StarTech.com PEX4S03LP 4-Port PCIe RS232 Serial Adapter Card 921.6Kbit/s – Windows/Linux
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About This Item
- PCIe 1.1 host interface with four internal serial output ports
- Asix AX99100 chipset with 256 B FIFO (First In First Out) cache
- Supports baud rates up to 921.6 Kbit/s
- Configurable data bits (5-9) and stop bits (1, 1.5, 2), plus various parity options
- Wide operating system support for Windows (including Servers) and Linux
- Compact dimensions (75 mm width, 63 mm depth, 18 mm height) and green colour
- Includes low-profile and full-profile mounting brackets for versatile installation
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StarTech.com PEX4S03LP – Expand Your Legacy Connectivity
We offer the StarTech.com PEX4S03LP 4-Port PCIe RS232 Serial Adapter Card 921.6Kbit/s – Windows/Linux for professionals needing reliable serial port expansion. This card is ideal for integrating older serial devices with modern PCs. It provides four RS232 (DB9) serial ports via a single PCI Express slot, supporting a wide range of peripherals and operating systems.
Essential Card Details
| Metric | Spec. |
|---|---|
| Host Interface | PCIe 1.1 |
| Output Interface | Serial (DB9) |
| Baud Rate | 921.6 Kbit/s |
| FIFO Buffer | 256 B per port |
| OS Support | Windows, Linux |
| Chipset | Asix AX99100 |
Seamless Integration with Existing Systems
This adapter card ensures maximum compatibility across diverse computing environments. It supports both Windows and Linux operating systems, simplifying deployment in mixed IT infrastructures. You can easily connect a variety of serial peripherals, from industrial control systems to point-of-sale devices.
High-Speed Data Transfer
Benefit from impressive data transfer rates of up to 921.6 Kbit/s per port. The integrated 256-byte FIFO buffer for both transmitter and receiver on each port helps maintain data integrity. This design ensures smooth and efficient communication with your serial devices.
Flexible Installation for Any Chassis
The PEX4S03LP comes with low-profile brackets pre-installed. We also include full-profile brackets in the package. This flexibility allows for straightforward installation into various computer case form factors. It adapts to your existing hardware setup without hassle.
Robust and Reliable Performance
Featuring the Asix AX99100 chipset, this card delivers stable and consistent performance. We know IT professionals rely on dependable hardware. This adapter card is built to meet industry standards for long-term use.
What’s in the Box
- StarTech.com 4-Port PCIe RS232 Serial Adapter Card
- Low-profile bracket (pre-installed)
- Full-profile bracket
- Serial cables
- Quick installation guide
Before You Order
- Confirm your computer has an available PCI Express (PCIe) slot.
- Confirm your operating system is Windows or Linux for driver compatibility.
- Confirm the physical space inside your chassis for the card dimensions.
Frequently Asked Questions
Q: Does this card support older serial devices?
A: Yes, it is compatible with industry-standard 16950 UART devices.
Q: Can I use this card in a small form factor PC?
A: Yes, it includes both low-profile and full-profile brackets for flexible installation.
Q: What operating systems are supported?
A: It supports a wide range of Windows and Linux operating system versions.
Q: What is the maximum data transfer rate?
A: Each port supports a maximum baud rate of up to 921.6 Kbit/s.
Our Verdict
The StarTech.com PEX4S03LP is an excellent choice for expanding serial connectivity in modern systems. It offers high performance, broad compatibility, and flexible installation. This card is ideal for IT professionals managing legacy serial devices. Warranty cover varies by product, so please contact us to confirm.
| Ports & interfaces | |
|---|---|
| Internal | Yes |
| Output interface | Serial |
| Host interface | PCIe |
| Expansion card standard | PCIe 1.1 |
| Technical details | |
| Chipset | Asix AX99100 |
| FIFO (First In, First Out) | 256 B |
| Compliance certificates | RoHS |
| Performance | |
| Stop bits | 1, 1.5, 2 |
| Data bits | 5, 6, 7, 8, 9 |
| Baud rate | 921.6 Kbit/s |
| Chipset | Asix AX99100 |
| FIFO (First In, First Out) | 256 B |
| Product colour | Green |
| Harmonized System (HS) code | 84733020 |
| Certificates | |
| Certification | CE, FCC |
| Colour | |
| Product colour | Green |
| Design | |
| Mean time between failures (MTBF) | 214358 h |
| Internal | Yes |
| Product colour | Green |
| Certification | CE, FCC |
| Features | |
| Stop bits | 1, 1.5, 2 |
| Data bits | 5, 6, 7, 8, 9 |
| Baud rate | 921.6 Kbit/s |
| Chipset | Asix AX99100 |
| FIFO (First In, First Out) | 256 B |
| Parity bit | Even, Mark, No, Odd, Space |
| Flow Control type | No, RTS/CTS, XON/XOFF |
| Harmonized System (HS) code | 84733020 |
| Operational conditions | |
| Operating temperature (T-T) | -10 - 80 °C |
| Storage temperature (T-T) | -20 - 100 °C |
| Operating relative humidity (H-H) | 5 - 85% |
| System requirements | |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64 |
| Linux operating systems supported | Yes |
| Server operating systems supported | Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016 |
| Weight & dimensions | |
| Width | 75 mm |
| Depth | 63 mm |
| Height | 18 mm |
| Weight | 264 g |
| Package width | 151 mm |
| Package depth | 216 mm |
| Package height | 54 mm |
| Package weight | 370 g |
| Packaging data | |
| Mounting brackets included | Yes |
| Package width | 151 mm |
| Package depth | 216 mm |
| Package height | 54 mm |
| Package weight | 370 g |
| Cables included | Serial |
| Quick installation guide | Yes |
| Quantity | 1 |
| Logistics data | |
| Products per master (outer) case | 16 pc(s) |
| Master (outer) case width | 344 mm |
| Master (outer) case length | 476 mm |
| Master (outer) case height | 248 mm |
| Harmonized System (HS) code | 84733020 |
| Packaging content | |
| Mounting brackets included | Yes |
| Cables included | Serial |
| Quick installation guide | Yes |
| Quantity | 1 |
| Other features | |
| Chipset | Asix AX99100 |
| Identifiers | |
| Distributor SKUs | V268737, V934945, 96118, 5687346, 10288031, 275676, CLPEX4S953LP |
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