Original owner Synology 4 Bay NAS DiskStation DS918+. New-ish power supply bought in 2024. 4GB memory (1 slot free), 3 drives totaling 2.7TB of RAID 5. Specifically, drives are 1.5T, 1.5T, and 2.0T. One free slot for another drive. Bays all unlocked (I don't have the plastic lock key). Works great! Has been a server at my home for its life, very rarely accessed.
p.s. I know some people looking for these don't care about the drives, and they add about 4 pounds to the shipping weight, so if you want this driveless contact me and I can change the weight specs. Questions, just ask!