Adorama offers the SanDisk 64GB Ultra Class 6 SDXC Secure Digital Extended-Capacity Card, model no. SDSDRH-064G-A11, for $46.95 with free shipping ($0.73/GB). That’s $13 under our March mention and the least expensive 64GB SDXC card of any class that we’ve ever seen. (It’s also a current price low by $10; we saw a class 10 yesterday for just $2 more, now expired.)