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StarTech.com PEX8S1050LP 8-Port PCI Express RS232 Serial Adapter Card - PCIe x1 to DB9 - 16C1050 UART - 921.6Kbps per Port - Low Profile - 15kV ESD
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Product Features
Technical Overview
This multiport serial adapter leverages PCI Express x1 host interface technology, ensuring full compatibility with PCI Express Base Specifications Revision 1.0a/1.1. Each of the eight ports operates independently with 256-byte FIFO buffers, supporting standard RS232 signaling with configurable data bits (5/6/7/8), parity modes (none/even/odd), and stop bits.
The card's optional configurable power delivery provides 12V/5V or no power on pin 9 with up to 3A total shared current, accommodating various serial device requirements. Environmental compliance includes EU RoHS certification and adherence to REACH and WEEE directives, while the lifetime limited warranty underscores long-term reliability.
Relevant factors for this section include Host Interface, Maximum Data Transfer Rate, Number of Serial Ports, Ports Expandability. 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 card bridges legacy serial device requirements with modern PCIe system architecture, offering enhanced connectivity without sacrificing performance or reliability. The inclusion of both low-profile and full-profile brackets ensures compatibility across diverse chassis configurations, from compact point-of-sale systems to standard server racks.
Enhanced Connectivity
Eight independent RS232 serial ports with 921.6Kbps throughput per port enable simultaneous communication with multiple legacy devices, reducing the need for multiple single-port adapters.
- Bi-directional data transfer
- 256-byte FIFO buffers reduce CPU overhead
- Configurable power options on pin 9
Robust Protection
15kV ESD protection on each port safeguards connected equipment from electrostatic discharge events common in industrial environments, while the card's compliance with environmental standards ensures responsible manufacturing.
- 15kV ESD protection per port
- EU RoHS certified
- REACH and WEEE compliant
Deployment / Use Cases
This PCIe serial adapter card serves critical connectivity functions across industries where legacy serial interfaces remain operational necessities. Its eight-port configuration and reliable performance make it suitable for environments requiring multiple serial connections without compromising system stability or data integrity.
Common deployment scenarios include point-of-sale terminals requiring connection to receipt printers, barcode scanners, and cash drawers; industrial automation systems interfacing with PLCs, sensors, and control panels; scientific and medical equipment such as oscilloscopes, analyzers, and diagnostic devices; and data acquisition systems monitoring environmental sensors or manufacturing equipment.
Physical Profile
The low-profile plug-in card measures 2.40" (60.96 mm) in height and 0.90" (22.86 mm) in width, with an approximate weight of 4.09 oz (116 g). This compact form factor fits standard low-profile PCIe slots while including full-profile brackets for traditional chassis installations. The card's dimensions and dual-bracket design provide installation flexibility across desktop and server environments without requiring additional hardware.
- Width
- 0.90" (22.86 mm)
- Height
- 2.40" (60.96 mm)
- Weight
- 4.09 oz (116 g)
What's in the Box
The package includes all necessary components for immediate deployment of the 8-port serial adapter card in various system configurations.
Highlights
- 8 independent RS232 serial ports via DB9 breakout cables
- PCI Express x1 host interface with full PCIe specification compliance
- Systembase SB16C1058PCI chipset with 16C1050 UART compatibility
- 921.6Kbps maximum data transfer rate per port
- 256-byte FIFO buffers reduce CPU overhead
- 15kV ESD protection on each serial port
- Low-profile design with included full-profile brackets
- Windows and Windows Server support (XP/2003 and up)
- TAA compliant with lifetime limited warranty
- Configurable power options on pin 9 (12V/5V/none)
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | PEX8S1050LP |
| Brand Name | StarTech.com |
| Product Name | 8-Port PCI Express Serial Card with 16C1050 UART |
| Packaged Quantity | 1 Each |
| Product Type | Multiport Serial Adapter |
| Technical Information | |
| Host Interface | PCI Express x1 |
| Maximum Data Transfer Rate | 921.40 kbit/s |
| Interfaces/Ports | |
| Number of Serial Ports | 8 |
| Ports Expandability | 8 x DB-9 - Serial, Via Cable |
| Physical Characteristics | |
| Form Factor | Plug-in Card |
| Height | 2.40" (60.96 mm) |
| Width | 0.90" (22.86 mm) |
| Weight (Approximate) | 4.09 oz (116 g) |
| Miscellaneous | |
| Package Contents | 8-Port PCI Express Serial Card with 16C1050 UART 2 x DB44 to 4-Port SB9 Breakout Cables 2 x Full Profile Brackets 1 x Quick-Start Guide |
| TAA Compliant | Yes |
| Country of Origin | Taiwan |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | Lifetime |
User Manual
FAQ
What operating systems does this serial adapter card support?
This adapter card supports Windows operating systems including Windows XP and later versions, as well as Windows Server 2003 and later server editions. The card does not support macOS, Linux, or other operating systems, making it specifically designed for Windows-based environments where legacy serial connectivity is required.
How many serial ports does this PCIe card provide?
The StarTech.com PEX8S1050LP provides eight independent RS232 serial ports through two DB44 to 4-port DB9 breakout cables included in the package. Each port operates independently with full duplex communication, supporting data transfer rates up to 921.6Kbps per port for simultaneous connectivity with multiple serial devices.
What is the maximum data transfer rate per port?
Each of the eight serial ports supports a maximum data transfer rate of 921.6 kilobits per second (921.6Kbps). This rate applies to bi-directional RS232 communication, with 256-byte FIFO buffers on each port helping to maintain consistent throughput while reducing CPU overhead during data transmission and reception operations.
Does this card include both low-profile and full-profile brackets?
Yes, the card comes with two low-profile brackets pre-installed and includes two additional full-profile brackets in the package. This dual-bracket configuration allows installation in both low-profile chassis commonly found in compact desktops and servers, as well as standard full-profile systems, providing flexibility across different hardware environments.
What type of ESD protection does this serial adapter offer?
Each serial port on the PEX8S1050LP includes 15kV electrostatic discharge (ESD) protection. This level of protection helps safeguard both the adapter card and connected serial devices from damage caused by electrostatic discharge events, which are particularly common in industrial, laboratory, and commercial environments where this card is typically deployed.
Is this serial adapter card TAA compliant?
Yes, the StarTech.com PEX8S1050LP is TAA (Trade Agreements Act) compliant, meaning it meets the requirements for U.S. government procurement and other contracts requiring TAA-compliant products. The card is manufactured in Taiwan and complies with relevant trade agreement specifications, making it suitable for government and institutional purchasing where TAA compliance is mandatory.
| Qty | Price | Available |
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