I didn't have any eeprom subcards for my ds devcart so I made one based on images of the real version (E202874, 4k eeprom). I got a batch made at jlcpcb and have some spares left over. They also include the footprint for a flashchip, with extra long pads for compatibility with the larger version commonly found on aliexpress (e.g. M45PE40-VMW6TG for 4-Mbit)
Shipping worldwide* is $9 USD
*Most places.
Shipping worldwide* is $9 USD
*Most places.
