Well, just from the pictures, its a RAM/SCSI addon that clips in to the 68000 socket of whatever machine it was made for.
As for the "Commodore" part, it WILL NOT fit in to an A500

68000/8Mhz
The sticker is just a Quality test pass sticker.
There are 8 (Eight) Simm sockets, for the old simm modules. (At a push I would suggest 8MB of ram, unless it DID allow 4MB simms, highly unlikely we will find out).