TigerDirect offers the Centon 64GB Class 10 Secure Digital XC Card, model no. 64GBSDXC, for $27.99 plus $3.69 for shipping ($0.50/GB). That’s $11 under our June mention and the lowest total price we’ve seen for a 64GB SDXC card without rebate hassles. (It’s also a current price low by $17.)