Partner Manufacturers

CLK-4U2FM-500M Rose Fiber USB 2.0 Extender 4 Port multimode ( Fibre USB Extender )

CLK-4 Fiber EXTENDER General Front Views of transmitter and receiver plus smaller rear views of transmitter and receiver

Extend your USB 2.0 high speed and USB 1.1 low and full speed devices up to 6 miles (10km) over Single -Mode fiber cable.
Single-Mode and MultiMode models available.
Designed to support high powered USB devices
Four USB ports available
Standard USB hubs can be used to increase the number of USB devices connected to a maximum of 14 (including 3 hubs).
Supports USB printers, scanners, hard drives,audio devices, web cams, game controllers, and many more USB device types.
Easy installation

Access to your USB device is made convenient in a variety of situations. You can locate users
away from hazardous environments where the USB device is located, locate devices away from
areas vulnerable to theft, reduce noise and heat;
increase desk and floor space.
If additional USB devices are needed, you can add USB hubs to the receiver model and connect up to a total of 11 USB devices and 3
The CrystalLink USB Fiber extender supports all USB devices. It is ideal for use in industrial control areas, digital signage, connecting web
cameras, USB device printing, scanning and storage.
Supports all major operating systems including:
Windows®, Max®, and Linux®
Supports USB printers, scanners, web cameras,USB hard drives, flash drives, MP3 players and many more USB 1.1 and 2.0 devices.

The CrystalLink USB Fiber extenders are usually sold in pairs, a transmitter unit and a receiver unit. The transmitter unit connects to your computers USB port and the receiver unit connects to 4 USB 1.1
or 2.0 devices. The transmitter and receiver unit are connected together with up standard fiber opticalSingle-mode or Multi-Mode cable (depending on model). The CrystalLink USB Fiber supports USB hubs
for adding additional USB devices.
Each USB output port on the receiver can supply up to 500 ma of power to the connected USB device

Installing the CrystalLink USB Fiber extender is as simple as connecting the computer’s USB port to the transmitter unit, connecting up to 4 USB 1.1 or 2.0 devices to th
e receiver unit and connecting the local and remote units together with Single-Mode or Multi-Mode fiber cable.

Expanding CrystalLink USB Fiber
In addition to extending four USB devices, you can add up to 3 standard USB 4-port hubs to access additional USB devices. Connecting 3 USB hubs to the receiver will
increase the number of USB devices that can be connected to a maximum of 11 devices and 3 hubs.

Part Numbers
CLK-4U2FS-10KM 4 port USB 2.0 Extender Kit (Single-Mode model)

CLK-4U2FM-500M 4 port USB 2.0 Extender Kit (Multi-Mode model)

-Single-Mode and Multi-Mode models available

-Supports USB 2.0 (high-speed) and USB 1.1 (low and full speed)

-Extend USB device up to:
902 feet (275m) over 62.5 / 125m Multi-Mode fiber
1640 feet (500m) over 50 / 425μm Multi-Mode fiber
6 miles (10km) over Single-Mode fiber

-Operates with USB 2.0 high-speed host controllers and USB 1.1 host controllers.

-Standard USB hubs can be used to increase the maximum number of connected USB devices to 14 (3 USB hubs and 11 USB devices)

-Up to 500 ma of power is available at each USB port for powering high-power USB devices

-Plug-and-Play installation, no configuration or set-up needed.

-Installation consists of:
1.Connecting the receiver to your USB device(s)
2.Connect the transmitter to your computer’s USB port
3.Connect the transmitter to the receiver with fiber optic cable
4.Apply power and the installation is complete

CLK-4 Fiber EXTENDER General setup picture


Width Depth Height
Transmitter (in) 3.94 2.99 1.02
Receiver (mm) 100 76 26

Shipping Weight 2.2 lbs (1.0 Kg)

902 feet (275m) over 62.5 /125μm Multi-Mode fiber
1640 feet (500m) over 50 / 425μm Multi-Mode fiber
6 miles (10km) over 9μm Single-Mode fiber

USB Type B
Power–Optional +5VDC

4-USB Type A
Power– Required +5VDC

Receiver output 500 ma per USB output port (4)


Power-Blue LED
Link–Green LED
Host–Green LED
Activity– Amber LED

Power– Blue LED
Link–Green LED
Host–Green LED
Activity–Amber LED
Device–Green / Orange LED

Operating Temp. 32°F-122°F (0°C-50°C)
Storage Temp.-4°F-158°F (-20°C-70°C)
Humidity 20%–80% non-condensing

FCC Class B, CE Class B, IC Class B