4 Ports USB 2.0/1.1 hub Over Fiber Extender to Max 250 Meters (820 FT) SM or MM Fiber, w/SFP Module


Regular price $359.00



  • 4 ports USB 2.0 extend to 1 port over Fiber, or 1 port USB 2.0 splitted to 4 Ports USB 2.0
  • Max extension distance 250 Meters (SM or MM fiber).  BY-USB-388SF-5 can reach 5 Kilometers.
  • 2 fibers or 1 fiber bi-directional transmission, pure hardware design, no driver needed, compatible with all operation systems, support plug and play
  • Auto recognition of High-speed(25Mbps~480Mbps)、Full-speed(500Kbps~12Mbps)、Low-speed(10Kbps~1.5Mbps)USB device; Support USB1.1 and USB 2.0 devices, cameras, printers, U disk, scanners, audio devices, touch screens, game controllers, mouse and keyboard, FTDI RS232 Converter, FPGA Programmer, USB video capture device, Orientalmotor Controller etc.
  • Be compatible with all Operation systems like Windows, Mac OS, LINUX, UNIX etc.


BY-USB-388 includes a transmitter and a receiver, which can extend USB 2.0 device to a remote location over 1 or 2 fiber cable, max distance 250 Meters (SM or MM fiber cable). it can also split 1 Channel USB 2.0 signal over fiber to 4 USB 2.0 ports in remote display.

BY-USB-388 can be widely used in military command and control system, police command and control system, traffic management system, energy and electricity supply industry, government office, medical system, commercial presentation, multimedia and public utilities etc

Optical Connector: 1 x LC, 2 x LC
Wave length: 1310nm/1550nm
Support Fiber types: 50/125μm(MMF), 62.5/125μm(MMF), 9/125μm(SMF)
Physical Size (L× W ×H): 104mm x104mm x28mm
Case: Aluminum
Color: Black
N.W.: 0.75Kg
Power Voltage: 5~12V DC
Transmitter power consumption: <18W
Receiver power consumption: <3.5W
Environment Working temperature: -20℃-70℃
Storage temperature: -40-85℃
Humidity: 0-95% (non-condensing)

USB interface(Type A): 
Receiver: 1 port, connect to PC
Transmitter: 4 ports, connect to USB 2.0 device 

Package contains:

  • 1. 1 x transmitter (client side) with SFP optical module.
  • 2. 1 x receiver (host side) with SFP optical module.
  • 3. 1 x Power supply adapters DC 5~12V with US/EU/UK/AU plug for the transmitter.
  • 4. 1 x USB 2.0 cable, the receiver powered by the local PC via USB cable. 
  • 5. 1 x Manual.


About shipment:
Once order received, we will worldwide deliver by DHL Express for about 1 week delivery.

Or shop on Amazon with worldwide Shipment (Free & Expedited)

BY-USB-388SF (250 Meters)           BY-USB-388SF-5 (5 Km over 1 Single-mode Fiber)

BY-USB-388DF(old BY-USB-331) (250  Meters)

or Directly Contact us at sales@transwan.com.cn for offline transaction.