RX1217RP with Redundant Power Supply 12-Bay Expansion / 2U Rackmount / 1 x Infiniband / 5 Years Warranty / Optional Rail Kit Sliding (RKS1317) Supported Models RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, RS3617xs, RS3614xs+, RS3614(RP)xs, RS3413xs+, RS3412(RP)xs, RS3411(RP)xs, RS2818RP+, RS2418(RP)+, RS2416(RP)+, RS2414(RP)+, RS2212(RP)+, RS2211(RP)+, RS1619xs+ * DSM version requirement: 6.0.1-7393 or later version