Amazon.com: SanDisk 64GB SDXC SD Extreme Pro UHS-II Memory Card Works with Olympus OM-D E-M10 II, OM-D E-M1 Mark II, Pen-F Camera (SDSDXPK-064G-ANCIN) Bundle with 1 Everything But Stromboli 3.0 Card Reader :
SanDisk Extreme PRO 64 GB Class 3/UHS-II (U3) V90 SDXC - Walmart.com