Home NAS has always been a dilemma in various aspects, and I have never been very satisfied with the hardware.
For the sake of convenience, ease of use, and energy conservation, the following are the solutions I am currently using and have previously used.
NAS05 : Synology DS415
Power consumption : 45W
CPU : Intel Atom C2538
RAM : 8G
HDD : WD 18T * 4
NAS04 : Acer C100F
Power consumption : 29W
CPU : Intel I3 4360T
RAM : ECC DDR3 1600 8G * 2
HDD : WD 8T * 4
NAS03 : HP ProLiant MicroServer Gen8
Power consumption : 45W
CPU:Intel E3 1220L
RAM : ECC DDR3 1600 8G * 2
HDD : WD 16T * 4
NAS02 : HP ProLiant MicroServer Gen7 N54L (Retired)
Power consumption : 48W
CPU : AMD Turion II Neo 2.2GHz
RAM : DDR3 1600 8G * 2
HDD : WD 2T * 5
NAS01 : DIY (Retired)
Power consumption : 28W
CPU : Intel D510
RAM : DDR2 800 2G * 2
HDD : WD 2T * 2