BuyDig via eBay offers the Sony 64GB UHS-I Class 10 SDHC Secure Digital High-Capacity Memory Card, model no. SF64UY/TQMN, for $32.99 with free shipping ($0.52/GB). That's the lowest total price we could find by $5, although we saw it for $3 less a month ago. It features read speeds of up to 40MB/s and write speeds of up to 10MB/s.