Hi there ,
I just purchased a
Hitachi HITMP750B 750GB Touro Mobile Pro USB 3.0 Hard Disk Drive from BH Photo for $99 delivered. I am using it with a laptop as the audio drive and it seems to be working fine.
It is a very small external 7200 rpm drive and is powered from the USB 3.0 port so no wallwart is needed.
I have not tried to record 8 simultaneous tracks but I do run multiple 24bit 48kHz soft synth and audio tracks with it.
Hope this helps somewhat.
Kind regards,
Rick