StarTech.com 6.6ft (2m) USB to Serial Adapter Cable, COM Retention, Interchangeable Screws/Nuts, USB-A to DB9 RS232, FTDI IC, ESD Protection, Windows/macOS/Linux

Manufacturer: STARTECH | Model: 1P6FFC-USB-SERIAL | Product ID: 2421 | Warranty: 2-Year Warranty
£38.61 (inc. VAT)
7 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Features
Product colourBlack
Cable length2
Connector 1USB Type-A
Connector 2DB-9
Connector 1 genderMale connector
Connector 2 genderMale connector
Connector 1 form factorStraight
Connector 2 form factorStraight
ChipsetFTDI - FT232R
Baud rate921.6
Data bits7,8
FIFO (First In, First Out)256
Parity bitEven,Mark,N,Odd,Space
Stop bits1,2
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 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
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 10.13 High Sierra,Mac OS X 10.14 Mojave,Mac OS X 10.15 Catalina,Mac OS X 10.9 Mavericks,Mac OS X 11.0 Big Sur,Mac OS X 12.0 Monterey,Mac OS X 13.0 Ventura,Mac OS X 14.0 Sonoma
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019,Windows Server 2022
Packaging data
Quantity per pack1
Package width220
Package depth1
Package height200
Package weight95
Operational conditions
Operating temperature (T-T)-40 - 80
Storage temperature (T-T)-40 - 80
Operating relative humidity (H-H)0 - 95
Packaging content
ManualYes
Logistics data
Master (outer) case width600
Master (outer) case length485
Master (outer) case height345
Products per master (outer) case100

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 an RS232 serial port to a laptop or desktop, using an available USB-A port

Add RS-232 serial communication support to USB-A enabled Data Terminal Equipment (DTE - e.g., desktop or laptop), using this 6.6-foot (2-meter) straight through USB to Serial Adapter Cable.

Serial Port Expansion

The USB Serial Adapter adds an RS-232 serial DB/DE-9 (male) connector to a desktop or laptop via a USB Type-A port. Secure the adapter to a serial device, using pre-installed and removable slotted D-Sub thumbscrews or install the included DB-9 Nuts for compatibility with other serial peripheral devices or cables.

LED Indicators

Data transmission and reception LED indicators on the adapter provide real-time monitoring of port activity. The USB LED indicates when the adapter has successfully enumerated on the desktop or laptop. All the LEDs aid with diagnostics and troubleshooting.

Seamless Connectivity

The adapter is compatible with Windows, macOS, ChromeOS, and Linux. Drivers automatically install to Windows 7 and newer versions, macOS 10.15 and above, and Linux. The USB to RS-232 adapter features COM retention, which automatically reassigns the COM port value if the cable is disconnected and reconnected, or if the system is rebooted.

Built To Last

The rugged TPE construction and Level-4 ESD protection (15kV air and 8kV contact) enhance the reliability and longevity of the USB to Serial Adapter. Copper shielding minimizes Electromagnetic and Radio Frequency Interference (EMI and RFI). Gold-plated connectors enhance signal conductivity.

The StarTech.com Advantage
Features
Product colourBlack
Cable length2
Connector 1USB Type-A
Connector 2DB-9
Connector 1 genderMale connector
Connector 2 genderMale connector
Connector 1 form factorStraight
Connector 2 form factorStraight
ChipsetFTDI - FT232R
Baud rate921.6
Data bits7,8
FIFO (First In, First Out)256
Parity bitEven,Mark,N,Odd,Space
Stop bits1,2
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 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
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 10.13 High Sierra,Mac OS X 10.14 Mojave,Mac OS X 10.15 Catalina,Mac OS X 10.9 Mavericks,Mac OS X 11.0 Big Sur,Mac OS X 12.0 Monterey,Mac OS X 13.0 Ventura,Mac OS X 14.0 Sonoma
Linux operating systems supportedYes
Server operating systems supportedWindows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019,Windows Server 2022
Packaging data
Quantity per pack1
Package width220
Package depth1
Package height200
Package weight95
Operational conditions
Operating temperature (T-T)-40 - 80
Storage temperature (T-T)-40 - 80
Operating relative humidity (H-H)0 - 95
Packaging content
ManualYes
Logistics data
Master (outer) case width600
Master (outer) case length485
Master (outer) case height345
Products per master (outer) case100

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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.