Synology DiskStation DS1821+ 8-Bay NAS Enclosure (DS1821+) - AMD Ryzen V1500B Processor (32M Cache, 2.20 GHz, 4 cores), 4GB DDR4 ECC RAM (1 x 4GB, 1 slot free, 32GB Max), 8 x 3.5" or 2.5" SATA HDD/SSD / 2 x M.2 2280 NVMe SSD Bays (108TB Max), Supported RAID Types: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, Connectivity: 4 x USB 3.2 Gen 1, 4 x 1GbE RJ-45, 2 x eSATA Expansion Port, 250W Power Supply, Weight: 6 kg