FWB-UTPS400 is two FireWire 400 (IEEE 1394b) to one RJ45 port S400 Repeater.
FWB-UTPS400 enables 1394 signals to be transmitted and received over Cat5 or Cat6 Unshielded Twisted- Pair (UTP) cable. FWB-UTPS400 is optimized to create long-haul IEEE 1394b-2002 connections over Cat5 or Cat6 at the S400 data rate, but it can also be used at S200 and S100. FWB-UTPS400 also works for Cat5-structured wiring cable that is typically installed in a home or office.