If you have a Mac, avoid Tripp-Lite USA19HS. That one always worked for me, but it since the latest major OS update it's no longer supported natively by the OS. And when looking, none of the adapters they have are officially supported on the latest MacOS it seems.
I still manage to use FTDI and Prolific chipsets though. FDTI requires an updated driver (the OS natively supports it now it seems), and one of my serial tools complains about the OS's support for Prolific. MacOS might be a bumpy ride.