StarTech.com 24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter

Manufacturer: STARTECH - INDUSTRIAL IO | Model: ICUSB232INT2 | Product ID: 9412 | Warranty: 2 Years
£65.21 (inc. VAT)
5 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Ports & interfaces
Host interfaceIDC
Output interfaceSerial
Serial ports quantity2
Serial interface typeRS-232
Design
InternalYes
CertificationMicrosoft WHQL, CE, FCC
Features
Baud rate115.2
FIFO (First In, First Out)256
Data bits7,8
Stop bits1,2
Plug and PlayYes
Operational conditions
Operating temperature (T-T)-10 - 80
Storage temperature (T-T)-20 - 100
Operating relative humidity (H-H)5 - 85
System requirements
Windows operating systems supportedWindows 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 Pro,Windows 10 Pro x64,Windows 2000,Windows 2000 Professional,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 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,Windows 98SE,Windows CE,Windows Vista Business,Windows Vista Business x64,Windows Vista Enterprise,Windows Vista Enterprise x64,Windows Vista Home Basic,Windows Vista Home Basic x64,Windows Vista Home Premium,Windows Vista Home Premium x64,Windows Vista Ultimate,Windows Vista Ultimate x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64
Mac operating systems supportedMac OS X 10.10 Yosemite,Mac OS X 10.11 El Capitan,Mac OS X 10.12 Sierra,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks,Mac OS X 13.0 Ventura
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016
Technical details
Sustainability certificatesRoHS
Compliance certificatesRoHS
Weight & dimensions
Width120
Depth68
Height19
Weight63
Packaging data
Mounting brackets includedYes
Drivers includedYes
ManualYes
Package width144
Package depth175
Package height32
Package weight153
Logistics data
Harmonized System (HS) code84733020
Products per master (outer) case50
Master (outer) case width354
Master (outer) case length684
Master (outer) case height320

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Tue 25th Aug 2026 to Fri 28th Aug 2026
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Mon 24th Aug 2026 to Wed 26th Aug 2026
View all Delivery Options & International Rates
The ICUSB232INT2 USB to Serial Adapter lets you add 2 RS232 ports to any desktop system that is equipped with an available USB motherboard header.

Unlike standard USB to serial cables, this cable is designed for use inside the PC case, affording an entirely internal solution with no mess or extra adapters needed.

This compact and simple USB adapter offers a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

The StarTech.com Advantage
- Direct connection from the motherboard header allows for a clean and completely contained setup without taking up a PCI/PCI-Express slot in your system
- Standard and low profile/half-height bracket included to ensure fitment in any system
- Extensive list of OS support and Microsoft WHQL certified drivers makes for maximum compatibility and simple installation
Ports & interfaces
Host interfaceIDC
Output interfaceSerial
Serial ports quantity2
Serial interface typeRS-232
Design
InternalYes
CertificationMicrosoft WHQL, CE, FCC
Features
Baud rate115.2
FIFO (First In, First Out)256
Data bits7,8
Stop bits1,2
Plug and PlayYes
Operational conditions
Operating temperature (T-T)-10 - 80
Storage temperature (T-T)-20 - 100
Operating relative humidity (H-H)5 - 85
System requirements
Windows operating systems supportedWindows 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 Pro,Windows 10 Pro x64,Windows 2000,Windows 2000 Professional,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 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,Windows 98SE,Windows CE,Windows Vista Business,Windows Vista Business x64,Windows Vista Enterprise,Windows Vista Enterprise x64,Windows Vista Home Basic,Windows Vista Home Basic x64,Windows Vista Home Premium,Windows Vista Home Premium x64,Windows Vista Ultimate,Windows Vista Ultimate x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64
Mac operating systems supportedMac OS X 10.10 Yosemite,Mac OS X 10.11 El Capitan,Mac OS X 10.12 Sierra,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks,Mac OS X 13.0 Ventura
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016
Technical details
Sustainability certificatesRoHS
Compliance certificatesRoHS
Weight & dimensions
Width120
Depth68
Height19
Weight63
Packaging data
Mounting brackets includedYes
Drivers includedYes
ManualYes
Package width144
Package depth175
Package height32
Package weight153
Logistics data
Harmonized System (HS) code84733020
Products per master (outer) case50
Master (outer) case width354
Master (outer) case length684
Master (outer) case height320

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We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

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Product Returns Note

Buykingston offers a simple, hassle-free returns policy. If for whatever reason you are not happy with the item purchased, you can return it to us within 14 days of receipt for a refund. This applies to items purchased direct through Buykingston only.

Our 14 Day Returns Money Back Guarantee:
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.

Some items are excluded from our money-back guarantee unless they have developed a fault. These include:

- Headphones
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Returns FAQs

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.

Do I need to contact you before returning my order?
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Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we understand you may no longer have the original packaging.

Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable return postage, or provide a freepost label where available. If you are returning an item for another reason (including simply changing your mind), you are responsible for return postage unless we have expressly confirmed a freepost label in your RMA email — we recommend using a tracked and insured service for items of significant value.

Who deals with the warranty on a faulty item?
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.