Synology RackStation RS2821RP+, Rack 3U, 16-Bay 3.5''/2.5" SATA HDD/SSD, AMD Ryzen V1500B 4-core 2.2 GHz, 4 GB DDR4 ECC UDIMM, 4x RJ-45 1GbE LAN Port; 2x USB 3.2 Gen1; eSATA port; 17.7 kg; 3yr warranty