Data Robotics started the week off with two major upgrades to its Drobo external drives. The Drobo S adds a fifth bay that gives it even more room (up to 10TB) and dual-drive redundancy that lets owners lose two drives at once without facing actual data loss. It further brings the first use of eSATA to give primarily Windows-based PCs a fast alternative to the normally more Mac-friendly FireWire 800 and universal but slower USB 2.0 ports.