The speed you need for 4K.
Toshiba Exceria 32GB 90mb/s MicroSDHC Memory Card With Adapter
Toshiba Exceria M302 64GB micro SDXC - THN-M302R0640EA
Toshiba 128GB Exceria M302 Micro SDXC Card U3 Class 10 with Adapter
Genuine Toshiba Exceria 128GB MicroSD SDXC Card with Adapter U3 90mb/s UK Seller
Kioxia (formerly Toshiba) Exceria 128GB MicroSD SDXC 100MB/s Class 10 UHS-1 card
