DigitusUSB to serial adapter - RS232 converter - USB 2.0 Type-A to DSUB 9M - FTDI FT232RL chipset - Incl. 80 cm cable

Used this to connect to the serial port on my MegaSquirt fuel injection controller. I set the port speed to 115200, and it connected first time. Spent ages struggling with cheap rubbish when I should have just got one of these. It even comes with a short USB extension cable to take the strain off your USB port, so you don't even need additional cables to get connected. Definitely recommended.I did make sure to start with the latest drivers which are available from the ftdichip website.

worked with old d-sub equipment, i think its the FTDI chipset that makes this work so good

Absolutely loving it! Great little product. Extremely fast shipping, even arrived 2 days before estimated delivery date. Affordable and compatible with everything. I use it mosutly for connecting and configuring to HP and CISCO routers and switches. FTDI chipset ensures driver support and hassle free operation, as opposed to previous (Prolific) RS232 converter i owned. With Prolific and other ones i tried (different chipsets) every major Windows update forced driver update, and updated driver never worked, there was no communication with device, so always had to manually reinstall from customized driver and manually stop it from updating. It was quite a chore. With this one it's guaranteed it will always work and auto install perfect driver. It's really small and has protective cap for USB connector so you can conveniently store it almost anywhere. and has separate USB extension cable included. I've tried many of different USB to serial RS232 converters cause we use them at work all the time, on different operating systems and devices, and of all brands and makes this is the one I would recommend to anyone needing the converter. Highly recommended.

I have a very awkward and old audio amplifier which is extremely finicky to connect to using a com port, my old laptop which had a com port worked fine until my son blow it up fiddling with a charger, so I have tried a few USB to com all failed but this one works every time, in windows XP pro, Windows 7 64bit and windows 10 64bit Brilliant thank you for a great product.

I have found some versions of this converter don't generate RS232 level voltages, but TTL instead, and so are very unlikely to work with RS232 serial devices. This one, however, does produce the correct signal levels, was easy to install (didn't even need the install disc - my PC just found the right drivers automatically) and it works well.

Bought this to connect to a 1988 Cambridge Z88 "laptop". Recommended to my by a Z88 expert - needed full hardware handshaking and this unit supports it.This worked perfectly with the EazyLink2 software installed on the Z88 and Windows laptop (Linux version failed with a very cryptic error, still investigating why) - note that if you do not hve EZ2 popup installed on the Z88 end, the PC software will default to using the built-in Import/Export popup instead.Note that if you buy this for the same reason, you must get a Z88 specific serial cable as it is non-standard.

Product as described in the specification information. Excellent service - item arrived well in advance of the expected delivery dates. Fully recommended. Installation instructions not too clear - did not auto install on my version of Windows 7. You then need to know which folder to choose from the CD. All worked out OK but could be better explained.

I bought this to convert an Atarimax SIO2PC serial adaptor to work with the USB port on my Mac for use with SIO2OSX software. It works perfectly and is also recognised as a serial port by similar Windows programs (APE and Pro System) working in a Parallels virtual machine using the same hardware.