Newegg offers the Patriot 64GB Signature UHS-I microSDHC Class 10 Secure Digital Extended-Capacity Card
, model no. PSF64GMCSDXC10, for $41.99. This $5 mail-in rebate
drops it to $36.99
. With free shipping
, that's $0.58/GB and the lowest total price we could find by $13. It comes with a full-size SD card adapter. Rebate expires January 31.