Quatech SSP-100 1 Port DB-9 RS-232 Multiport Serial Adapter - Newegg.com
4-port USB to Serial RS232 Converter
StarTech.com 16 Port PCI Express Serial Card - High-Speed PCIe Serial Card - PEX16S550LP - Serial Adapters - CDW.com
PCI-E to 8 Port RS232 Serial Adapter Multiport Serial Controller Expansion Card | eBay
Amazon.com: StarTech.com PCI Express Serial Card - 16 DB9 RS232 Ports - Low + Full Profile - Multiport Serial Adapter - PCIe Serial Card (PEX16S550LP) : Electronics
EQUINOX Multiport Serial Adapter Panel with Cable | eBay
30128-8 Comtrol RocketPort EXPRESS Octacable DB9 Multiport Serial Adapter PCI Express x1 8 x DB-9 Male RS-232/422/485 Serial Via Cable Plug-in Card DB
99022-2 Comtrol RocketPort Plus Quadcable Multiport Serial Adapter PCI 4 x DB-9 Male RS-
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PROVANTAGE: Multiport Serial Adapters
30129-5 Comtrol RocketPort EXPRESS Octacable DB25 Multiport Serial Adapter PCI Express x1 8 x DB-25 Male RS-232/422/485 Serial Via Cable Plug-in Card
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8 Port PCI Express RS232 Serial Adapter Card PCIe RS232 Serial Card 16550 UART Multiport Serial DB9 Controller Expansion card - AliExpress
UC-279-001 Brainboxes 8 Port RS-232 Universal Multiport Serial Adapter Universal PCI 8 x DB-9 Male RS-232 Serial Via Cable Plug-in Card
StarTech.com 8-Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Card, 16C1050 UART, Multiport Serial DB9 Controller/Expansion Card, 15kV ESD Protection, Windows & Linux | www.publicsector.shidirect.com
Systembase Multi-2/USB to RS-422/485 2-Port DB9 Serial Converter – Envistia Mall
Amazon.com: Moxa CP-168U V2 8 Serial RS232 PCI Multi-Port Serial Card 62Pin to 8 x 9Pin Adapter Data Extension Cable 1M,Black,1M : Electronics
StarTech.com 2-Port PCI RS232 Serial Adapter Card - Dual Serial DB9 Expansion Card -Low/Full Profile - PCI2S5502 - Serial Adapters - CDW.com
USB-A to Serial Adapter Cable - RS232, DB9, 5-ft. | Eaton
Amazon.com: Lava Computer Quattro-PCI/LP 4 Port Multiport Serial Adapter : Electronics
Amazon.com: Digi International - Digi Neo 4 Port Multiport Serial Adapter - Pci Express - 4 X Rs-232 Serial Via Cable - Plug-In Card "Product Category: I/O & Storage Controllers/Multiport Serial Adapters" : Electronics
1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
FTDI USB to Serial Adapter Cable w/ COM - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
95850-5 RocketPort PCI Octacable Multiport Serial Adapter - Price, Specs
97591-5 Comtrol RocketPort 550 Octacable DB25 Multiport Serial Adapter 8 x DB-25 RS-232