StarTech.com 2-Port PCI Express Serial Interface Card, Dual Port PCIe to RS232 (DB9) Serial Card, 16C1050 UART, Low/Full Profile Brackets, COM Retention, For Windows/Linux. Host interface: PCIe, Output interface: Serial, Expansion card form factor: Full-height / Low-profile. Product colour: Yellow, LED indicators: Activity. Chipset: ASIX - AX99100, ASIX - ZT3243LFEY, Baud rate: 921.6 Kbit/s, FIFO (First In, First Out): 256 B. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Server operating systems supported: Windows Server 2016, Windows Server 2019. Width: 66 mm, Depth: 67 mm, Height: 18 mm