StarTech.com 1 Port Professional USB to Serial Adapter Cable with COM Retention

Manufacturer: Startech | Model: ICUSB2321X | Product ID: 3021 | Warranty: 2 Years
£43.86 (inc. VAT)
22 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Ports & interfaces
Connector 1DB-9
Connector 2USB 2.0 A
Connector 1 genderMale connector
Connector 2 genderMale connector
Cable length0.42
Performance
Product colourBlack
Housing materialPlastic
ChipsetTexas Instruments - TIUSB3410
Baud rate230.4
FIFO (First In, First Out)32
CertificationCE, FCC
Compatible operating systems- Windows XP, Vista, 7, 8 - Windows Server 2003, 2008 R2, 2012, 2016
Operational conditions
Operating temperature (T-T)-10 - 80
Storage temperature (T-T)-20 - 100
Relative humidity5 - 85
Sustainability
Sustainability certificatesRoHS
Weight & dimensions
Width35
Depth420
Height13
Weight30
Packaging data
Package width174
Package depth144
Package height32
Package weight99
Packaging content
Quantity per pack1
ManualYes
Drivers includedYes

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
The ICUSB2321X Professional grade USB Serial Adapter cable converts a USB 2.0 port into an RS232 serial port allowing you to connect to, monitor and control your serial devices. A durable, single cable design makes this the perfect solution for mobile technicians/administrators that require serial connectivity. Once connected, the USB to serial adapter retains assigned serial COM port values, allowing the same values to automatically be re-assigned to the port provided by the adapter in the event it is disconnected, then re-connected to the host computer.

This innovative adapter offers a professional grade solution for connecting legacy or industrial RS232 serial devices to more modern computers, or computers with unused USB ports – perfect for connecting serial modems, barcode scanners or any device with serial sync through USB, eliminating the expense of upgrading the serial peripheral for USB compatibility.

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

The StarTech.com Advantage
- Simple installation and operation with COM port retention provides robust serial connectivity for legacy devices with minimal hassle
- Easy plug and play installation with USB Powered device - no power outlet required
- Extensive list of compatible operating systems makes this device perfect for almost any RS232 application
Ports & interfaces
Connector 1DB-9
Connector 2USB 2.0 A
Connector 1 genderMale connector
Connector 2 genderMale connector
Cable length0.42
Performance
Product colourBlack
Housing materialPlastic
ChipsetTexas Instruments - TIUSB3410
Baud rate230.4
FIFO (First In, First Out)32
CertificationCE, FCC
Compatible operating systems- Windows XP, Vista, 7, 8 - Windows Server 2003, 2008 R2, 2012, 2016
Operational conditions
Operating temperature (T-T)-10 - 80
Storage temperature (T-T)-20 - 100
Relative humidity5 - 85
Sustainability
Sustainability certificatesRoHS
Weight & dimensions
Width35
Depth420
Height13
Weight30
Packaging data
Package width174
Package depth144
Package height32
Package weight99
Packaging content
Quantity per pack1
ManualYes
Drivers includedYes

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Buykingston order despatch times:

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

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

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
- Earphones
- Custom made and designed products, such as flash memory products with custom logos on them, e.g. USB flash drives and memory cards with your own logo

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?
Yes, to obtain an RMA number before sending anything back.

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.