StarTech.com · PEX4S953LP

StarTech 4-port PCI Express RS232 Serial Adapter Card - PEX4S953LP

4-port RS232 PCI Express serial adapter with a Asix AX99100A controller, 16950-compatible UART and up to 921.6Kbps per port.

Quick answer: Adds 4 DB9 RS232 serial ports to a PCIe x1 or larger slot for connecting compatible business, industrial and legacy equipment.

Best forPOS terminals, card readers, printers, PIN pads, modems, automation equipment and other systems that still require native-style RS232 connectivity.

Check before orderingConfirm the target system has a free PCIe slot, the required low-profile bracket arrangement and operating-system support for the connected serial equipment.

Answers before you buy

Frequently asked questions

What does PEX4S953LP do?

Adds 4 DB9 RS232 serial ports to a PCIe x1 or larger slot for connecting compatible business, industrial and legacy equipment.

Who is this product best for?

POS terminals, card readers, printers, PIN pads, modems, automation equipment and other systems that still require native-style RS232 connectivity.

What should I check before ordering?

Confirm the target system has a free PCIe slot, the required low-profile bracket arrangement and operating-system support for the connected serial equipment.

Does it require drivers or software?

Drivers support the Windows, Windows Server and Linux versions listed in the specifications; confirm compatibility with any legacy application.

What is included in the package?

Four-port low-profile serial card, 30cm breakout cable, full-profile bracket and quick-start guide.

What is the key installation requirement?

Install the card in a PCIe x1 or larger slot. Supplemental LP4 power is required only when using selectable 5V/12V output on serial pin 9.

Is it suitable for an Australian setup?

Yes. DeviceDeal supplies the Australian-market version; always confirm the available ports, power and system compatibility for your installation.

What warranty applies?

PEX4S953LP carries a StarTech.com limited lifetime manufacturer warranty, subject to the manufacturers terms and eligibility requirements.

Planning a broader setup? Browse the DeviceDeal buying guides. View the DeviceDeal product page.

(PEX4S953LP)

Features & highlights

Why choose PEX4S953LP?

?4 RS232 portsAdds 4 DB9 serial connections through one PCI Express slot.

?Up to 921.6KbpsSupports high-speed bidirectional RS232 communication per port.

?16950-compatible UARTSupports 256-byte FIFO buffering and a ninth data bit for specialist serial applications.

?Asix AX99100A controllerDesigned for dependable serial communication in professional systems.

?Selectable powered pin 9Can provide 5V or 12V on pin 9 when configured and connected to supplemental power.

?Flexible chassis fitStandard-profile hardware is supplied with low-profile installation support.

Compatibility reminder: Confirm the target system has a free PCIe slot, the required low-profile bracket arrangement and operating-system support for the connected serial equipment.

StarTech 4-port PCI Express RS232 Serial Adapter Card - PEX4S953LP product image

Technical specifications

PEX4S953LP specifications

Exact-model specifications for compatibility checking.

Warranty Information
Warranty	Lifetime
Connectors
Host Connector	1 - PCI Express x1
Internal Power	1 - LP4 (4 pin; Large Drive Power)
External Ports	4 - DB-9 (9 pin, D-Sub)
Hardware
Ports	4
Interface	Serial
Bus Type	PCI Express
Card Type	Low Profile (standard-profile bracket included)
Port Style	Dongle (included)
Chipset ID	Asix AX99100A
UART	16950 compatible
Performance
Serial Protocol	RS-232
Maximum Baud Rate	921.6 Kbps per port
Data Bits	5, 6, 7, 8, 9
FIFO	256 Bytes
Flow Control	None, Xon/Xoff, RTS/CTS
Parity	None, Odd, Even, Space, Mark
Stop Bits	1, 1.5, 2
Powered Pin 9	Selectable 5V, 12V or no power when supplemental power is connected
Software
OS Compatibility	Windows 7/8/8.1/10/11; Windows Server 20032022; Linux 2.4.x and later LTS versions
Microsoft WHQL Certified	Yes
Environmental
Operating Temperature	-10°C to 80°C
Storage Temperature	-20°C to 100°C
Humidity	5% to 85% RH
What's in the Box
Included	1 - four-port low-profile serial card; 1 - 30cm DB44-to-DB9 breakout cable; 1 - full-profile bracket; 1 - quick-start guide

Sources: supplied product file, DeviceDeal product page and official StarTech.com specifications. Product appearance and specifications may change; confirm critical deployment requirements before ordering.

SKU	PEX4S953LP
Barcode #	65030887052
Brand	Startech
Shipping Weight	0.3700kg
Shipping Width	0.005m
Shipping Height	0.021m
Shipping Length	0.015m

Manufacturer warranty

Lifetime

This Australian-version product is supplied by DeviceDeal and is covered by the official StarTech.com limited lifetime manufacturer warranty in Australia.

Keep your DeviceDeal tax invoice as proof of purchase.
Coverage is subject to StarTech.com warranty terms, eligibility and product assessment.
Warranty service does not replace rights that may apply under Australian Consumer Law.