StarTech.com USB to Serial Adapter Hub â€" 4 Port â€" Wall Mount â€" COM Port Retention â€" Texas Instruments â€" USB to RS232 Adapter

from Paul Hutch

I bought this through NewEgg about a month ago and it is the best built USB to EIA-232 adapter I've ever used.

from Hydrographic Surveyor

I've had this unit for well over 5 years, and it's been rock solid, by far the best serial port unit I've used. We are frequently logging data from multiple sensors, and working on the ocean and in the rain. This unit has survived the damp and the abuse, and always done the job perfectly. I just...

from Paul Hutch

I bought this through NewEgg about a month ago and it is the best built USB to EIA-232 adapter I've ever used.

from Hydrographic Surveyor

I've had this unit for well over 5 years, and it's been rock solid, by far the best serial port unit I've used. We are frequently logging data from multiple sensors, and working on the ocean and in the rain. This unit has survived the damp and the abuse, and always done the job perfectly. I just...

from paul0207

Bought about 3 or 4 years ago so it's out of warranty. Only worked once, now that I try to use it again it will work only if I press hard the serial connectors so probably the soldering is defective.