StarTech.com US100A20FXSC · Network adapter

MPN / P/N

US100A20FXSC

Manufacturer designation

USB to Fiber Optic Converter - 100Mbps - USB 2.0 to Fiber Network Adapter - 100Base-FX SC Female Duplex Multimode Fiber/MMF Compatible - 2Km - Compact USB to Fiber LAN

Power Source

USB-Powered

Input Voltage

5V DC

Output Voltage

5 DC

Colour

Black

Material

Plastic

Cable length

7.7 in [19.5 cm]

Product length

6.7 in [17 cm]

Width

5.5 in [14 cm]

Height

0.8 in [20 mm]

Weight

1.9 oz [53 g]

Operating Temperature

0C ~ 60C (32 ~ 140F)

Storage Temperature

-10 ~ 70C (14 ~ 158F)

Humidity

5% ~ 90% RH

Maximum data transfer rate

100 Mbps

Max Distance

2 km (1.2 mi)

Max Transfer Distance

2 km (1.2 mi)

Fiber Type

Multi Mode

Wavelength

1310nm

Digitial Diagnostics

No; Monitoring Support

Compatible networks

100 Mbps

Promiscuous Mode

Yes

Number of Ports

1

Interface

Fiber Ethernet

Bus Type

USB 2.0

Industry Standards

IEEE802.3x 100BASE-FX; IEEE 802.1Q VLAN tagging

Chipset ID

ASIX Electronics - AX88772C

LED Indicators

1 - Power; 1 - Link/Activity

Connector 1 (Quantity)

1

Connector 1

USB-A (480Mbps, 2.5W)

Connector 2 (Quantity)

1

Connector 2

SC Duplex Fiber

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. Video conversion is directional unless the exact manufacturer specification explicitly states otherwise. USB-C video adapters require the stated video-capable host mode; display and source capabilities must match.

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