Amazon.com: SanDisk 400GB SDXC Micro Ultra Memory Card and Adapter Bundle Works with Samsung Galaxy J6+, J4+, Book2 Phone or Tablet Class 10 (SDSQUAR-400G-GN6MA) Plus (1) Everything But Stromboli (TM) Card Reader :
SanDisk 400GB Extreme microSDXC UHS-I/U3 A2 Memory Card with Adapter, Speed Up to 160MB/s (SDSQXA1-400G-GN6MA) - Newegg.com