 "Western Digital Red 2 TB Internal HDD" " Western HDD - WD20EFRX Desktop Hard Drives CDW.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." 
 "Western Digital Red 1TB SATA3 64MB Cache 3.5in Internal Hard Disk Drive HDD" "WD 3.5IN NAS - NCIX"
 Quick Specs: Buffer 64 MB Compatibility D-link Share Centers: DNS-1550-04 DNS-1100-04 DNS-1250-04 (US only) DNS-1200-05 DNS-1250-06 (US only) https://www.wdc.com/en/products/products.aspx?id=810 Device Supported Storage System Storage Capacity 1 TB Limited Warranty 3 Year Weight (Approximate) 15.84 oz Drive Type Internal Height 1" Width 4" Depth 5.8" Green Compliant Yes Green Compliance Certificate/Authority RoHS China RoHS WEEE Drive Interface SATA Drive Width 3.5" Drive Interface Standard SATA/600 ProductId 1023016280