ATEN UH3239 USB-C Multiport Mini Dock with 60W Power Pass-Through

Overview

The ATEN UH3239 is a compact USB-C multiport mini dock that extends a single USB-C host connection into HDMI video output, SD/SDXC card access, and 60W power pass-through — all through a 55cm captive cable. It addresses the common field-deployment constraint where a laptop or compact workstation has one USB-C port and must simultaneously drive an external display, read configuration media, and stay charged. The UH3239 handles that without a power brick shuffle or dongle stack on the desk.

Compatibility

Connects to any USB-C host with DisplayPort Alt Mode and USB Power Delivery support — typically recent-generation Windows laptops, MacBooks, and USB-C workstations used in security operations centers, IT deployment stations, and integration workbenches. The HDMI output drives displays and monitors up to 3840×2160 at 30Hz, covering 4K monitors used for VMS client workstations or configuration review. The integrated SD card reader supports SD V1.0/V1.1/V2.0/V3.01/V5.0 (up to 2GB), SDHC (up to 32GB), and SDXC (up to 2TB) — covering virtually all SD media formats used for camera firmware transfers, NVR configuration imports, and access control credential backups. Review the ATEN peripheral line for compatible USB-C docking and switching accessories. For workstation display setups, see the full KVM switch catalog for multi-source display management options. If your VMS workstation or network video recorder client PC needs SD-based firmware staging, the UH3239 covers that workflow directly.

Installation Notes

The 55cm cable length is intentional for desktop use — it keeps the dock within reach without excess slack, but plan workstation placement so the dock sits within half a meter of the USB-C port. Operating humidity is rated to 80% RH non-condensing, which covers standard indoor environments including IT rooms and security headend cabinets. Do not use in condensing environments. Power pass-through supports up to 60W — confirm the upstream USB-C charger or PoE adapter provides adequate wattage; the dock passes through available power rather than generating it. For USB-C accessories and cables to extend or complement this setup, verify USB-C Power Delivery compatibility at the charger side. Pair with a KVM or console access solution if the workstation requires multi-system switching alongside the docked peripherals.