CPU: 16 bit Motorola 68000 @ 7.67MHz. Sound co-processor - Zilog Z80 8-bit @ 3.58MHz
Display: 320 x 224, 64 colours out of 512. 80 sprites.
Sound: Yamaha YM2612 6 channel FM, additional 4 channel PSG. Stereo sound. Also Texas Instruments SN76489 Programmable Sound Generator.
Memory: 64K Main RAM, 64K VRAM, 8K Sound RAM, 20K ROM.
Software Media: Cartridge.
Value: £50 - £150.
Very sought after, but there are a lot of very tatty examples that haven't been looked after.