Newegg offers the Patriot 64GB LX Series UHS-I Class 10 Secure Digital Extended-Capacity SDXC Card, model no. PSF64GSDXC10, for $19.99 via the directions below. With free shipping, that's tied with our May mention and the lowest total price we could find by $10. It features read speeds of up to 40MB/sec. Deal ends June 15. To get this deal:

1. View the Patriot 64GB LX Series UHS-I Class 10 SDXC Card for $29.99
2. apply coupon code "EMCPDWG88" to make it $24.99
3. redeem this $5 mail-in rebate for a final price of $19.99