StarTech.com PCI Express Serial Adapter Card
Best multi-port serial expansion for industrial and legacy hardware connectivity.
This card is the ultimate lifeline for legacy hardware, instantly turning a single PCIe slot into a command center for eight serial devices. It’s a specialized, no-nonsense solution for industrial or point-of-sale setups, though you’ll need to be running a Windows environment to make it work.
$191.99
at
CDW
Who it's for
- IT professionals managing multiple legacy industrial devices
- System builders integrating serial hardware into modern motherboards
- Users needing reliable, long-term hardware and driver support
Who should skip it
- General consumers looking for modern, high-speed connectivity
- Users uncomfortable opening their computer case for hardware installation
- Beginners avoiding manual driver installation and configuration
Performance breakdown
Port Density
Eight serial ports from a single PCIe slot maximizes limited space.
Data Throughput
High-speed 921.6Kbps transfer rates easily handle demanding industrial peripheral communication.
Power Versatility
Selectable 12v or 5v output on pin 9 simplifies peripheral power management.
Hardware Protection
Integrated 15kV ESD protection provides essential safety for sensitive connected equipment.
Cable Management
Included breakout cable is convenient but adds bulk to rear connections.
OS Compatibility
Strict Windows-only driver support limits deployment in Linux or Unix environments.
Key Specs
Number of Ports
8
Interface Type
RS232
Connector Type
DB9
Chipset
16C1050 UART
Data Transfer Rate
Up to 921.6Kbps per port
FIFO Buffer
256 byte
ESD Protection
15kV
Power Output on DB9 Pin 9
12v/5v/none
Maximum Power Output
3A total
Host Interface
PCI Express
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