best cyclods evolution compatible gba flashcard

what is the best one? it needs to support the realtime clock feature, and patched roms. money is no problem

EZ-3-in-1 maybe? I thought that was compatible with most ones.

it doesnt support real time clock feature (ruby, sapphire, emerald. its used for the berry events.)

I believe there is a patch for those games to correct it though.

can you be more specific? a link would be nice.