SA6400 (Redundant Power Supply)
12-Bay (SATA) / 2U Rackmount / AMD EPYC™ 7272 / 12-Core 2.9GHz (Up to 3.2GHz) / 32GB DDR4 ECC RDIMM (up to 1024GB ECC RDIMM*) / 2 x USB 3.2 Gen. 1, 8 x Expansion / 2 x 10GBase-T, 4 x Gigabit LAN ( Data transfer ), 1 x Gigabit LAN ( Out of band management and data transfer ) / 2 x PCIe x8 Slot for NIC / RAID 0,1,5,6,10,F1 / Synology High Availability / 2 x IP Cam Free Licenses / 5 Years Warranty / Optional Rail Kit Sliding (RKS-02)
** Supports Specific HDD or SSD ONLY
https://www.synology.com/en-us/compatibility?search_by=products&model=SA6400&category=hdds_no_ssd_trim&p=1&change_log_p=1