Synology RackStation RS2821RP+ 16Bays NAS(up to 28-bay),RAM 4GB(Up to 32GB)Redundant power

-CPU Model : AMD Ryzen V1500B
-CPU Quantity : 1
-CPU Architecture : 64-bit
-CPU Frequency : 4-core 2.2 GHz
-System Memory : 4 GB DDR4 ECC UDIMM
-Memory Module Pre-installed : 4 GB (4 GB x 1)
-Total Memory Slots : 2
-Maximum Memory Capacity : 32 GB (16 GB x 2)
-Drive Bays : 16Bays
-Maximum Drive Bays with Expansion Unit : 28 (RX1217/RX1217RP x 1)
-Compatible Drive Type* : 3.5" SATA HDD, 2.5" SATA HDD,2.5" SATA SSD
-RJ-45 1GbE LAN Port : 4 (with Link Aggregation / Failover support)
-USB 3.2 Gen 1 Port* : 2
-Expansion Port : 1
-PCIe Expansion :1 x Gen3 x8 slot (x4 link)

-Maximum Single Volume Size: 108TB

-Redundant Power Supply
-Warranty : 3Years