With 4,000 GB of storage, this is a good HDD drive if you need a larger storage unit. If you happen to be looking for an external hard drive, this could be just the thing.
From Western Digital
WD 4TB Elements SE - WDBJRT0040BBK-WESN
Gadcet
WD Elements SE 4TB Portable Hard Drive, New
This product is also available at 4 unverified stores.