Kramer VS-8FW 8-Port FireWire Repeater / Hub Cascading Operation - Multiple units can be cascaded to create a FireWire system with up to 63 ports Range - Doubles FireWire cable range from 4.5m (14.75') to 9m (29.5'). Multiple units can be cascaded to extend the range to up to 72m (236') Hot Swapping - Supports plug and play Transfer Rates - 100, 200 and 400Mbps ESD Protection - Incorporates Kramer's Spark-Guard Pro signal protection circuitry to help protect against EDS (electrostatic discharge) which can damage digital equipment