Buy.com offers the SanDisk 64GB Ultra UHS-I Class 10 microSDXC Memory Card with Adapter, model no. SDSDQUA-064G-A11A, for $37.99 with free shipping ($0.59/GB). That’s $2 under our Black Friday mention and the lowest total price we could find by $27. It’s UHS-I enabled and comes with a full-size SD card adapter.