As one of its daily deals, Amazon offers Prime members the PNY 64GB Elite Performance UHS-1 Class 10 Secure Digital Extended Capacity Card, model no. P-SDX64U1H-GE, for $27.99 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise, it adds $8.) That's $2 under our May mention and the lowest total price we could find by $6. It features read speeds of up to 90MB/s. Deal ends today.