Amazon offers the Plextor M8Pe M.2 2280 256GB PCI-Express 3.0 Internal Solid State Drive for $132. Clip the $30 off coupon on the product page to cut that to $102. With free shipping, that's $4 under our August mention and the lowest price we've seen. (It's the best deal now by $30.) It features a PCI-Express 3.0 x4 connector with up to 2,500MB/s sequential read and 1,400MB/s sequential write speeds.