 "Western Digital Blue 1 TB Internal HDD" " Western HDD - WD10EZEX Desktop Hard Drives CDW.com
"Built to WD's highest standards of quality and reliability, WD Blue offers the features and entry-level capacities that are ideal for your computing needs. WD Blue is designed by the brand that you trust with the quality you would expect for a tested, proven, everyday storage solution." 
 "Western Digital Red 2 TB Internal HDD" " Western HDD - WD20EFRX Desktop Hard Drives CDWG.com
"WD's exclusive NASware technology, built into every WD Red hard drive, improves NAS storage performance by reducing common hard drive concerns in NAS systems including concerns for things like compatibility, integration, upgradeability, reliability and cost of ownership that are experienced with a hard drive designed for desktop computers." 