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StarTech.com PEX4S953 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux

PB Tech price
PB Tech price
NZD $ 265 .49
$ 265 .49
$265.49  +GST
$265.49

StarTech.com PEX4S953 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux

  • Brand: StarTech.com
  • MPN: PEX4S953
  • Part #: NETSTT4828626
  • UPC: 065030888257
PB Tech price
NZD $ 265 .49 $ 265 .49
In stock at NZ Logistics Centre
Delivery: Order now and it ships on 18 Sep
Estimated Delivery Times
7 - 10 working days for international destinations

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$265.49  +GST
$265.49
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  • Brand: StarTech.com
  • MPN: PEX4S953
  • Part #: NETSTT4828626
  • UPC: 065030888257
Returns & Warranty Bulk Quote Print Page

Features

4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux

CI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible

4 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 4x DB9 ports w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer; Upgraded version of our popular Serial card PEX4S952

OPTIONAL CONFIGURABLE POWER: PCIe multiport serial card provides 12v, 5v, or none through pin 9 w/up to 2A total; Each of the 4 ports are individually configurable; DB44 to 4x DB9 breakout cable incl

STANDARD PROFILE & LOW PROFILE BRACKET: PCI Express RS232 serial adapter card has standard bracket pre-installed & 1x low profile bracket incl for versatile install; Supports Windows XP and up & Linux

VERSATILE APPLICATIONS: For standard profile desktop/servers with uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope

 

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

 

Applications

- Connect to automated self-service kiosks or ATM machines
- Connect in retail POS applications
- Install in home or office workstations
- Connect serial printers and other legacy devices to modern computers

Specifications

Connector(s)

1 - Connector Type(s)

PCI Express x1

1 - Internal Ports

LP4 (4 pin; Large Drive Power)

4 - External Ports

DB-9 (9 pin, D-Sub)

Environmental

Operating Temperature

-10°C to 80°C (14°F to 176°F)

Storage Temperature

-20°C to 100°C (-4°F to 212°F)

Humidity

5~85% RH

Hardware

Ports

4

Interface

Serial

Bus Type

PCI Express

Card Type

Low Profile (SP bracket incl.)

Port Style

Integrated on Card

Chipset ID

Asix AX99100

Packaging Information

Package Height

2.0 in [50.0 mm]

Package Length

8.3 in [21.0 cm]

Shipping (Package) Weight

13.1 oz [371.0 g]

Package Width

5.9 in [15.0 cm]

Performance

Serial Protocol

RS-232

Max Baud Rate

921.6 Kbps

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

MTBF

214,358 hours

Physical Characteristics

Product Height

0.6 in [15.0 mm]

Product Length

3.0 in [75.0 mm]

Weight of Product

1.8 oz [50.0 g]

Product Width

2.5 in [63.0 mm]

Material

Steel

Cable Length

11.8 in [30 cm]

Software

OS Compatibility

Windows® 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 2.6.x LTS Versions only

Microsoft WHQL Certified

Yes

Special Notes / Requirements

Note

Selectable power output on pin 9 of the serial port

What's in the Box

1 - Included in Package

4 Port PCI Express Serial Card
Full Profile Bracket (Installed)
Low Profile Bracket
12 in [30 cm] DB44 to DB9 Break-out Cable
Quick Start Guide

Manufacturer Part No:
PEX4S953
Brand:
StarTech.com
Product Type:
-
UPC
065030888257
Product Family:
-
Shipping Weight:
1.01 kg
PB Part No:
NETSTT4828626
Product Model:
PEX4S953
Warranty: 12 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

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Delivery & Pick-up

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

Delivery Estimates

The delivery time-frame (in days) for each product we sell is detailed on the individual product page just to the right of the main product image. From when you place your order, in-stock products typically arrive within 7-10 working days for all countries that we ship to.

Overseas Shipments

If you are located in New Zealand, you can order directly from our New Zealand site www.pbtech.co.nz. If you are located in Australia you can order directly from our Australian website www.pbtech.com/au

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.

Please note, items purchased on finance cannot be exchanged for a gift card.

 

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you need to fill out our request a return form.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To return a product to PB Tech, please complete our request a return form.

Or view our returns policy for more information.

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StarTech.com PEX4S953 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux

  • Brand: StarTech.com
  • MPN: PEX4S953
  • Part #: NETSTT4828626
  • UPC:065030888257
PB Tech price NZD $265.49

Date Created: 22:46, 10-09-2025
Product URL: https://www.pbtech.com/pacific/product/NETSTT4828626/StarTechcom-PEX4S953-4-port-PCI-Express-RS232-Seri

Features

4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux

CI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible

4 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 4x DB9 ports w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer; Upgraded version of our popular Serial card PEX4S952

OPTIONAL CONFIGURABLE POWER: PCIe multiport serial card provides 12v, 5v, or none through pin 9 w/up to 2A total; Each of the 4 ports are individually configurable; DB44 to 4x DB9 breakout cable incl

STANDARD PROFILE & LOW PROFILE BRACKET: PCI Express RS232 serial adapter card has standard bracket pre-installed & 1x low profile bracket incl for versatile install; Supports Windows XP and up & Linux

VERSATILE APPLICATIONS: For standard profile desktop/servers with uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope

 

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

 

Applications

- Connect to automated self-service kiosks or ATM machines
- Connect in retail POS applications
- Install in home or office workstations
- Connect serial printers and other legacy devices to modern computers

Specifications

Connector(s)

1 - Connector Type(s)

PCI Express x1

1 - Internal Ports

LP4 (4 pin; Large Drive Power)

4 - External Ports

DB-9 (9 pin, D-Sub)

Environmental

Operating Temperature

-10°C to 80°C (14°F to 176°F)

Storage Temperature

-20°C to 100°C (-4°F to 212°F)

Humidity

5~85% RH

Hardware

Ports

4

Interface

Serial

Bus Type

PCI Express

Card Type

Low Profile (SP bracket incl.)

Port Style

Integrated on Card

Chipset ID

Asix AX99100

Packaging Information

Package Height

2.0 in [50.0 mm]

Package Length

8.3 in [21.0 cm]

Shipping (Package) Weight

13.1 oz [371.0 g]

Package Width

5.9 in [15.0 cm]

Performance

Serial Protocol

RS-232

Max Baud Rate

921.6 Kbps

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

MTBF

214,358 hours

Physical Characteristics

Product Height

0.6 in [15.0 mm]

Product Length

3.0 in [75.0 mm]

Weight of Product

1.8 oz [50.0 g]

Product Width

2.5 in [63.0 mm]

Material

Steel

Cable Length

11.8 in [30 cm]

Software

OS Compatibility

Windows® 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 2.6.x LTS Versions only

Microsoft WHQL Certified

Yes

Special Notes / Requirements

Note

Selectable power output on pin 9 of the serial port

What's in the Box

1 - Included in Package

4 Port PCI Express Serial Card
Full Profile Bracket (Installed)
Low Profile Bracket
12 in [30 cm] DB44 to DB9 Break-out Cable
Quick Start Guide

Date Created: 22:46, 10-09-2025
Product URL: https://www.pbtech.com/pacific/product/NETSTT4828626/StarTechcom-PEX4S953-4-port-PCI-Express-RS232-Seri