Model: SNV3410 HDD capacity: 800 TBW: 491 Reading speed: 3000 Writing speed: 750 Random read IOPS (max): 225 Random write IOPS (max): 45 Height: 3.5 Width: 22 Depth: 80 Compatible with: M.2 SSD via M2D18 20 series: RS820RP+, RS820+ 19 series: DS2419+II, DS2419+, DS1819+ Series 18: RS2818RP+, RS2418RP+, RS2418+, DS1618+ M.2 SSD via M2D20 22 series: DS2422+ Series 21: RS2821RP+, RS2421RP+, RS2421+, RS1221RP+, RS1221+ Series 20: RS820RP+, RS820+ Series 19: DS2419+II, DS2419+, DS1819+ Series 18: RS2818RP+, RS2418RP+, RS2418+, DS1618+ M.2 SSD via E10M20-T1 22 series: DS2422+ Series 21: RS2821RP+, RS2421RP+, RS2421+, RS1221RP+, RS1221+ Series 20: RS820RP+, RS820+ Series 19: DS2419+II, DS2419+, DS1819+ Series 18: RS2818RP+, DS1618+ M.2 SSD via internal slot 22 series: DS1522+ 21 Series: DS1821+, DS1621xs+, DS1621+ 20 Series: DS1520+, DS920+, DS720+, DS420+ 19 series: DS1019+ 18 Series: DS918+