Sunix PCIe 4-Port RS232 Com Add-on Card

4x RS232 Serial Ports: Add four DB9 ports to your PC for connecting serial devices PCIe Interface: High-speed PCI Express connection ensures reliable data throughput Versatile Compatibility: Supports modems, barcode scanners, industrial equipment & more Low Profile & Standard Brackets: Fits both standard and slim PC cases OS Support: Compatible with Windows, Linux, and more (drivers may be required)