Newegg offers the OEM Patriot 64GB Signature UHS-I Class 10 microSDXC Memory Card, model no. PSF64GMCXC10BK, for $24.99. Redeem this $5 mail-in rebate to cut it to $19.99. With 99 cents for shipping, that's tied with our mention from two weeks ago and the lowest total price we could find by $6. It features transfer speeds of up to 40MB/s. Rebate ends March 10.