StarTech.com 4-Port Serial PCIe Card, Quad-Port PCI Express to RS232/RS422/RS485 (DB9) Serial Card, Low-Profile Bracket Incl., 16C1050 UART, Windows/Linux, TAA Compliant - Level-4 ESD Protection

Manufacturer: STARTECH - IO NETWORKING | Model: PS74ADF-SERIAL-CARD | Product ID: 8515 | Warranty: 2 Years
£178.86 (inc. VAT)
16 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Ports & interfaces
Host interfacePCIe
Output interfaceSerial
Serial ports quantity4
Serial interface typeRS-232/422/485
Design
InternalYes
Product colourBlack
LED indicatorsActivity
Features
ChipsetASIX - AX99100
Baud rate921.6
FIFO (First In, First Out)256
Data bits5,6,8,9
Stop bits1,1.5,2
Flow control supportYes
Parity bitEven,Mark,N,Odd,Space
Operational conditions
Operating temperature (T-T)0 - 70
Storage temperature (T-T)-20 - 80
Operating relative humidity (H-H)20 - 80
System requirements
Windows operating systems supportedWindows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 IoT Enterprise,Windows 10 Pro,Windows 10 Pro x64,Windows 10 x64,Windows 11,Windows 11 Enterprise,Windows 11 Enterprise x64,Windows 11 Home,Windows 11 Pro,Windows 11 x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2016,Windows Server 2019,Windows Server 2022
Technical details
Sustainability complianceYes
Sustainability certificatesRoHS,Trade Agreements Act (TAA)
Compliance certificatesRoHS,Trade Agreements Act (TAA)
Weight & dimensions
Width109
Depth121
Height16
Weight60
Packaging data
Cables includedRibbon cable
Mounting brackets includedYes
User guideYes
Package width144
Package depth207
Package height38
Package weight273.2
Logistics data
Products per master (outer) case50
Master (outer) case width685
Master (outer) case length345
Master (outer) case height306
Other features
Cable length0.3
Electrostatic Discharge (ESD) protection15

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
Add four RS-232, RS-422, or RS-485-capable DB9 Serial Ports to a desktop computer via PCIe x1 Expansion CardAdd 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 ConfigurationThis 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 PowerThe 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 ConnectivityThis 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)The StarTech.com Advantage
Ports & interfaces
Host interfacePCIe
Output interfaceSerial
Serial ports quantity4
Serial interface typeRS-232/422/485
Design
InternalYes
Product colourBlack
LED indicatorsActivity
Features
ChipsetASIX - AX99100
Baud rate921.6
FIFO (First In, First Out)256
Data bits5,6,8,9
Stop bits1,1.5,2
Flow control supportYes
Parity bitEven,Mark,N,Odd,Space
Operational conditions
Operating temperature (T-T)0 - 70
Storage temperature (T-T)-20 - 80
Operating relative humidity (H-H)20 - 80
System requirements
Windows operating systems supportedWindows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 IoT Enterprise,Windows 10 Pro,Windows 10 Pro x64,Windows 10 x64,Windows 11,Windows 11 Enterprise,Windows 11 Enterprise x64,Windows 11 Home,Windows 11 Pro,Windows 11 x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2016,Windows Server 2019,Windows Server 2022
Technical details
Sustainability complianceYes
Sustainability certificatesRoHS,Trade Agreements Act (TAA)
Compliance certificatesRoHS,Trade Agreements Act (TAA)
Weight & dimensions
Width109
Depth121
Height16
Weight60
Packaging data
Cables includedRibbon cable
Mounting brackets includedYes
User guideYes
Package width144
Package depth207
Package height38
Package weight273.2
Logistics data
Products per master (outer) case50
Master (outer) case width685
Master (outer) case length345
Master (outer) case height306
Other features
Cable length0.3
Electrostatic Discharge (ESD) protection15

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For items returned in resaleable condition, with all original packaging. If an item has been opened for inspection but shows signs of use beyond that, a deduction may apply to reflect the reduced value — see our full Terms & Conditions (Section 12) for details.

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What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked items.

How do I go about returning my order?
Please contact us via our contact page with your order number. We will provide you with an RMA number and return instructions, including your return deadline and whether a freepost label applies to your order.

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Does my item have to include its original packaging?
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We will. In some circumstances we may ask you to contact the manufacturer directly for assistance.

Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.