Product Type | PCIe Serial Adapter Card |
Form Factor | Full-height and Low-profile (with included bracket) |
Chipset | Asix AX99100 |
UART | 16C1050 compatible |
Ports | 2 x DB9 Serial |
Max Baud Rate | 921.6 Kbps |
Power Output Per Port | 5V or 12V, 1.5A selectable |
Power Source | Bus-powered |
Bracket Profile | Full-height and low-profile brackets included |
StarTech 2-Port PCIe Serial Card RS-232/422/485 with DIP Switch and ESD Protection





Key Benefits

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AI-Powered Summaries from Online Customer Reviews
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- Offers flexible serial connectivity with per-port RS-232/422/485 DIP-switch configuration for diverse application needs
- Supports 12V/5V/RI output at 1.5A per-port, enabling both data and power delivery across legacy equipment
- TAA compliance and dual OS support ensure government readiness and broad deployment compatibility
Product Overview
2-PORT PCIE SERIAL CARD FEATURES ON-BOARD DIP SWITCHES ALLOWING EACH DB9 PORT TO OPERATE IN RS-232/RS-422/RS-485 INDEPENDENTLY; JUMPERS PROVIDE THE OPTION OF 12V/5V/RI @ 1.5A PER PORT; INCLUDES LOW-PROFILE BRACKETS; SUPPORTS WINDOWS/LINUXSpecifications
Product Overview
Physical & Environmental
Dimensions (H x W x D) | 120 mm x 60 mm x 20 mm (card only) |
Operating Temperature | 0°C to 50°C (32°F to 122°F) |
Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
Humidity (Operating) | 5% to 85% RH (non‑condensing) |
Humidity (Storage) | 5% to 95% RH (non‑condensing) |
Color | Black / Green (PCB) |
Material | Steel bracket, PCB board |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
RoHS Compliance | Yes |
CE Certified | Yes |
FCC Compliance | Yes |
REACH Compliance | Yes |
ESD Protection | 15kV (Air), 8kV (Contact) |
Advanced Security Features
Serial Line Protection | 15kV ESD per port |
Isolation | No isolation (non-isolated ports) |
Interfaces
Host Interface | PCI Express (PCIe) x1 |
Serial Port Type | RS-232/RS-422/RS-485 (software selectable) |
Number of Serial Ports | 2 |
Connector Type | DB9 Male |
Flow Control | Software (XON/XOFF), Hardware RTS/CTS, DSR/DTR |
Wireless Features
Wireless Capability |
Cloud Management & Licensing
Management Interface | |
License Required | No |
Bundled Software Utilities | Windows and Linux drivers provided |