Synology Plus Series HDD 12TB, Internal . 3.5″ SATA, 7200RPM ,3-year warranty

Valid on Budget, Value and Plus Series NAS only. It will not support xs and above models
Minimum DSM version requirement: DSM 7.1.1-update 4.
Supported NAS models include:
25 Series – DS225+, DS725+, DS425+, DS925+, DS1525+, DS1825+
23 Series: DS923+, DS723+, DS423+, DS423, DS223, DS223j, DS123
22 Series: RS822+, RS822RP+, RS422+, DS2422+, DS1522+, DVA1622
21 Series: RS1221+, RS1221RP+, DS1821+, DS1621+, DVA3221
20 Series: RS820+, RS820RP+, DS720+, DS420+, DS220+, DS420j, DS120j, DS220j
19 Series: DS119j, DVA3219
18 Series: DS1618+, DS418, DS418j, DS218, DS218play, DS118