3-Port USB-C Hub with SD Card Reader - 10Gbps 3x USB-A
Product ID: HB31C3ASDMB
Expand the connectivity of your USB-C laptop with this bus-powered 3-Port USB-C hub. It plugs into your
laptop’s USB Type-C™ or Thunderbolt® 3 port, adding three USB-A ports and an SD card reader,
so you can quickly connect more peripherals and devices.
SD & microSD Card Reader
The hub provides direct access to your SD memory cards or microSD cards as an additional medium for
data storage and data transfer. Adapter required for microSD cards.
www.startech.com
1 800 265 1844
Convenient Portability and Easy Setup
This compact, lightweight USB-Type-C hub is a convenient and portable addition to your laptop
accessories. The USB-C cable is built-in, and hub is bus-powered, so it draws its power directly from your
computer’s USB-C port, with no external power required. That means fewer cables to carry with you when
you travel. The hub can draw up to 15 Watts of power from the connected host and operating multiple
bus powered devices at one time with the total available power dependent on the connected host.
The extended length attached cable of 9.8” (25 cm) provides more flexibility for longer reach connection
requirements and plug and play installation.
Connect Three USB-A Peripherals
With support for USB-A peripherals, this hub is backwards compatible supporting both legacy and new
USB devices. You can connect flash drives, video capture devices and external hard drives, with fast data
transfer speeds of up to 10Gbps. This USB Type-C hub enhances your productivity, giving you the
connections, you need while you work.
HB31C3ASDMB is backed by a StarTech.com 2-year warranty and free lifetime technical support.
www.startech.com
1 800 265 1844
Certifications, Reports
and Compatibility
Applications
• Ideal for mobile workers, for use in the office and at home
• Compact size works well in small or shared workspaces such as hot
desks
Features
• Adds three USB-A ports and 1 SD/microSD card reader to your Mac,
Windows, Linux or other USB-C laptop
• USB Type-C hub supports USB 3.1 Gen 2 data transfer rates up to
10Gbps
• Compact, portable design with an extended attached host cable of
9.8" (25 cm)
• USB Hub is bus-powered with no external power required
• Plug-and-play installation with no drivers required
www.startech.com
1 800 265 1844
Warranty 2 Years
Hardware Bus Type USB 3.1 Gen 2
Chipset ID Realtek - RTS5420
Realtek - RTS5329
Fast-Charge Port(s) No
Industry Standards USB 3.1 Gen 2
Backward 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) No
USB-C Host Connection Yes
Performance Maximum Data Transfer Rate 10 Gbps
Memory Media Type SD/MMC (Secure Digital/Multimedia Card)
SDHC (Secure Digital High Capacity)
SDXC (Secure Digital eXtended Capacity)
microSD (Micro Secure Digital) (adapter required)
microSDHC (Micro Secure Digital High Capacity) (adapter
required)
microSDXC (Micro Secure Digital eXtended Capacity)
(adapter required)
SD Card Reader Supports SD 4.0 and UHS-II (Ultra High Speed) for high
speed file transfers, with bus speed up to 312 Mbps
Type and Rate USB 3.2 Gen 2 - 10 Gbit/s
UASP Support Yes
Connector(s) Connector Type(s) 1 - USB 3.1 USB Type C (10 pin, Gen 2, 10 Gbps) Plug
3 - USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps) Receptacle
1 - SD Slot Receptacle
Indicators LED Indicators 1 - Link and Activity LED
Power Power Source Bus Powered
Environmental Humidity 0% to 95% (non-condensing) at 25℃
Operating Temperature 0 to 50℃
Storage Temperature -20 to 70℃
www.startech.com
1 800 265 1844
Physical
Characteristics
Cable Length 9.8 in [250 mm]
Color Black & Space Gray
Enclosure Type Aluminum and Plastic
Form Factor Compact
Product Height 1.5 in [3.8 cm]
Product Length 8.1 in [207 mm]
Product Width 5.7 in [144 mm]
Weight of Product 6.9 oz [196 g]
Packaging
Information
Package Height 1.5 in [38 mm]
Package Length 8.1 in [20.7 cm]
Package Width 5.7 in [14.4 cm]
Shipping (Package) Weight 0.4 lb [0.2 kg]
What's in the Box Included in Package 1 - USB-C Hub
Product appearance and specifications are subject to change without notice.
www.startech.com
1 800 265 1844
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