I recently purchased this hard drive for my UGREEN NASync DXP4800 Plus NAS, and it has been an excellent upgrade. The actual usable storage is about 27TB, which already feels like a huge relief after being squeezed for space across all my devices. I was down to barely 2GB free between my 1TB laptop, 2TB external drive, and around 3TB combined in cloud storage on Google Drive and OneDrive. Now I finally have room to organize and expand my files without constantly deleting or moving things around. The drive runs smoothly and delivers great performance in a NAS environment. Installation was easy and the NAS recognized the drive immediately. Access speeds have been fast and reliable during backups, media streaming and file transfers. The build quality feels solid and it stays cool even under continuous use. If you are looking for a high capacity drive that performs flawlessly in a UGREEN NAS, this model is a perfect match. I am very satisfied with the purchase and definitely recommend it to anyone needing serious storage space.