NeweggFlash offers the SanDisk X300 512GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. SD7SB7S-512G-1122, for $119.99 with free shipping. That's $10 under our mention from three weeks ago and the lowest total price we've seen. (It's a current best by $16.) It features read speeds of up to 520MB/s and write speeds of up to 460MB/s.