A U36 PCB, to fit in the blank U36 ROM space of the Commodore 128 series of Commodore Machine., This takes a 256Kbit ROM space, and expands it to 020 (2MBits) - Includes a SMT Pic and SMT D-Type Flipflop underneath the main ROM, as control, and interfaces with the Commodores Memory lines. The boards, are fine Pitch - but still PCBWay gives great quality - and had no problems with soldering the Parts.