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Serial Port

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LinksTek 2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2) from $25.99	OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… $12.99 from $10.92
StarTech.com 16in (40cm) 9 Pin Serial Male to 10 Pin Motherboard Header Slot Plate - motherboard Serial Port Adapter (PLATE9M16), Gray from $5.73	StarTech.com 2-Port PCI RS232 Serial Adapter Card - PCI Serial Port Expansion Controller Card - PCI to Dual Serial DB9 Card - Standard (Installed) & Low Profile Brackets - Windows/Linux (PCI2S5502) $26.55 from $24.25
StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Card - Windows & Linux (PEX1S553LP) from $43.77	StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16550 UART - Expansion Card - Windows & Linux (PEX2S553) $42.13 from $41.99
USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above from $22.88	YIOVVOM DB9 Breakout Connector to Wiring Terminal RS232 D-SUB Male Serial Adapters Port Breakout Board Solder-Free Module with case(Female Serial Adapter) $8.99 from $8.09
DTech 15ft COM Port Serial Cable Male to Female RS232 Extension 9 Pin Straight Through Cord from $13.98	DTECH 10 Feet USB 2.0 to RS232 DB9 Serial Port Adapter Cable with FTDI Chipset Supports Windows 11 10 8 7 and Mac Linux from $19.88