HDD recognized but inaccessible

I have a 2 year old 3tb D3 Station from Samsung that, suddenly, won't show up anymore in explorer. Windows gives me the sound that the USB is connected, I can see the D3 station from the Device Manager, and suddenly Windows beeps the noise that indicates something has been ejected, and I can't access it anymore, but the HDD keeps blinking the light, showing me that it is alive.
 
Hi. Have you tried checking in Disk Management if it picks up there? If it is Healthy and has allocated storage? The drive may be end of life. When you plug it in do you hear the disks spinning in the drive or possibly a clicking sound?
 
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