STARTECH
PEX4S232485 StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485
Mfg Part Number: PEX4S232485 , Item #: 1514775
Image may not reflect the actual item.
Price: $143.39
Quantity:
In Stock: 7
Last Updated: Aug 07, 2026
No Sales Tax except these states
, PO and Wire.
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. More from the Manufacturer
Main Specification
| General Information | |
| Manufacturer | StarTech.com |
| Manufacturer Part Number | PEX4S232485 |
| Manufacturer Website Address | http://www.startech.com |
| Brand Name | StarTech.com |
| Product Name | 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 |
| Packaged Quantity | 1 Each |
| Product Type | Multiport Serial Adapter |
| Technical Information | |
| Host Interface | PCI Express x1 |
| Maximum Data Transfer Rate | 3.59 Mbit/s |
| Platform Supported | PC |
| Interfaces/Ports | |
| Ports Expandability | 4 x DB-9 RS-232/422/485 - Serial, Via Cable |
| Physical Characteristics | |
| Form Factor | Plug-in Card |
| Height | 2.7" |
| Width | 0.6" |
| Weight (Approximate) | 2.40 oz |
| Miscellaneous | |
| Package Contents |
|
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2 |
| End of Life Manual Availability | Yes |
| EU RoHS Declaration URL | https://media.startech.com/cms/pdfs/pex4s232485_rohs.pdf |
| REACH Declaration URL | https://media.startech.com/cms/pdfs/pex4s232485_rohs.pdf |
| REACH free of SVHC | Yes |
| WEEE Statement | https://media.startech.com/cms/pdfs/pex4s232485_weee.pdf |
| Warranty | |
| Limited Warranty | Lifetime |
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