Serial port cards for PC

Suggestions for Serial port cards for PC
The Delock 2-Port Manual Serial Switch Box is a versatile tool that allows for easy switching between RS-232, RS-422, and RS-485 communication protocols. This wired switch box features two ports and can be mounted on a desktop or wall.
LogiLink PC0033 is a PCI Express card that adds two serial ports and one parallel port to your computer. The serial ports have a 9-pin connector, while the parallel port follows IEEE 1284 standards.
StarTech 4 Port PCI Express PCIe Serial Combo Card - Adds 2 RS232 & 2 RS422/RS485 ports to a computer's PCI Express slot for communication with devices or instruments requiring serial connectivity.
Boost your PC's connectivity with the STARTECH.COM 2-Port PCI Express Serial Card. Low profile design, 16550 UART for reliable data transmission
StarTech.com's 4-port PCI Express serial adapter card provides a reliable and efficient solution for connecting multiple devices to your computer via RS232 interface.
StarTech 4 Port RS232 PCI Express Serial Card w/ Breakout Cable - connect up to 4 devices via RS-232 interface, low profile design for easy installation.
StarTech.com 8-port PCIe RS-232 serial card with low-profile design and compatibility with Windows, Linux, and macOS operating systems.
StarTech.com 2-port RS232 serial adapter card with 16950 UART for PCI Express expansion slots, compatible with Windows, macOS, and Linux operating systems.
Data transfer rate up to 2.5 Mbps - Compliant with PCI Express base specification 1.1 - Compliant with PCI power management 1.2 - Supports Windows 7, Vista, XP
Conceptronic PCI Express Card with 2-Port Serial Interface, perfect for expanding computer connectivity.
The Epson UB-S01 is an interface card that connects TM series printers to a computer via RS-232 serial communication. Featuring the C32C823361 model number, this Epson product enables seamless data transfer between devices for smooth printing operations.
4 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 4x DB9 ports w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer - OPTIONAL CONFIGURABLE POWER: PCIe multiport serial card provides 1

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