroring. Some Samsung Galaxy S devices and tablets support DeX (Desktop eXperience), and the USB-A ports support keyboard and mice
When used as a dongle without power-pass through the maximum wattage available is 7W downstream (provided the host device provides 5V/3A/15W)
Another excellent product from ATEN, although it will lose points on design – plugging into the host device usually covers essential ports.
ATEN USB-C Travel Dock UH3238
ATEN USB-C Travel Dock UH3238 is a nifty little USB-C 3.2 Gen 1 dock with 100W power pass-through for Mac, PC, iPad and Android. It provides HDMI, USB-A, USB-C and 3.5mm combo headset outputs.