Synology RS822+ 4-bay RackStation (up to 8-bay), 2GB RAM (up to 32 GB) -CPU Model:AMD Ryzen V1500B -CPU Frequency: 4-core 2.2 GHz -System Memory: 2 GB DDR4 ECC SODIMM -Memory Module Pre-installed: 2 GB (2 GB x 1) -Total Memory Slots: 2 -Maximum Memory Capacity: 32 GB (16 GB x 2) -Drive Bays: 4(Up to 8Bays) -Compatible Drive Type*: 3.5" SATA HDD, 2.5" SATA SSD -RJ-45 1GbE LAN Port*: 4 (with Link Aggregation / Failover support) -USB 3.2 Gen 1 Port*: 2 -eSATA Port: 1 -PCIe Expansion: 1 x Gen3 x8 slot (x4 link) -Warranty: 3Years