In my case, Luckily most of the cards that I have are microSD with adapter; and the few SD I have, I will continue using them with my Raspberry Pi B, or to save them the backup of the microSD of the new PI.
Katika kesi yangu, Kwa bahati nzuri wengi kadi kwamba mimi ni microSD na adapta; na wachache SD Nina, Itaendelea kutumia yao na yangu Raspberry Pi B, au hifadhi yao ya Chelezo ya ya microSD ya katiba mpya PI.