Newegg offers the G.SKILL 64GB Class 10 UHS-I microSDXC, model no. FF-TSDXC64GN-U1, for $29.99. Coupon code "EMCAKNX65" cuts the price to $22.49. With 99 cents for shipping, that's $2 below our fall mention and the lowest total price we've seen. (It's a current low by $6.) Deal ends February 4.

Update: Amazon has it for $22.49 with free shipping for Prime members, although stock is limited.