Listed is a brand new C64 512KB Cartridge board ONLY that is Magic Desk/Ocean compatible. All the information you need is on the github page. You can substitute 74LSxxx logic chips with their 74 HCTxxx equivalences. Please see photos for additional details.
WHAT YOU GET
YOU GET THE PCB BOARD -- COLOR IS UPON AVAILABILITY.
TERMS:

• NO RETURNS/REFUND
• NO TECHNICAL SUPPORT PROVIDED

IMPORTANT:
The board is sold AS IS and ONLY the board.
STANDARD DISCLAIMER:
I AM NOT RESPONSIBLE FOR YOUR PROJECT IN ANYWAY, THAT IS, ANY KIND OF DAMAGES TO YOUR MACHINE(S)/COMPUTER(S), INCLUDING BUT NOT LIMITED OF TO PHYSICAL, MENTAL, EMOTIONAL, PROPERTY-WISE, OR FINANCIALLY. NOR AM I RESPONSIBLE FOR ANY TECHNICAL SUPPORT. THIS IS JUST LIKE A BREAD BOARD THAT YOU USE WIH YOUR RESPONSIBILITY AND IMAGINATION. You MUST read and understand all the computer electrical characteristics on its peripherals, e.g., expansion slots, etc., before using the ampere you can use! Please research that on the internet! You MUST also understand all electrical characteristics of whatever ICs that you use. Read the datasheets! NO returns or refunds. Please note that the descriptions were provided to the best of quality. Not responsible for any typos.
PLEASE ASK QUESTIONS IF YOU'RE IN DOUBT BEFORE offerDING OR BUYING!