Well, I don't know what to tell you there. I remember having packaging for a GVP product and there's this daughter card I remember that plugs into the CPU socket, holding the 68030 CPU, and a 68882 math coprocessor. There also, somehow, is a working, albeit ancient SCSI hard drive. I also think there's some SRAM in it. I'd have absolutely no occasion to have packaging for an Amiga accelerator that I don't own, much less a spare 68000 CPU just laying around in my junk electronics box. it isn't an A2000HD, I know that much.
If you know what the accelerator is, that would be helpful to whoever is buying it. It's possible that there is simply a SCSI controller and then this weird accelerator.