Hi Folks,
I am selling my QA400. It's just overkill for what I'm doing. Works great. No manual, software has help but is pretty easy to figure out. Latest version of SW is available on the Quantasylum website (via Github) if you want to take a peek at it.
Note that max input is 5V, so you will need a buffer/attenuator if playing with higher signals. Currently running on Win10 v.1709. There is a known problem with v1803. Any Win 7 is fine. No cables included.
$150 shipped to US. PM me.
Thanks,