The ACE-80 is a training board using a Z80 microprocessor, equipped with a keypad and LCD display. - Model: ACE-80 - Type: Microcomputer training board - Accessories: Only the circuit diagram is included. No instruction manual. - Features: Keypad, LCD display - Manufacturer: Art Computer Co. This item has been stored for a long time. Although it has hardly been used, please understand that it is being sold as junk. I think it still works, but I haven't confirmed it. Thank you for looking.