Amazon offers its Prime members the Sony 64GB UHS-I Class 10 microSDXC Memory Card, model no. SR64UY2A/TQ, for $14.99 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.) That's tied with our mention from last month and the lowest total price we've seen. (It's a current best by $4, although most retailers charge around $24 or more.) It features transfer speeds of up to 70MB/s.