EXSYS LowProfile 4S Serial RS-232 PCI card w/ 16C950, 32-Bit. Host interface: PCI, Output interface: PCI 32-Bit & PCI-X 64-Bit. Data transfer rate: 0.921 Mbit/s. Width: 120 mm, Depth: 63 mm, Weight: 300 g. Certification: WHQL. Operating temperature range (T-T): 0 - 55 °C, Operating relative humidity range: 5 - 95 %