Adata via Rakuten offers the Adata Ultimate SU800 512GB 3D NAND 2.5" Serial ATA 6Gb/s Internal SSD for $119.99. Coupon code "AD18" drops it to $101.99. (You'll need to be signed in for this to work.) With free shipping, that's $17 under our February mention, an all-time best, and the lowest price we could find by $28. It features read speeds of up to 560MB/s and write speeds up to 520MB/s. Deal ends April 15.