This is an upgrade of AKiTiO Thunder Dock to the Thunderbolt™ 2 version.
The Thunder2 dock links past, present and future technology to your computer with just one Thunderbolt™ cable. The Thunder2 Dock allows you to access your data on both legacy and future storage drives by providing multiple host ports for USB 3.0, FireWire 800, and eSATA (two of them, each by a dedicated controller). It also has two Thunderbolt ports for daisy chaining additional Thunderbolt™ devices and storage, or even a 4K monitor in the downstream.

Features:
Two Thunderbolt™ ports for lightning fast speeds up to 20Gb/s
Daisy chain up to 6 Thunderbolt™ (and/or Thunderbolt™ 2) devices plus one 4K monitor.
Two eSATA host ports (up to 6Gb/s)
One 7 watt bus-powered FireWire 800 host port
Two bus-powered USB 3.0 host ports (supports UASP)
Durable and rugged aluminum casin