This is the main board for a Akai S5000 sampler including some memory, but only 8MB I think. It has a new battery and SCSI Fuse. One pin on the effects slot has come off, but this is a passive pin as only 3 pins are used. Please check photo. I have put arrow to broken pin and to contact on back to show it is not used. Also there is a screen shot of the S5000 screen with a arrow pointing to the confirmation of a effects board installed.