1-lane (x1) PCI-Express with transfer rate 2.5 Gb/s full duplex channel. IEEE P1394b Revision 1.33+ Support Provisions. Simultaneous of several high-quality devices. Supports hot-swapping and plug-and-play connection of peripherals. Compliant with IEEE 1394-1995 for high quality serial bus. Complies with IEEE 1394a-2000 Standard. Compliant with PCI-Express Revision 1.0a. Compliant with IEEE 1394 OpenHCI Specifications V1.1 and V1.2. Works with various types of FireWire 800 (1394b) and 1394a devices, including portable hard drive, DV camcorder, digital camera, CD-RW/DVD-ROM drive and other audio/video devices.