StarTech.com 2S232422485-PC-CARD 2-Port Serial PCIe Card - Dual-Port RS232/RS422/RS485 - 16C1050 UART - ESD Protection - Windows/Linux - TAA-Compliant
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Product Features
Technical Overview
This dual-port serial card utilizes a PCI Express 2.0 x1 host interface for modern system compatibility. The 16C1050 UART architecture supports advanced features including 256-byte FIFO buffers, COM port retention, and configurable parity modes (Odd/Even/Mark/Space/None) with data bits ranging from 5 to 9.
Power configuration is handled through on-board jumpers, allowing each port to be set for 12V (1.5A), 5V (1.5A), or no power (RI) operation via pin 9 with auxiliary SATA power connectivity. The card maintains backward compatibility with 16C450 and 16C550 UART standards while delivering maximum baud rates of 921.6Kbps per channel.
Relevant factors for this section include Host Interface, Platform Supported, UART Type, Number of Serial Ports (External). When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This serial adapter stands out with its flexible configuration options and robust construction. On-board DIP switches allow each port to operate in different serial modes simultaneously, enabling mixed RS-232, RS-422, and RS-485 device connections within the same system.
Configurable Power Delivery
Individual jumper settings per port provide precise power control for connected devices, supporting 12V, 5V, or no-power configurations with auxiliary SATA power connectivity.
- 1.5A per port at 12V
- 1.5A per port at 5V
- RI (no power) option via pin 9
Universal Compatibility
Includes both standard and low-profile brackets for installation in any desktop or server chassis, from full-tower systems to compact form factor designs.
- Pre-installed standard bracket
- Two included low-profile brackets
- Screw-locking DB9 cable compatibility
Deployment / Use Cases
This serial PCIe card serves critical connectivity needs in environments where legacy serial devices remain essential to operations. Its industrial-grade construction and flexible configuration make it suitable for demanding applications across multiple sectors.
Common deployment scenarios include factory automation systems where PLCs and control equipment require RS-422 or RS-485 connections, retail environments with legacy point-of-sale terminals, and laboratory settings connecting scientific sensors and oscilloscopes. The card also finds use in medical equipment interfaces, industrial scanners, and building automation systems where reliable serial communication is paramount.
Industrial Automation
Connect programmable logic controllers (PLCs), motor controllers, and sensor arrays using RS-422/485 protocols for factory floor automation and process control systems.
Commercial & Retail
Interface with legacy point-of-sale terminals, receipt printers, cash drawers, and customer display units in retail environments requiring RS-232 connectivity.
Physical Profile
The black plug-in card measures 4 inches wide by 4.10 inches deep with a low-profile height of just 0.60 inches (15.24 mm), making it suitable for installation in standard and compact chassis. The lightweight design at 2.01 ounces (57 g) minimizes stress on the PCI Express slot while maintaining structural integrity. The card's compact footprint and included mounting options ensure compatibility with virtually any desktop or server enclosure.
- Width
- 4" (101.60 mm)
- Depth
- 4.10" (104.14 mm)
- Height
- 0.60" (15.24 mm)
- Weight
- 2.01 oz (57 g)
What's in the Box
The package includes all necessary components for immediate installation and operation:
Highlights
- Dual-port PCI Express serial card with independent RS-232/RS-422/RS-485 operation per port
- Asix AX99100 chipset with 16C1050 UART architecture for reliable serial communication
- Configurable power modes (12V/5V/RI) via jumpers with auxiliary SATA power connectivity
- Includes both standard and low-profile brackets for universal chassis compatibility
- ESD protection and LED status indicators for each serial port
- Maximum baud rate of 921.6Kbps per port with 256-byte FIFO buffers
- TAA-compliant for government and educational procurement requirements
- RoHS and WEEE compliant for environmental responsibility
- 2-year limited warranty from StarTech.com
- Compatible with Windows and Linux operating systems
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | 2S232422485-PC-CARD |
| Brand Name | StarTech.com |
| Product Name | 2-Port Serial Card |
| Packaged Quantity | 1 |
| Product Type | Serial Adapter |
| Technical Information | |
| Host Interface | PCI Express 2.0 x1 |
| Platform Supported | PC,Linux |
| UART Type | 16C450,16C550,16C650,16C750,16C950 |
| Interfaces/Ports | |
| Number of Serial Ports (External) | 2 |
| Physical Characteristics | |
| Product Color | Black |
| Form Factor | Plug-in Card |
| Height | 0.60" (15.24 mm) |
| Width | 4" (101.60 mm) |
| Depth | 4.10" (104.14 mm) |
| Weight (Approximate) | 2.01 oz (57 g) |
| Miscellaneous | |
| Package Contents | 2-Port Serial Card 2 x Low-Profile Bracket 1 x Ribbon Cable 1 x Quick-Start Guide |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS),Waste Electrical and Electronic Equipment Directive (WEEE) |
| TAA Compliant | Yes |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What serial protocols does this PCIe card support?
The card supports RS-232, RS-422, and RS-485 serial protocols. Each of the two DB9 ports can be independently configured via on-board DIP switches to operate in any of these modes, allowing you to connect different types of serial devices simultaneously to the same adapter card.
Is this serial card compatible with small form factor computers?
Yes, the card includes both a pre-installed standard bracket and two additional low-profile brackets in the package. This allows installation in full-size desktop towers, rackmount servers, and compact small form factor systems. The card itself has a low-profile height of just 0.60 inches (15.24 mm) to fit in space-constrained chassis.
What power options are available for connected serial devices?
Each port offers configurable power delivery through jumper settings. Options include 12V at 1.5A per port, 5V at 1.5A per port, or no power (RI) operation via pin 9. The card requires auxiliary SATA power connectivity for the 12V and 5V configurations, providing stable power delivery for connected serial devices.
What operating systems are supported by this serial adapter?
The card is compatible with Windows and Linux operating systems. It utilizes standard serial port drivers available in both operating environments, making it suitable for a wide range of desktop and server applications without requiring specialized driver software.
What is the maximum data transfer rate of this serial card?
Each port supports a maximum baud rate of 921.6Kbps. The card features 256-byte FIFO buffers to handle high-speed data transmission efficiently, along with configurable parity modes (Odd/Even/Mark/Space/None) and data bit settings (5/6/7/8/9) for optimal communication with various serial devices.
What does TAA compliance mean for this product?
TAA (Trade Agreements Act) compliance indicates that this serial card meets the sourcing and manufacturing requirements for U.S. government procurement. This makes the product eligible for purchase by federal agencies, educational institutions, and other organizations that require TAA-compliant products for their technology acquisitions.
| Qty | Price | Available |
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