10 bestSerial Port Cardsof December 2025

UGREEN USB Serial Cable USB to RS232 DB9 9 pin Converter Cable for Connecting Cisco Routers and Switches, Celestron Telescope Nexstar hand Controller, Extron Crestron Products with PL2303 Chipset (1m)

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)

StarTech.com PCI Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel LPT Port (DB25) - PCI Combo Adapter Card - PCI Expansion Card Controller - PCI to Printer Card (PCI2S1P2)

DriverGenius USB 2.0 to RS232 (DB9) Serial Converter Cable with 9 x LEDs - Compatible with Windows 11 & MacOS 14, USB232A-E-A

CableDeconn USB to RS232 Adapter with Prolific PL2303 Chipset USB2.0 Male to RS232 Female DB9 Serial Cable 2m 6ft for Windows XP,Windows Vista,7,8,10,Mac OS 10.6 Above Linux

StarTech.com PEX2S553 2 Port Native PCIe RS232 Serial Adapter Card with 16550 UART , Green

DTech USB to RS232 DB9 Male Serial Port Adapter Cable 3m with FTDI Chipset Supports Windows 1110 8 7 and Mac Linux

StarTech.com 6ft (1.8m) 1-Port USB to Serial RS232 Adapter, FTDI DB9 Serial DCE Adapter Cable, Null Modem, USB 2.0 - TAA

StarTech.com 2 Port PCI Express SATA 6 Gbps eSATA Controller Card - Dual Port PCIe SATA III Card - 2 Int/2 Ext - SATA III 6Gbps (PEXESAT322I)