This high speed hub means that you can connect two Fire Wire peripherals to your computer at extended distances of up to 4.5 m. It features 3 bilingual IEEE1394b ports which can support either Fire Wire 800 & 400 devices by using the appropriate connection cables (see below for more information). Connects to a Fire Wire 800 or 400 port on your PC or Mac Supports speeds of up to 800 Mbps. when connected between a dedicated Fire Wire 800 port on your computer & a Fire Wire 800 device Bus-powered or self-powered using the included power supply. Allows devices to be hot-plugged & hot-swapped Can be daisy chained with additional hubs to connect up to 63 devices Built-in active repeater circuitry allows Fire Wire connection distances to be extended by up to 4.5 m. Supplied with a 1 m. Fire Wire 800 9 Pin Beta cable. Compatible with all Fire Wire equipped PCs & Macs Chipset: Texas Instruments TSB81BA3D. Dimensions: 100 x 60 x 15 mm. (Wx Dx H).