# STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)

PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® CompatibleThis RS232 Serial Adapter Card lets you add an RS232 DB9 serial port to your computer through a PCI Express (PCIe) slot. It enables you to interact with serial devices such as card readers, printers, PIN pads, and modems, at speeds of up-to 921.4Kbps.Maximum CompatibilityWith broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into mixed environments. The card comes pre-configured with a low-profile bracket, and includes an optional full-profile bracket, so installation is easy regardless of the case form factor.Experience Optimal TechnologyThis PCIe to serial adapter supports the following features:• Compatible with industry standard 16950 UART• Supports max baud rate of up-to 921.4Kbps• Provides 5/12V power output on Pin 9 when external power is connected• 128-byte depth FIFO per transmitter and receiver• Supports 9, 8, 7, 6, 5 data bits• Asix AX99100 chipset• PCI Express 1.1 compliantPEX1S953LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.The StarTech.com Advantage

## Details

- **Price:** 83.32 AUD
- **Vendor:** STARTECH
- **Type:** Interface Cards & Adapters
- **Tags:** Dicker, Ingram

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 83.32 AUD | In stock |

## Images

- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)
- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)
- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)
- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)
- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)
- STARTECH 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card | Windows & Linux (PEX1S953LP) (PEX1S953LP)

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> Source: [TechForGood](https://techforgood.com.au/products/startech-com-1-port-pci-express-rs232-serial-adapter-card-pcie-rs232-serial-host-controller-card-pci-1)
> Updated: 2026-08-26