Newegg offers the Plextor 512GB S2G M.2 2280 Serial ATA III Internal SSD for $54.99 with free shipping. That's tied with our mention from January and the lowest price we could find now by $7. It features read speeds up to 520MB/s and write speeds up to 480MB/s. Deal ends March 21.
Teaching can be tough, but the life of a K-12 educator depends a lot on where you live.