| 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 |