# STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)

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

## Details

- **Price:** 267.86 AUD
- **Vendor:** STARTECH
- **Type:** Interface Cards & Adapters
- **Tags:** Dicker, Ingram

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 267.86 AUD | In stock |

## Images

- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)
- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)
- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)
- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)
- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)
- STARTECH 4 Port PCI Express PCIe Serial Combo Card with Breakout Cable - 2 x RS232 2 x RS422 | RS485 - Dual Profile (PEX4S232485)

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> Source: [TechForGood](https://techforgood.com.au/products/startech-com-4-port-pci-express-pcie-serial-combo-card-2-x-rs232-2-x-rs422-rs485-pex4s232485)
> Updated: 2026-09-09