Synology DiskStation DS923+ 4-bay NAS Storage Enclousure (diskless) - AMD Ryzen R1600 Dual-Core CPU - Up to 32 GB DDR4 ECC Memory - 2x USB 3.2 Gen1 - 1x eSATA Expansion Slot - Dual Gigabit RJ-45 Ports w/ Link Aggregation - 2x M.2 NVMe SSD slots (DS923+)