HGST Deskstar 4TB 7200rpm Hard Drive with 128MB Cache for $110 with code EMCXXERV2?. Normally about $135. Other 4TB drives are cheaper, but not 7200rpm which performs better. AData Ultimate SU800 128GB Solid State Drive with 3D NAND Flash for $48.50 direct from AData through Newegg. Includes a 3-year warranty. 3D NAND is the newest kind of SSD storage chips, and a description can be seen on Newegg. Western Digital Red 6TB Hard Drive for $190 with code EMCPERY23?. Normally about $200. Western Digital 2TB Elements Portable USB Hard Drive for $65 with coupon 80129EDSS02?. Normally at least $70.