Looking at these ICRON USB extenders:\
The 1GB LAN version sells on Amazon for $970 under the ICRON branding:
http://www.amazon.com/gp/product/B00U6K5LZS/ref=s9_hps_bw_g421_i7
From ICRON OEM page - where to buy - a list for the US - each gives details on the design and features - and a range of models:
http://www.icron.com/where-to-buy/
B&B Electronics+1 800 346 3119
Connectronics+1 (319) 366 4971
L-com Connectivity Products+1 800 343 1455
IndustrialComponent.com+1 877 446 8947
KVM Switches Online+1 (303) 604 0237
Rochester Imaging Technology Corporation+1 (585) 672 5504
KVMSwitchTech+1 (234) 380 5708
Aegis Electronic Group+1 888 687 6877
B&B Electronics has a normal 2 USB port nonLan Extender for $369 and the 4port for $329.
http://www.bb-elec.com/Products/USB-Connectivity/USB-Extenders/Icron-USB-Extenders.aspx
The LAN version looks to be $900 but uses fiber for the USB
http://www.bb-elec.com/Products/Datasheets/USB-Ranger-2224-datasheet.pdf
USB Ranger® 2224 Multimode Fiber Optic USB 2.0 Extender Ranger2224 extends USB 2.0 beyond the desktop up to 500m over multimode fiber optic cabling using ExtremeUSB® technology. Ranger 2224 Features • Powered by ExtremeUSB® . Long reach USB 2.0 enabled by Icron’s LionsGate™ USB 2.0 Extension ASIC. • Extends USB 2.0 high-speed and USB 1.1 (low-speed, full speed) devices up to 500m over fiber optics. • Supports all USB device types: Control, Interrupt, Bulk and Isochronous at up to 480Mbps. • Operates with USB 2.0 high-speed host controllers and USB 1.1 classic hosts. • True plug and play, ready to operate right out of the box. No new driver installation required. • Supports all major operating systems including Windows®, Mac OS®, and Linux®. • Integrated hub provides four remote USB 2.0 ports. Number of devices can be increased using additional USB hubs. • AC power adapter at remote unit provides standard 500mA to each USB port. • Power adapter at local unit is not required for normal operation. • Ideal for a wide variety of USB devices, from printers, scanners, hard drives, and audio devices, to touch screens, web cams, and game controller