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 lifetime warranty and free lifetime technical support.
The advantages include:
| Expansion card form factor | 2 slots | 
| Data ports | RS-232 (1x), RS-422 (1x) | 
| Expansion slot | PCI Express x1 (Gen 3) (1x) | 
| Item number | 10166628 | 
| Manufacturer | StarTech | 
| Category | Controller cards | 
| Manufacturer no. | PEX4S232485 | 
| Release date | 3.12.2013 | 
| External links | 
| Expansion card form factor | 2 slots | 
| Data ports | RS-232 (1x), RS-422 (1x) | 
| Expansion slot | PCI Express x1 (Gen 3) (1x) | 
| Country of origin | China | 
| CO₂-Emission | |
| Climate contribution | 
| Weight | 67.40 g | 
| Width | 125 mm | 
| Length | 70 mm | 
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