WD My Book 4TB External Hard Drive (8.9 cm (3.5 inches), USB 3.0) Black (Personal Computers)
As always top WD -Leise -Not So fast but in the contrary of too rapid HDD #s of competitors and fewer failures! -Have 7 this HDD # s going to stay even with the size, rather spread the data across multiple FP! -In Nas to use well, if he does not run