The DVI-3000 HD KVM (keyboard, video, mouse) extender sends a DVI display, USB keyboard/mouse, and RS-232C up to 6.25 miles (10km) from your DVI source. It's designed using duplex SC single mode fibers to support digital video plus USB 1.1 and RS-232C peripherals for ultra long range extensions.

How it works
The DVI-3000HD sender unit sits next to your computer. The cables supplied with the DVI-3000HD connects your DVI source, USB, and RS-232C to the send unit. The DVI•3000HD receiver unit sits next to your DVI display - up to 6.25 miles (10km) away. The display and USB plug into the back of the DVI•3000HD receiver unit. Duplex SC single mode fiber cables connect the DVI•3000HD-S and the DVI•3000HD-R units to each other.
DVI, HDCP & HDMI Defined
Features:

Extension lengths up to 6.25 miles (10km) can be achieved
Extends any DVI compliant display
Extends USB 1.1 compliant devices
Extends RS-232C devices
Eliminates computer noise where you work
Uses duplex SC single mode fiber cables
Supports VESA Standard resolutions up to 1280x1024 at 24 bit color 60Hz
Supports DDWG standard for DVI compliant monitors
Video is transmitted digitally for zero signal loss
Specifications:

Video Amplifier Bandwidth: 1.20 Gbps
Input Video Signal: 1.2 volts p-p
Input DDC Signal: 5 volts p-p (TTL)
Single Link Range: 1280x1024
DVI Connector: DVI-D (19 pin) female
USB Input: USB type "B" connector
USB Output: two USB type "A" connectors
Link Connector: SC
Power Supply: 12V DC
Power Consumption per unit: 15 watts (max)
Dimensions: 8.4"W x 1.75"H x 4.4"D
Shipping Weight: 7 lbs.