Startech

StarTech 4-Port Serial PCIe Card PS74ADFSERIALCARD

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SKU:
20632888
MPN:
ps74adf-serial-card
Availability:
Usually ships the same or next business day. In stock at our CA, IN, MS, NJ, TX warehouses.
Shipping:
Calculated at Checkout
Stock Update:
12/13/2025 11:57:36 PM PST
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$209.38
Stock Update:
12/13/2025 11:57:36 PM PST

Description



This item is brand-new, factory sealed.

StarTech.com 4-Port Serial PCIe Card, Quad-Port PCI Express to RS232/RS422/RS485 DB9 Serial Card, Standard/Low-Profile Brackets, 16C1050 UART, ESD Protection, Windows/Linux (PS74ADF-SERIAL-CARD)
  • 4-PORT PCIE SERIAL CARD: On-board DIP switches allow each DB9 serial port to operate in its own independent mode, enabling the connection of RS-232, RS-422, and RS-485 devices; LED indicators to monitor data transmit/receive status
  • CONFIGURABLE POWER: Quad-Port PCI Express Serial Adapter Card features configurable power of 12V (1.5A per port), 5V (1.5A per port), or no power (RI) over pin 9 via auxiliary SATA power; Per-Port power modes are individually configurable via jumpers
  • APPLICATIONS: Ideal for desktops and servers, with a wide range of uses such as point-of-sale terminals, PLCs, factory control and automation, scientific sensors, medical equipment, scanners, and oscilloscopes; DB9 ports work with screw-locking cables
  • STANDARD & LOW PROFILE BRACKETS: TAA-Compliant Serial Card is equipped with two standard profile brackets (pre-installed), and includes four low-profile brackets for compatibility with small form factor desktops/servers
  • TECH SPECS: Asix AX99100 Chipset; 16C450 and 16C550 UART compatible; 4x 9-Pin D-Sub Ports; Max Baud 921.6Kbps per port; 256 Byte FIFO; COM Retention; Supports Windows and Linux; Odd/Even/Mark/Space/None Parity Modes; 5/6/7/8/9 Data Bits; PCIe 2.0 x1
  • Brand: ?StarTech.com
  • Item model number: ?PS74ADF-SERIAL-CARD
  • Operating System: ?Windows 7, 8, 8.1, 10, 11 , Windows Server 2016, 2019, 2022 , Linux 2.6.13 and newer (LTS Versions Only)
  • Item Weight: ?2.08 ounces
  • Product Dimensions: ?4.8 x 4.3 x 0.6 inches
  • Item Dimensions LxWxH: ?4.8 x 4.3 x 0.6 inches
  • Color: ?Black
  • Manufacturer: ?StarTech.com

Add serial communication support to a desktop computer or Small Form Factor (SFF) system, using this 4-Port Serial PCI Express Card. The four DB9 ports can be independently configured to support RS-232, RS-422, and 2/4-wire RS-485 Recommended Standards, for communication with compliant serial peripheral devices. This PCIe Serial Card is equipped with on-board DIP switches, enabling each DB9 serial port to operate in RS-232, RS-422, and/or RS-485 mode(s). The card features LED indicators per port, providing real-time monitoring of port activity. The PCI Express Serial Adapter Card features three power modes that are configurable via on-board jumpers, including 12V (1.5A per port), 5V (1.5A per port), or no power (RI), over pin 9. This serial card enables the continued use of legacy serial devices, preventing down time and avoiding costly upgrades. The 4-Port PCIe Serial Card is an ideal system upgrade for a wide range of applications (e.g., point-of-sale terminals, PLCs, factory control and automation, scientific sensors, medical equipment, scanners, and oscilloscopes). This product is backed for 2-years and free lifetime 24/5 multi-lingual technical assistance.



Package Contents:
  • 4-Port Serial Card
  • 4 x Low-Profile Bracket
  • 3 x Ribbon Cable
  • 1 x Quick-Start Guide

Features

Package Contents:   
  • 4-Port Serial Card
  • 4 x Low-Profile Bracket
  • 3 x Ribbon Cable
  • 1 x Quick-Start Guide

 

TAA Compliant:   
Yes

 

Environmentally Friendly:   
Yes

 

Environmental Compliance:

Restriction of Hazardous Substances (RoHS)
Waste Electrical and Electronic Equipment Directive (WEEE)

 

Specs

Physical Characteristics
Form FactorPlug-in Card
Weight (Approximate)2.12 oz
Card HeightLow-profile
Height0.6"
Width4.3"
Depth4.8"
Warranty
Limited Warranty2 Year
Interfaces/Ports
Number of Serial Ports (External)4
General Information
Brand NameStarTech.com
Manufacturer Website Addresshttp://www.startech.com
Marketing InformationAdd serial communication support to a desktop computer or Small Form Factor (SFF) system, using this 4-Port Serial PCI Express Card. The four DB9 ports can be independently configured to support RS-232, RS-422, and 2/4-wire RS-485 standards, for communication with compliant serial peripheral devices.
Per-Port Serial Configuration
This PCIe Serial Card is equipped with on-board DIP switches, enabling each DB9 serial port to operate in RS-232, RS-422, and/or RS-485 mode(s). The card features LED indicators per port, providing real-time monitoring of port activity.
Configurable External SATA Power
The PCI Express Serial Adapter Card features three power modes that are configurable via on-board jumpers, including 12V (1.5A per port), 5V (1.5A per port), or no power (RI), over pin 9.
Legacy Connectivity
This serial card enables the continued use of legacy serial devices, preventing down time and avoiding costly upgrades. The 4-Port PCIe Serial Card is an ideal system upgrade for a wide range of applications (e.g., point-of-sale terminals, PLCs, factory control and automation, scientific sensors, medical equipment, scanners, and oscilloscopes)
Product TypeSerial Adapter
Product Name4-Port Serial Card
ManufacturerStarTech.com
Manufacturer Part NumberPS74ADFSERIALCARD
Packaged Quantity1
Technical Information
Host InterfacePCI Express 2.0 x1
UART Type
Platform Supported

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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StarTech 4-Port Serial PCIe Card PS74ADFSERIALCARD
$209.38