The trinket arrived! kinda late, muh...
New problem tho, it uses a usb-micro connector. It didn't come with a cable and I don't have one.... more ordering and waiting!
let there be progress tho!
A board corey got working found us a new problem. It seems that most SD cards can stall upwards of 300ms 0.3seconds! during write, even at 8khz sampling this is waaaay too long for the avrs ram to buffer samples. we tried an 8G card, 4G card, and an older 512M card, of them, the 512M card was best, peaking its delays at about 148ms. Not sure how to solve this issue.