Ahhhhh well those are Digidesigns 8 inputs of hi-def 192khz, 24 bit interfaces. 3 gets you 24 tracks of I/O or inputs and outputs. It's for use primarily in a ProTools system.

I know guys that are still using the 48kHz versions because their plug-ins don't work with the 192kHz variety but their recordings and mixes still sound outrageously good even at 48kHz. So your dad's friend has a bitchin' system. Start saving your $$$.

Not a ProTools user
Ms. Remy Ann David

sweet
haha stupid question but where are the inputs??

In the back.

are they those small holes which say 1a 1b 2a 2b etc.. ?

Nope...it's those other ones labled +4 and -10. You need to have a snake with a DB25 connecter on one end. The DB25 plugs into the 192. On the other end of the snake you may have 1/4" or XLR connectors to plug into a board or some other devices.