SA3400D (Dual Controller; Redundant Power Supply) 12-Bay (SAS) / 2U Rackmount / INTEL Xeon D-1541 8-Core 2.1GHz (Up to 2.7GHz) per controller / 8 GB DDR4 ECC UDIMM (up to 64GB ECC UDIMM) per controller / 1 x Mini-SAS Expansion Port / 2 x 1 GbE LAN, 1 x 10GbE RJ45 (10GBase-T) / 1 x PCIe 3.0 x8 Slot for NIC / RAID 0,1,5,6,10, F1 / Hardware Synology High Availability ( Active-Passive Architecture ) / 2 x IP Cam Free Licenses / 5 Years Warranty / Optional Rail Kit Sliding (RKS-02)