I bought the IOGear, as recommended in this thread and in the buyers' guide. It seems to work fine as long as I'm just doing sound output, modulo a little bit of flakiness that seems to happen with a Macbook Air as well.
On the other hand, if I try to use sound input from my headset, everything fails. No sound in or out (except some infrequent random ticking sounds). This same headset does work properly with two different macbook airs.
Anyone know what might be happening here?
MB: GA-Z77-DS3H, 10.8.3, builtin HD4000.
BTW, speaking of headsets, let me NOT recommend the "Connectland". Works fine with decent sound quality, EXCEPT there's a >.5s delay on sound output. No problem if you're listening to music, but unbearable for video, and bad for phone calls.