1 ft USB to RS232 Serial DB9 Adapter Cable with COM Retention – USB to DB9 – USB to Serial Port Adapter

1 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

16-Port USB-to-Serial Adapter Hub – USB to RS232 Serial Port Adapter with Daisy Chain – Rackmount – RS232 Multiplexer – Serial Converter with FTDI chipset and COM Port Retention

2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART – PCIe RS232 – PCI-E Serial Card

2-Port PCI Express Serial Card with 16C1050 UART – RS232 – PCIe serial card with Dual Channel 16C1050 UART – PCIe RS232 Serial Card – 2 Port PCIe RS232 Serial Adapter Card

3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter – PCI Express 1394a – PCIe FireWire 400 Card

4 Port RS232 PCI Express Serial Card w/ Breakout Cable

4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

4 Port USB to DB9 RS232 Serial Adapter Hub Industrial DINRail and Wall Mountable – USB to RS 232 Serial Adapter 4-Port – USB to Serial Converter

4-PORT SERIAL PCIE CARD QUAD-PORT PCI EXPRESS TO RS232/RS422/RS485 DB9 SERIAL CARD STANDARD/LOW-PROFILE BRACKETS 16C1050 UART ESD PROTECTION WINDOWS/LINUX (PS74ADF-SERIAL-CARD)

4-Port USB-A PCIe Card USB 3.2 5Gbps

8 Port USB to DB9 RS232 Serial Adapter Hub Industrial DINRail and Wall Mountable – USB to RS 232 Serial Adapter 8-Port – USB to Serial Converter