Synology DiskStation DS1621+,Tower,6-Bay 3.5'' SATA HDD/SSD, 2 x M.2 2280 NVMe SSD, CPU AMD Ryzen Quad-Core 2.2 GHz, 4 GB DDR4, 4 x RJ-45 1 GbE LAN, 3 x USB 3.0, 2 x eSATA (Expandable to 16 Bays with 2 x DX517), 1 x Gen3 x8 PCIe,5.1kg, 3y warranty