 "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." 
 "HDD Desk Red Pro 4TB 3.5 SATA 128MB"@es "TPV Punto de Venta Tu tienda online líder con precios más baratos! "@es
"WD Red Pro NAS Hard Drive WD4002FFWX - Disco duro - 4 TB - interno - 3.5" - SATA 6Gb/s - 7200 rpm - búfer: 128 MB"@es 