Tonysa⏳Serial Port CardsTonysa PCI-E to 2 DB9 RS232 Serial Ports + 1 DB25 Parallel LPT Port Adapter Card Converter for Desktops$34.99View
Waveshare⏳Serial Port CardsWaveshare RS485 to Ethernet Converter High-speed Low-power High-stability Upgradable (RS485 TO ETH)$67.99View
StarTech⏳Serial Port CardsStarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows, macOS, Linux (PEX2S953LP)$137.99View
StarTech⏳Serial Port CardsStarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux (PEX1S953LP)$109.99View
Zerone⏳Serial Port CardsPCI-E to RS232 PCI Express Serial Card 2 Ports Adapter Card for WINDOWS2000/xp/server 2003/xp 64-bit/Vista/7/8/Linux/Dos$39.99View
ASHATA⏳Serial Port CardsASHATA 4 Port Native PCI Express RS232 Serial Adapter Card, PCI-E to RS232 4-Port Serial Port Converter PCI Express Controller Adapter Expansion Card for windows7/8/10/LINUX$51.99View
Richer-R⏳Serial Port CardsRicher-R PCI to Serial Card, PCI-E PCI Express to Dual Serial DB9 RS232 2-Port Controller Adapter Card Support DOS,Windows 8/7 / Vista/XP / 2000 / Server 2003-2008 32/64-bit,Linux$36.99View
VBESTLIFE⏳Serial Port CardsVBESTLIFE PCI Express to SATA 3.0, 2 Port SATA 6 Gbps PCI Express SATA Controller Card Dual Port PCIE SATA III Card Adapter Boards$39.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE 2-port RS422 RS485 PCI controller card with OXFORD OXPCI952 chipset - 2KV ISOLATION$113.99View
EXSYS✓Serial Port CardsExsys 2311-2 °C Male to 1 x Serial RS-232 1.8 m USB 2.0 Cable with 9 Pin Connector LED Display Black$116.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE Serial RS232 POS PCIe controller card with 2 powered DB9 UART COM ports. Power On Serial 5V 12V, Chipset OXFORD OXPCIe952$92.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE 4 PORTS COM RS232 DB9 Serial Mini PCI Express Controller Board with EXAR XR17V354 Chipset$113.99View
Sun3drucker⏳Serial Port CardsSun3drucker PCI-E Express 16X to 16x Male to Female Riser Extender Card Ribbon Cable 20cm$25.99View
StarTech✓Serial Port CardsStarTech.com PCI Express Serial Card - 16 DB9 RS232 Ports - Low + Full Profile - Multiport Serial Adapter - PCIe Serial Card (PEX16S550LP)$877.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE 4 Port Serial RS232 PCI Express PCIe Controller Board on octopus$91.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE USB to RS422 RS485 converter with FTDI FT232 Chipset. 1.8M cable with magnetic protection$92.99View
StarTech⏳Serial Port CardsStarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card (PEX2S1050) ,Black$130.99View
IO Crest⏳Serial Port CardsIO Crest 2 Port Parallel 1 Por Serial PCIe x1 Card, PCI Express to DB25 and DB9 with Low Bracket, Support SPP/ PS2/ EPP/ECP Modes RS232/ RS485/ RS422 and Centronics Interface$133.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE 2 port RS422 RS485 PCI Express PCIe controller card with EXAR XR17V352 Chipset. Windows XP/Vista/Seven/8/10/11, Windows Server 2003/2008/2012, Linux$154.99View
KALEA-INFORMATIQUE⏳Serial Port CardsKALEA-INFORMATIQUE 2 COM RS232 - DB9 Mini PCI Express serial controller card with EXAR XR17V352 Chipset$86.99View