BuyDig offers the Sony 64GB UHS-I Class 10 SDXC Memory Card 4-Pack, model no. E2SNSF64UXTQ, for $99.99. Checkout via Visa Checkout and apply coupon code "VISADADGRAD20" to cut that to $79.99. With free shipping, that's $20 per card and the lowest total price we could find for this quantity by $51. (For further comparison, we saw a single card for $30 last week.) Each card features read speeds of up to 94MB/s and write speeds of up to 45MB/s. Deal ends June 25.

Of note, this coupon expires after 5,000 redemptions.