DP Firewire 800 PCIe (NN-FW0012-S1) Installs in standard height or low profile chassis with included brackets and provides 3 FireWire 800 ports (1394b 9-pin) for multiple device connections. Supports IEEE P1394b and is backward compatible with 1394a-2000 and 1394-1995 standards. Fully compliant with PCI Express Base Specification Revision 1.0a, FCC Class B (DoC) & CE regulatory approved and RoHS compliant. Operating Systems Supported: Windows 7 (32-/64-bit) / Vista (32-/64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/64-bit) / 2000 and Mac OS X v10.5 or later. Supports hot-swapping which allows you to connect/detach devices without first turning your system off. Onboard power connector to provide more reliable power source for attached devices.