For its newsletter subscribers only, newegg offers the ADATA Premier 64GB Class 10 microSDHC Secure Digital High-Capacity Card, model no. AUSDX64GUICL10-RA1, for $53.99. Coupon code "EMCXNVP66" cuts it to $43.19. With free shipping, that's $0.67/GB and the lowest total price we could find by $21. It includes an SD card adapter. Coupon expires August 1.