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StarTech 3 Port USB C 3.1 Gen 2 Hub with Ethernet Adapter
SKU# AC39255, Model# HB31C2A1CGS

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SKU # AC39255 | Model # HB31C2A1CGS

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3-port USB-C hub (2xUSB-A/1xUSB-C) w/ USB 3.1/3.2 Gen 2 10Gbps and USB-A supporting BC 1.2; Thunderbolt 3 Compatible - Desktop USB-C hub w/ Gigabit Ethernet (GbE) RJ45 port supports WoL/V-LAN tagging/9K jumbo frames - Powered USB C Hub w/ 24W power adapter enables 1 USB-A charge port to provide 1.5A in data sync mode or 2.4A in charging mode - Windows/macOS/Linux/iPadOS/Android w/auto driver install - 3.3' USB Type-C cable - Mount to desk/wall/monitor w/ SSPMSUDWM/SSPMSVESA (sold separately)

Manufacturer Warranty: 2 Years Limited Warranty
Manufacturer Contact Info: http://www.StarTech.com.au,

· Gigabit Network Access
· Easy Setup & Installation
· Connect USB-C & USB-A Peripherals


Expand the connectivity of your USB-C laptop with this new generation USB-C 3.1 Gen 2 hub offering 10Gbps supporting greater bus bandwidth to connected devices and faster data transfer speeds. This self-powered 3-Port USB-C hub plugs into the USB Type-C™ or Thunderbolt™ 3 port on your device, adding one LAN port, one USB-C port, and two USB-A ports, so you can quickly connect more USB devices.

Gigabit Network Access

For faster and more consistent network connections, the USB 3.1 Gen 2 hub's integrated Gigabit Ethernet port provides wired network access that is fully compatible with IEEE 802.3/u/ab standards. The GbE port also supports Wake-on-LAN (WoL), so you can remotely wake your computer over your network.

Easy Setup & Installation

This compact, lightweight USB-Type-C hub is a convenient and compact addition to your laptop setup. The hub is self-powered and includes a universal power adapter to provide better support of USB devices, such as external storage, that may draw more power.

The USB-C host cable is detached and with an extended length of 3.3' (1 m), it provides more flexibility for longer reach connection requirements and plug and play installation.

For added flexibility and security, the mini hub features mounting holes to work with StarTech.com dock mounts such as SSPMSVESA or SSPMSUDWM.

Connect USB-C & USB-A Peripherals

With ports for both USB-C and USB-A peripherals, this hub is backwards compatible supporting both legacy and new USB devices. It features one always-on USB-A fast charge port which supports two modes of operation:

  1. Data transfer and charging when the laptop is connected and on
  2. Dedicated or hostless charging which provides a higher charging current, when the host is off, on standby, or disconnected

You can connect video capture devices, portable flash drives, and external hard drives, with fast data transfer speeds of up to 10 Gbps. This 3 port USB Type-C hub enhances your productivity, giving you the connections you need while you work or travel.

The IT Pro's Choice Since 1985

StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales.

HB31C2A1CGS is backed by a StarTech.com 2-year warranty and free lifetime technical support.

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Connector Type(s) RJ-45 Receptacle
  USB 3.1 USB Type C (10 pin, Gen 2, 10 Gbps) Receptacle
  USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps) Receptacle
Humidity 0% to 95% (non-condensing) at 25°C
Operating Temperature 0 to 50°C
Storage Temperature -20 to 70°C
Bus Type USB 3.1 Gen 2
Chipset ID Realtek - RTL5428
Realtek - RTL8153B
Industry Standards USB 3.2 Gen 2 - Backwards compatible with USB 3.0, 2.0, and 1.1
Interface USB 3.1 Gen 2
Ports 3
USB Pass-Through Yes
USB-C Device Port(s) Yes
USB-C Host Connection Yes
LED Indicators Green - Power and Link Indicator
Packaging Information
Package Height 5.1 cm [2 in]
Package Length 21 cm [8.3 in]
Package Width 15 cm [5.9 in]
Shipping (Package) Weight 0.5 kg [1 lb]
Auto MDIX Yes
Compatible Networks 10/100/1000 Mbps
Full Duplex Support Yes
Maximum Data Transfer Rate 10 Gbps
Port Multiplier Yes
Supported Charging Modes Charging Downstream Port (CDP)
  Dedicated Charging Port (DCP)
Supported Charging Outputs Apple 1A
  Apple 2.4A
  BC 1.2 (1.5A)
Total Available Power Output (In Watts) 24W
Type and Rate USB 3.1 Gen 2 - 10 Gbit/s
UASP Support Yes
Physical Characteristics
Cable Length 1 m [3.3 ft]
Color Black & Space Gray
Form Factor Desktop
Material Aluminum and Plastic
Product Height 2.5 cm [1 in]
Product Length 10 cm [3.9 in]
Product Width 6 cm [2.4 in]
Weight of Product 87 g [3.1 oz]
Center Tip Polarity Positive
Input Current 0.8A
Input Voltage 110V-240V AC
Output Current 2A
Output Voltage 12V DC
Plug Type M
Power Consumption (In Watts) 24W
Power Source AC Adapter Included
Description CDW 75 - 1st Line StarTech.com 3 Port USB C 3.1 Gen 2 Hub w/Ethernet -2x USB-A & USB-C 10Gbps
OS Compatibility Windows® 10 (32/64 bit)
Windows® 8.1 (32/64bit)
Windows® 7 (32/64bit)
Windows® Server 2008 R2
Windows® Server 2012(32/64bit)
Windows® Server 2016
Windows® Server 2019
Mac OS 10.10-10.15
Linux Kernel 4.x LTS and up
Ubuntu 14.x LTS - 19.x LTS
iPadOS 13.1 and up Chrome OS 61.x and up
Android OS 8.x and up
What's in the Box
Included in Package Power Adapter Clips (NA/JP, UK, EU, ANZ)
  Universal Power Adapter
  USB-C Host Cable (1 m)
  USB-C Hub


SKU # AC39255 | Model # HB31C2A1CGS

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