Founded by Geoff Barrall, Julian Terry, and Ken Rosen in 2005 in San Jose, California, Drobo Inc, is a computer hardware manufacturer. The company distributes a series of external storage devices divided into three main categories including network-attached storage (NAS), direct attached storage (DAS), and storage area network (SAN). All of their products under these categories are a part of their main product line named Drobo. All products designed under this line can accommodate 4-12 Serial ATA or Serial Attached SCSI hard disk drives. These products can also connect with PCs or networks via USB 2.0/3.0, FireWire, eSATA, Thunderbolt or Gigabit Ethernet.