
Lantronix TN-USB3-SX-01(LC) — USB 3.0 to 1000Base-SX LC Adapter
$418.00
Ships from and sold by A5 IT
Free 2-3 Day Shipping within the United StatesArrives by Thursday, Oct 29
New, with full manufacturer warranty
Key Features
- USB 3.0 to 1000Base-SX multimode LC connection for a fiber-based Gigabit Ethernet network
- 220 m/722 ft. reach on 62.5/125 µm multimode fiber and 550 m/1804 ft. on 50/125 µm multimode fiber
- 7.0 dB link budget for the LC part number
- USB bus power with no external power supply needed
- IEEE 802.1Q VLAN tagging support
- Status LEDs for USB Speed / Activity and fiber Link / Activity
- Software support for Windows 7, 8, 8.1, 10, 11, Linux, Ubuntu 22.04, 24.04 and Macintosh 10.6 to 10.11
Lantronix TN-USB3-SX-01(LC) is a Scorpion-USB 3.0 Gigabit Ethernet fiber adapter for creating an EMI-secure data connection between a USB port on a PC, laptop, or tablet and a 1000Mbps Ethernet fiber port on a switch. This SKU is the TN-USB3 Series 1000Base-SX multimode LC version. It lists 220 m/722 ft. reach on 62.5/125 µm fiber, 550 m/1804 ft. reach on 50/125 µm fiber, and a 7.0 dB link budget. The adapter is designed for fiber-rich networking environments where a computing device needs access to a fiber-based Gigabit Ethernet network through USB 3.0. It is USB bus powered, supports IEEE 802.1Q VLAN tagging, and includes LEDs for USB Speed / Activity and fiber Link / Activity.
Ideal For
- Connecting PCs, laptops, or tablets to a 1000Mbps Ethernet fiber port on a switch
- Adding fiber-based Gigabit Ethernet access to a computing device that does not have a fiber port
- Fiber-rich networking environments where wireless transmission is not the preferred technology due to security concerns
- Sharing data-intensive files where copper lacks the bandwidth, distance, or security
Specifications
| CE | CE Mark |
| FCC | FCC Part 15, Subpart B, Class A |
| MTBF | Greater than 5,800,000 hours Telcordia SR-332 (Issue 4) |
| Series | TN-USB3 Series |
| Weight | 0.35 lbs. [0.16 kg] |
| Altitude | 0 – 10,000 ft. (with derating) |
| Humidity | 5% to 95% (non-condensing) |
| Standard | IEEE 802.3-2008 |
| Warranty | Lifetime |
| Dimensions | 2.09” [56 mm] x 12.25″ [233 mm] x 1″ [20 mm] |
| Fiber Port | 1000Base-SX multimode (LC) |
| Link Budget | 7.0 dB |
| Power Source | USB Bus |
| VLAN Tagging | IEEE 802.1Q |
| Certification | EN55032 Class A; EN55024 |
| USB Data Rate | 625 MBps (5000 mbps) |
| Host Interface | USB 3.0 (Type-A connector) |
| Max Frame Size | 1518 bytes (untagged) |
| USB Status LED | Speed / Activity Green: ON – USB 3.0 Yellow: ON – USB 2.0 Green & Yellow: OFF – USB Down |
| Fiber Data Rate | 125 MBps (1000 mbps) |
| Fiber Status LED | Speed / Activity Green – Link @ 1000Mbps, Yellow – Link @ 100Mbps, Flashing – Activity |
| Software Support | Windows 7, 8, 8.1, 10, 11, Linux, Ubuntu 22.04, 24.04 and Macintosh 10.6 to 10.11 |
| Power Consumption | 2.1 Watts (LC: Typical) |
| Storage Temperature | -20°C to +80°C |
| Operating Temperature | 0°C to 50°C |
| Fiber Distance 50 125 µM | 550 m/1804 ft |
| Fiber Distance 625 125 µM | 220 m/722 ft |
Frequently Asked Questions
Is this adapter USB bus powered?▾
Yes. The TN-USB3 Series is bus powered, with no external power supply needed.
Which fiber connector and fiber type does TN-USB3-SX-01(LC) use?▾
This SKU is the 1000Base-SX multimode LC version. The part row lists 220 m/722 ft. on 62.5/125 µm fiber and 550 m/1804 ft. on 50/125 µm fiber.
Which operating systems are listed for software support?▾
The TN-USB3 Series software support lists Windows 7, 8, 8.1, 10, 11, Linux, Ubuntu 22.04, 24.04 and Macintosh 10.6 to 10.11.
Does it support VLAN tagging?▾
Yes. The listed standards include IEEE 802.1Q, and the features state that the adapter supports IEEE 802.1Q VLAN tagging.
Related Products

Lantronix EDS1100 1 Port Secure Device SERVER, INTERNATIONAL, PSU, ROHS
Lantronix · ED1100002-01
$247.30
In StockFree 2-3 Day

Lantronix XPress-DR 2 Port Industrial Automation Device SERVER, ROHS
Lantronix · XSDR22000-01
$349.88
In StockFree 2-3 Day

Lantronix EDS2100 2 Port Secure Device SERVER, INTERNATIONAL PSU, ROHS
Lantronix · ED2100002-01
$300.46
Out of Stock

Lantronix EDS4100 four-port device server 4 Port POE, International Power SUPPLY, ROHS
Lantronix · ED41000P2-01
$493.48
In StockFree 2-3 Day

Lantronix EDS4100 four-port device server 4 Port POE, NO Power SUPPLY, ROHS
Lantronix · ED41000P0-01
$437.97
Out of Stock