Synology DS925NEO+ 4 Bay DiskStation NAS - Non-ECC RAM Option

4-bay desktop NAS AMD Ryzen V1500B 4-core / 8-thread processor 4 GB DDR4 non-ECC SODIMM memory (expandable to 32 GB) Up to 536 / 557 MB/s sequential read/write throughput Dual 2.5GbE RJ-45 network ports Supports SSD cache and M.2 NVMe SSD storage pools Two built-in M.2 2280 NVMe SSD slots Expandable up to 9 drive bays with Synology DX525 expansion unit Supports up to 216 TB raw capacity (with expansion)