PCI4S550N - StarTech 4-Port PCI RS232 Serial Adapter with 16550 UART PCI4S550N - StarTech 4-Port PCI RS232 Serial Adapter with 16550 UART $139.25
JJ-P21012-S6 - SIIG 3-Port Cyber 2S1P Plus Parallel/Serial Adapter JJ-P21012-S6 - SIIG 3-Port Cyber 2S1P Plus Parallel/Serial Adapter $124.95
0C19511 - Lenovo Dual Serial Port PCI Express Adapter for ThinkServer 0C19511 - Lenovo Dual Serial Port PCI Express Adapter for ThinkServer $156.40
SC-SAE212-S2 - SIIG PCI-Express Serial Adapter SC-SAE212-S2 - SIIG PCI-Express Serial Adapter $103.50
PEX16S952LP - StarTech 16-Port Low Profile PCI Express Serial Adapter PEX16S952LP - StarTech 16-Port Low Profile PCI Express Serial Adapter $314.07
PEX2S952 - StarTech 2-Port Native PCI Express RS232 Serial Adapter Card with 16950 UART PEX2S952 - StarTech 2-Port Native PCI Express RS232 Serial Adapter Card with 16950 UART $70.97