Newegg offers the Western Digital Blue M.2 500GB Serial ATA 6Gb/s SATA Internal SSD for $149.99. Coupon code "EMCRHBJ26" cuts its to $139.99. With free shipping, that's the lowest price we could find by $5, although we saw this for $5 less last month. It features read speeds of up to 545MB/s and write speeds of up to 525MB/s. Deal ends July 24.