![4 Port Pci Express Serial Card](http://demo-d-hdistributing.myshopify.com/cdn/shop/products/DHPEX4S553B_1024x1024.jpg?v=1478913467)
4 Port Pci Express Serial Card
The PEX4S553B Serial PCI Express card lets you add four RS232 serial ports using a single PCIe expansion slot. Includes both standard and low profile installation brackets features native PCIe single chip design.