StarTech 4-Port PCIe RS232 Serial Adapter PEX4S553 – Native, 16550 UART, Low-Profile

Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot<br/>The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports using a single PCI Express expansion slot.<br/>Based on a native single-chip design this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe) while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.<br/>The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets allowing the card to be installed into almost any PC case regardless of form factor.<br/>Backed by a StarTech.com Lifetime warranty and free lifetime technical support.<br/>The StarTech.com Advantage<br/>- Native single-chip single lane PCI Express chipset delivers true PCIe performance up to 48% more efficient than bridge chip designs<br/>- Standard and low profile/half-height brackets incl