Newegg offers the Patriot 64GB LX Series UHS-I Class 10 Secure Digital Extended-Capacity SDXC Card, model no. PSF64GSDXC10, for $29.99. This $10 mail-in rebate cuts it to $19.99. With free shipping, that's $5 under our mention from a week ago and the lowest total price we could find by $12. It features read speeds up to 50MB/sec. Offer ends April 24.