Add 2 FireWire-800 and 1 FireWire-400 to your desktop computer through a PCI slot. The PCI1394B_3 3-Port PCI FireWire Adapter Card turns a PCI slot into 2 FireWire 800 (IEEE 1394b) ports and 1 FireWire 400 (IEEE 1394a) port - a cost-effective solution that lets you connect FireWire 800 devices, as well as older FireWire 400 devices to your desktop computer.A versatile FireWire solution, the adapter card works in both 5v and 3.3v PCI slots and in 64-bit and 32-bit operating environments, making it easy to create a high-speed laptop digital media center, or connect demanding FireWire peripheral devices such as portable hard drives, DV camcorders, digital cameras and CD-RW/DVD-RW drives.This high quality adapter card is designed to provide reliable FireWire 800 and FireWire 400 connections, delivering 800 Mbps and 400 Mbps data transfer rates respectively (a 64-bit PCI slot is required to achieve 800 Mbps data transfer rates).The PCI1394B_3 is backed by a StarTech.com lifetime warranty and free lifetime technical support.