StarTech PEX4S953LP — 4-Port Low-Profile PCIe RS232 Serial Adapter (DB9)

Add four RS232 (DB9) serial ports to a PC using a single PCI Express (PCIe) slot with the StarTech PEX4S953LP. This card replaces the PEX4S952LP and is intended for connecting serial devices such as printers and modems. Built around the Asix AX99100 chipset, it delivers a maximum baud rate of 921.6Kbps and features a 256-byte FIFO cache for reliable data transfer. The low-profile design simplifies installation in space-constrained systems, and the card offers driver support for both Windows and Linux.