SanDisk 256GB Micro SDXC Extreme Pro Memory Card Works with Samsung Galaxy S9, S9+, S8, S8
Amazon.com: 200GB SanDisk Ultra UHS-I Class 10 90mb/s MicroSDXC Memory Card works with Samsung Galaxy S8, S8 Plus, S8 Note, S7, S7 Edge, Cell Phones with Everything but Stromboli Memory Card Reader :
SanDisk Ultra 32GB MicroSD HC Class 10 UHS-1 Mobile Memory Card for Samsung Galaxy S7 & S7 Edge S8 & S8 Plus with USB 2.0 MemoryMarket Dual Slot MicroSD & SD Memory