Team 64GB UHS-1 microSDXC Memory Card w/ Adapter for $29 + free shipping
Newegg offers the Team 64GB UHS-1 microSDXC Memory Card with Adapter, model no. TUSDX64GUHS03, for $34.99. Coupon code "EMCPDPG57" cuts it to $28.99. With free shipping, that's $6 off and tied with our April mention as the lowest total price we could find. It includes an SD adapter and features read speeds of 40MB/s and write speeds of 10MB/s.
3 very similar deals were also reported by some other sources: