Full specification
Interface: PCI Express x1
Serial Ports: 2x DB9 (RS232)
UART: 16950
Chipset: ASIX AX99100
Baud Rate: Up to 921.4Kbps per port
FIFO: 256-byte depth per transmitter and receiver
Data Bits: 5, 6, 7, 8, 9
Power Output: 5V/12V/none on Pin 9, up to 2A total
Form Factor: Low-profile PCIe card
Bracket: Low-profile (included) + Full-profile (included)
PCI Express Compliance: 1.1
Warranty: Lifetime
OS Support: Windows XP/Vista/7/Server 2003/2008 R2/2012/2012 R2/2016, Linux 2.4-2.6.x