Brainboxes Universal 3-Port RS232 PCI Card. Host interface: PCI, Output interface: Serial RS232. Data transfer rate: 0.115 Mbit/s. Width: 65 mm, Depth: 120 mm, Height: 5 mm. Certification: CE, FCC, UL, PCI 3.0. Platform: PC, Connectivity technology: Wired, Compatible operating systems: Windows 98/Me/NT/2000/XP/2003