WD Red™ Plus - 2TB,WD Red 8TB NAS Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD80EFZX,WD RED PLUS WD40EFZX 4TB 5.4K 128MB SATA III NASware 3.0 NX HA510 3.5,WD Red 8TB SMR or CMR - 2020 model wd80efax-68knbn0 Googled around but not sure. : r/DataHoarder,Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5,