Amazon offers the SanDisk 200GB UHS-I Class 10 microSDXC Card, model no. SDSDQUAN-200G-G4A, for $69.95. Coupon code "BIGTHANKS" drops it to $61.32. With free shipping, that's the lowest total price we could find by $9, although we saw it for $11 less on Black Friday. It includes an adapter.