LSI 64-bit PCI-X Ultra320 SCSI Dual-Channel Host Bus Adapter - LSI21320-R Kit. Host interface: PCI-X. Data transfer rate: 640 Mbit/s. Certification: CE, VCCI, Canada, C-Tick, FCC class B, UL 94VO. Operating temperature range (T-T): 0 - 55 °C. Connectivity technology: Wired, Dimensions (WxDxH): 167.6 x 88.9 mm, Compatible operating systems: - Microsoft Windows NT4.0, 2000 & Server 2003