STARTECH.COM PEX4S953
Multiport Serial Adapter - PCI Express 1.1 - 4 x DB-9 RS-232 - Serial, Via
Key facts
- Part number
- PEX4S953
- Brand
- STARTECH.COM
- Category
- Adapters
- Price
- AUD 256.29≈ USD 179 RRP
- Availability
- On request — ask for a quote
The STARTECH.COM PEX4S953 is an adapter listed on tprice.co. RRP AUD 256.29≈ USD 179 (Oct 2026). Request a quote for volume pricing, or sell us your used adapters.
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, as if they were native serial ports. 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 multiport PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with a full-sized bracket, and includes an optional low-profile bracket, so installation is easy regardless of the case form factor. This expansion card is a direct replacement for PEX4S952.
Experience Optimal Technology
This PCIe to serial adapter supports the following features:
- Industry standard 16950 UART compatible
- 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
- Base 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 Full Profile Serial Card
- Platform Supported
- PC
Linux
- UART Type
- 16950
Price history
- Latest
- AUD 256.29≈ USD 179
- Oct 2026
- Lowest recorded
- AUD 256.29≈ USD 179
- Highest recorded
- AUD 256.29≈ USD 179
- Recorded
- 2026
- 1 price point
AUD 256.29 rrp, recorded
Why buy from Prology
- Tested before dispatchEvery item is checked by our technicians before it ships.
- Warranty includedParts are covered by a Prology warranty – ask us for the terms.
- Fast shippingDispatched from our Australian and US locations.
- Real people, quick repliesQuotes and answers within 1 business day.
Request a quote for PEX4S953
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