The USB-Ex4 extenders represent a significant milestone in the USB market. Powered by patented ExtremeUSB technology, USB-442 and USB-444 extend USB 2.0 peripheral devices up4\ to 10km over fibre optics at up to 480 Mb/s.

The USB-Ex2  is a four port, Class A device which extents host computer and peripheral connections up to 500m/1640ft over multimode optical fibre.

The USB-Ex4 is a four port, Class A device which extends host computer and peripheral connections up to 10km over singlemode optical fibre.

USB products are composed of two separate units: the Local Extender (LEX) and the Remote Extender (REX). Conventional USB cables are used to connect the LEX unit to the host computer and to connect one or more remote USB devices to the REX unit. The USB-Ex2 and USB-Ex4 extenders require power at both the LEX and REX units.