StarTech.com
StarTech.com PEX4S232485 4 Port PCI Express Serial Combo Card
Enhance your computer's serial communication capabilities with the StarTech.com PEX4S232485 PCI Express Serial Combo Card. This versatile adapter installs into a single PCI-Express slot, adding two RS232 ports and two RS422/485 ports. It's designed for flexible integration, including both low profile and full profile brackets to fit various system chassis. Connection management is simplified with the included breakout cable. This reliable solution is backed by StarTech.com's lifetime warranty and dedicated technical support, ensuring long-term performance and peace of mind.
$136.99
Owner Satisfaction
4.5
/ 5
Category Rank
289
/ 1154
#289 in Computer Interface Cards & Adapters
Price vs Category Average
-76%
Below average
Host Interface Type
PCI Express
/ PCI Express
Who it's for
- Multi-Protocol Support
- High-Speed PCIe Interface
- Reliable Industrial Chipset
Who should skip it
- High Cost of Specialization
- Driver and Configuration Complexity
- Requires Available PCIe Slot
Key Specs
Host Interface Type
PCI Express
Number of Ports
4 total (2 x RS232, 2 x RS422/485)
Supported Protocols
RS-232, RS-422, RS-485 (2-wire and 4-wire)
Includes
Low profile/half-height and full profile brackets
Includes
Breakout cable
Bracket Profile Type
Full Height, Low Profile, Half Height
Card Form Factor
PCIe Full-Height, PCIe Low-Profile
RAID Support
False
Features
- Adds two RS232 and two RS422/485 ports
- Supports multiple serial modes (RS-232, RS-422, RS-485)
- Includes brackets for low profile systems
- Breakout cable simplifies connection setup
- Backed by lifetime warranty and support
What customers say
System integrators highly value this 4-port combo card for its exceptional reliability and robust performance in bridging modern PCs with legacy industrial equipment. Professionals praise the high-quality chipset, which guarantees broad compatibility across various operating systems, making it essential for mission-critical automation and data acquisition. The flexibility of combining two RS232 ports with two configurable RS485/422 ports on a single card simplifies hardware management significantly. While the initial setup demands technical knowledge, users agree the stability under continuous operation justifies the premium cost over less dependable USB solutions. This card delivers consistent, specialized serial connectivity where it matters most.
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