StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485. Host interface: PCIe, Output interface: Serial, Serial interface type: RS-232/422/485. Chipset: SystemBase SB16C1052PCI, FIFO (First In, First Out): 256 B. Windows operating systems supported: Windows 2000, Windows 2000 Professional, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7.... Width: 125 mm, Depth: 70 mm, Height: 20 mm. Package width: 146 mm, Package depth: 210 mm, Package height: 41 mm

Add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot

The PEX4S232485 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 lets you add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot.

This PCI express serial card is a single card solution that is compatible with nearly any serial communication protocol, supporting RS-232, RS-422, RS-485 2-wire or RS-485 4-wire operating modes.

A flexible solution for adding serial ports to full-sized, or small form factor systems, the 4-port serial card includes both low and full profile brackets while the included breakout cable helps to avoid cluttered connections.

Backed by a StarTech.com lifetime warranty and free lifetime technical support.

The StarTech.com Advantage

- This single PCI Express combo card is compatible with any serial device protocol (RS232, RS422, and RS485), allowing for communication with multiple devices over mixed protocols
- Includes both low profile/half-height and full profile brackets to ensure fitment into a broad range of system form factors
- The included breakout cable saves expense as an all-in-one solution, and allows the addition of multiple serial ports through a single PCI Express slot