Surpasses any on the market in quality and performance, 100% Guaranteed!! This hub is the best of the best! The NitroAV Professional Grade 8-port 1394b (FireWire 800) hub/repeater, featuring Texas Instruments chips allows you to easily attach 7 devices, simultaneously, at up to 800 Megabits per Second(Mbps), for blazing fast transfer rates, and elimination of daisy chaining, plugging and unplugging devices. Simply attach a FireWire cable from your computer to the hub, and attach your devices. This FireWire 800 hub and repeater will conveniently draw power directly from a powered 1394 port, automatically, while also powering bus power capable devices that do not have their own power source. Its DC power input jack can also be used with the always included, 110/220V AC power adapter, when the 1394/FireWire connection does not provide DC power. Even if the FireWire bus is already powered, the DC power input jack of the hub/repeater can also be used simultaneously, to supplement power draw from devices. The FireWire bus voltage will adapt automatically when needed. But it's not just used in the studio, or on the desk or rack- It is also designed for use in custom implementations and has screw hole mounts in its robust metal chassis. This design also provides additional power source means, with a 4-pin 5v/12v connector.