First 3TB drive is here

[Arthur]

World's First 3TB HDD, by Seagate

But the monster is in external version only. Why?

Seagate Technology LLC announced the world’s first 3 Terabyte external desktop drive.

... more.

 

[Valerion]

As noted in the comments at the bottom most 32-bit OS's (including Windows 7 32-bit) doesn't have support for sizes beyond 2.1TB.

USB 3.0. Nice. I may get one of these soon.