StarTech.com 5G2A1SGBB-USB-C-HUB · USB-C hub

MPN / P/N

5G2A1SGBB-USB-C-HUB

Manufacturer designation

2-Port USB-C Hub with Ethernet and RS-232, Attached USB-C to USB-A Dongle, 100W PD Pass-Through, 2x USB-A 5Gbps, Gigabit Ethernet, RS232 Serial (FTDI)

Power Source

Bus Powered and Host USB-C Power Adapter

Power Delivery

100W

Power Consumption

15W

Colour

Space Gray

Cable length

23.6 in [60 cm]

Product length

2.2 in [55.0 mm]

Width

5.0 in [12.8 cm]

Height

0.7 in [19.0 mm]

Weight

3.7 oz [105.0 g]

Operating Temperature

0C to 50C (32F to 122F)

Storage Temperature

-20C to 70C (-4F to 158F)

Humidity

0% to 95% RH

Total Available Power

15 W; Output

Maximum data transfer rate

USB: 5 Gbps (USB 3.2 Gen 1); Ethernet: 2 Gbps (Ethernet; Full-Duplex); Serial: 115.2 Kbps

Data Bits

7, 8

FIFO

256 Bytes

Flow Control

Full duplex flow control

Parity

Odd/Even/Mark/Space/None

Stop Bits

1, 2

Max Baud Rate

115.2 Kbps

Serial Protocol

RS-232

Type and Rate

USB 5Gbps

UASP Support

Yes

Compatible networks

10/100/1000 Mbps

Auto MDIX

Yes

Full Duplex Support

Yes

PXE

Yes

Jumbo Frame Support

9K max.

Promiscuous Mode

No

Wake-On-LAN (WOL)

Yes

USB-C Device Port(s)

No

USB-C Host Connection

Yes

Fast-Charge Port(s)

No

Number of Ports

2

Interface

USB 3.2 Gen 1 (5Gbps); RJ45 (Gigabit Ethernet); Serial

Bus Type

USB 5Gbps

Industry Standards

IEEE 802.3u, IEEE 802.3ab; IEEE 802.3az Energy-Efficient Ethernet, IEEE 802.3x Flow; Control, 802.1q VLAN Tagging, 802.1p Layer 2 Priority Encoding; USB 3.2 Gen 1 (5Gbps)

Chipset ID

VIA - VL817-Q7; VIA - VL103-Q4; ASIX - AX88179A; FTDI - FT232RL

LED Indicators

1 - USB Enumeration LED (Blue) - Illuminates to Indicate the; RS-232 Functionality of the USB Hub is in an Operational State; 1 - RS-232 Transmitter LED (Yellow) - Illuminates to Indicate; Outbound RS-232 Transmissions; 1 - RS-232 Receiver LED (Green) - Illuminates to Indicate; Inbound RS-232 Transmissions

Form Factor

Compact

Host Connector 1 (Quantity)

1

Host Connector 1

USB-C (5Gbps, 4.5W)

Host Connector 2 (Quantity)

1

Host Connector 2

USB-A (5Gbps, 4.5W)

Connector 1 (Quantity)

2

Connector 1

USB-A (5Gbps, 4.5W)

Connector 2 (Quantity)

1

Connector 2

DB-9 Serial

Connector 3 (Quantity)

1

Connector 3

RJ-45

Connector 4 (Quantity)

1

Connector 4

USB-C (100W PD Only)

Selection limits

Match the exact connector standards, host features, supported OS/driver requirements and power-supply version. Manufacturer maximum throughput, resolution/refresh and Power Delivery ratings are conditional limits, not a universal result. USB-C connector shape alone does not guarantee DisplayPort Alt Mode, USB4/Thunderbolt bandwidth or USB Power Delivery. DisplayLink models may need drivers; macOS MST behaviour can differ. Check the exact product notes and display configuration.

Specification source: StarTech.com ↗
Checked against documentation: 16.10.2026