PrologyParts Index

STARTECH.COM PEX4S953LP

Multiport Serial Adapter - PCI Express 1.1 x1 - 4 x DB-9 RS-232 - Serial, Via

MPNPEX4S953LPSTARTECH.COMAdaptersUpdated

Key facts

Part number
PEX4S953LP
Brand
STARTECH.COM
Category
Adapters
Price
AUD 256.29≈ USD 177 Reference price (RRP)
Availability
On request — ask for a quote

Overview

This PCI Express RS232 serial adapter card lets you add four RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot. The 4 port PCIe serial card enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.6Kbps.

Maximum Compatibility

With broad OS support, including for Windows and Linux, this PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with low-profile brackets and includes optional full-profile brackets, so installation is easy regardless of the case form factor. This card is a direct replacement for PEX4S952LP.

Experience Optimal Technology

  • This PCIe to serial adapter supports the following features:
  • Compatible with industry-standard 16950 UART
  • Supports max baud rate of up-to 921.6Kbps
  • Provides 5/12V power output on Pin 9 when external power is connected
  • 256-byte depth FIFO cache per transmitter and receiver
  • Supports 9, 8, 7, 6, 5 data bits (one per port)
  • Asix AX99100 chipset

PCI Express 1.1 compliant

The Choice of IT Pros Since 1985

Specifications

General

Ports Expandability
4 x DB-9 RS-232 - Serial, Via Cable
Product Type
Multiport Serial Adapter

Manufacturer Website Address

Product Name
4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - Low Profile
Platform Supported
Linux

PC

UART Type
16950

Reference price history

Recorded reference and list prices over time. Not Prology selling prices.

Latest
AUD 256.29≈ USD 177
Oct 2026
Lowest recorded
AUD 256.29≈ USD 177
Highest recorded
AUD 256.29≈ USD 177
Recorded
2026
1 price point

AUD 256.29 rrp, recorded

Buy or sell STARTECH.COM PEX4S953LP

Buying STARTECH.COM adapters

Looking to buy the STARTECH.COM PEX4S953LP or a compatible adapter? Prology supplies new, refurbished and used STARTECH.COM adapters in Australia and the United States. Send the part number and quantity for a firm price.

Selling STARTECH.COM adapters

Have a spare or decommissioned PEX4S953LP? Prology buys used and surplus STARTECH.COM adapters — single units or whole lots — and replies with an offer within 1 business day. Sell your PEX4S953LP.

What is the STARTECH.COM PEX4S953LP?
The STARTECH.COM PEX4S953LP is a STARTECH.COM adapter – Multiport Serial Adapter - PCI Express 1.1 x1 - 4 x DB-9 RS-232 - Serial, Via Cable.
How much does the STARTECH.COM PEX4S953LP cost?
The reference price on record is AUD 256.29 (Oct 2026). It is a reference figure, not a selling price — ask Prology for a firm quote.
Where can I buy the STARTECH.COM PEX4S953LP?
It is not listed on the Prology store yet. Prology sources STARTECH.COM adapters on request — request a quote and we reply with a firm price and lead time within 1 business day.
Can I sell a used STARTECH.COM PEX4S953LP?
Yes. Prology buys used and surplus STARTECH.COM adapters, including the PEX4S953LP. Get an offer — sell outright or trade in against your next order.

Request a quote for PEX4S953LP

Tell us the quantity and condition you need. Prology replies with a firm price and lead time within 1 business day.

Replies within 1 business day. Your details are used only to answer this request — privacy.

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