2X WD Red 1TB Hard Drive, NAS, SATA 6Gb/s 64MB NAS, 3.5" (WD10EFRX)
2X WD Red 1To, Hard Drive, NAS, 5400 RPM, SATA 6Gb/s 64MB NAS, 3.5" (WD10EFRX). Model: WD10EFRX. Compatible with Synology NAS. Series Red 1TB SATA 6Gb/s (SATA III). 2X Western Digital RED 1Tb. Only used for 3 month.