StarTech.com 3ft USB to RS232 DB9 Serial Adapter Cable - M/M

Manufacturer: Startech | Model: ICUSB232SM3 | Product ID: 5886 | Warranty: Lifetime
£35.13 (inc. VAT)
Availability: 0 in stock

Product Technical Specification

Ports & interfaces
Connector 1DB-9
Connector 2USB 2.0 A
Connector 1 genderMale connector
Connector 2 genderMale connector
Cable length0.9
Performance
Product colourBlue,Transparent
Housing materialPlastic
ChipsetProlific - PL2303HXD
Baud rate921.6
FIFO (First In, First Out)192
CertificationCE, FCC
Compatible operating systemsWindows CE 4.2, 5.2, Vista, 7, 8, 8.1, 10, 11 Windows Server 2003, 2008 R2, 2012, 2016, 2019 macOS 10.6 to 10.15, 11.0, 12.0, 13.0 Linux 2.4.x+
Operational conditions
Operating temperature (T-T)0 - 60
Storage temperature (T-T)-20 - 80
Relative humidity0 - 65
Sustainability
Sustainability certificatesRoHS
Weight & dimensions
Width35
Depth914
Height15
Weight56
Packaging data
Package width200
Package depth220
Package height15
Package weight70
Packaging content
Quantity per pack1
Logistics data
Products per master (outer) case100
Master (outer) case width360
Master (outer) case length570
Master (outer) case height290

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Fast & Tracked by Courier
£6.95
Fast & Tracked by Courier

Fast & Tracked by Courier (UK)

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
The ICUSB232SM3 3ft USB to Serial Adapter Cable lets you connect DB9 RS232 serial devices to your Mac® or PC laptop or desktop computer through an available USB port, as though the computer offered an onboard DB9M connector.

Unlike typical USB to serial converter cables where the conversion takes place at the DB9 end, the StarTech.com ICUSB232SM3 features a converter chip on the USB end. Converting at the USB source overcomes the 15ft. technical limit of USB cables, allowing for a much greater serial DB-9 extension cable (50ft.+ is possible depending on the application) if necessary.

Simple to install and use, this USB to Serial adapter is a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals.

Backed by a StarTech.com lifetime warranty and free lifetime technical support.
Ports & interfaces
Connector 1DB-9
Connector 2USB 2.0 A
Connector 1 genderMale connector
Connector 2 genderMale connector
Cable length0.9
Performance
Product colourBlue,Transparent
Housing materialPlastic
ChipsetProlific - PL2303HXD
Baud rate921.6
FIFO (First In, First Out)192
CertificationCE, FCC
Compatible operating systemsWindows CE 4.2, 5.2, Vista, 7, 8, 8.1, 10, 11 Windows Server 2003, 2008 R2, 2012, 2016, 2019 macOS 10.6 to 10.15, 11.0, 12.0, 13.0 Linux 2.4.x+
Operational conditions
Operating temperature (T-T)0 - 60
Storage temperature (T-T)-20 - 80
Relative humidity0 - 65
Sustainability
Sustainability certificatesRoHS
Weight & dimensions
Width35
Depth914
Height15
Weight56
Packaging data
Package width200
Package depth220
Package height15
Package weight70
Packaging content
Quantity per pack1
Logistics data
Products per master (outer) case100
Master (outer) case width360
Master (outer) case length570
Master (outer) case height290

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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.