Synology 4-Bay DS425+ DiskStation

CPU: Intel Celeron J4125 Quad core 2.0 (base) / 2.7 (turbo) GHz
System Memory: 2GB DDR4 non-ECC
Drive Bays: 4
1 x 2.5GbE and 1 x 1GbE RJ-45 ports
Built-in M.2 NVMe slots for SSD cache
Upgradable memory capacity
2-year Hardware Warranty by Synology