Product Type | Serial Card |
Form Factor | Plug-in card - low profile |
Chipset | 16C1050 UART |
Ports | 2 x RS-232 |
Bracket Type | Low-profile and full-height included |
Power Requirements | Supplies 5V/12V over pin 9 |
LED Indicators | Yes – Activity LEDs per port |
Bus Type | PCI Express |
Package Contents | Serial card, low/full profile brackets, driver CD, quick-start guide |
StarTech 2-Port PCI Express RS232 Serial Card (21050-PC-SERIAL-CARD)





Key Benefits

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- Fully supports legacy RS232 devices, ensuring ongoing compatibility with older industrial or communication hardware.
- Integrated LED lights offer visual status updates on port activity, assisting with diagnostics and reducing downtime.
- Provides 5V and 12V power directly on pin 9, streamlining installation by eliminating the need for external power sources.
Product Overview
Connect serial RS232 (DB9) devices, using this PC Serial Card. Supports 16C1050 UART. LED lights to monitor activity on the PCI express DB9 card - The UART PCIe card supplies 5/12V over pin 9. Continue using legacy hardware with this RS232 PCIe cardSpecifications
Product Overview
Physical & Environmental
Product Dimensions (L x W x H) | 120 mm x 80 mm x 20 mm |
Weight | 72 g |
Operating Temperature | 0°C to 55°C (32°F to 131°F) |
Storage Temperature | -20°C to 85°C (-4°F to 185°F) |
Humidity Range | 5% to 95% RH (non-condensing) |
Color | Black |
Material | Steel (bracket), PCB board |
Compatibility & OS Support
Supported Operating Systems | Windows 11, 10, 8, 7, XP, Linux, macOS |
Plug-and-Play Installation | Yes |
Drivers Included | Yes – CD and downloadable |
Advanced Security Features
Hardware Encryption |
Interfaces
Interface Type | PCI Express x1 |
External Ports | 2 x DB-9 (RS-232) male |
Connector Type | DB-9 Male |
Data Transfer Rate | Up to 921.6 Kbps |
UART Type | 16C1050 |
FIFO | 256-byte FIFO buffer |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
RoHS Compliant | Yes |
CE Certified | Yes |
FCC Certification | Yes |
REACH Compliant | Yes |
Cloud Management & Licensing
Cloud Management |