The OWC TB2 aluminum USB 3.1 drive dock is a nifty fanless drive tool that lets you hot-swap, boot and access 2.5-inch and 3.5-inch SATA hard drives (HDDs) and solid state drives (SSDs) just like removable memory sticks at the speed of Thunderbolt 2! You can run two SATA 6Gb/s drives simultaneously off the OWC drive dock, either wo 3.5-inch drives or two 2.5-inch  drives.
As well as Thunderbolt 2 (a.k.a. TB2), the OWC drive dock features USB 3.1 Gen 1, making the OWC drive dock a very versatile into plug-and-play storage with raw throughput performance.
With the integration of Thunderbolt 2, the OWC drive dock doesn't suffer from bus saturation that you get with even USB 3.0 enclosures when using multiple drives at the same time to backup a large library.
The ports on the back of the OWC drive dock include two Thunderbolt 2 ports with up to 20Gbps speeds and one USB 3.1 Gen 1 port supported by ASMedia ASM1153E USB-to-SATA bridge chipsets with up to speeds of 5Gbps.
With the OWC drive dock, you can do disk intensive computing with non-linear video editing software programs such as dragging multiple clips from multiple drives into the timeline without freezing the system to a painful standstill.
Better still, you can simultaneously run applications from the drives without worrying about loading the bus or crashing the system thanks to hot swapping software built-in (Thunderbolt connection only) that lets you plug and unplug drives without shutting down the system.
You can also the OWC drive dock as a bootable tool, allowing you to create a system image recovery backup on a SATA drive to clone your computer's hard drive so you can restore your personal data and Windows files.
Each bay on the OWC drive dock has its own power switch and LED activity monitor and you can expand the OWC drive dock in a daisy-chain with up to five additional Thunderbolt devices.
The OWC TB2 drive dock also integrates a universal auto-switching internal power supply, which means you use any 3 prong or 2 prong AC power cable to power the OWC drive dock. This great as it means you can power the OWC drive dock anywhere in the world via a travel adapter without the need of a bulky AC adapter (or as some people call it "wall wart").
You can run the OWC Thunderbolt 2 USB 3.1 Gen 1 drive dock via a Mac or PC with a Thunderbolt or USB 2.0 interface but you get the best performance if your Mac or PC has Thunderbolt 2 or USB 3.0 interface.
You won't require a driver for Mac OS X but you will need a driver when connected to a Windows computer via Thunderbolt connection. There are other software and hardware requirements. The operating system requirement for Thunderbolt is Mac OS X 10.10 or later, or Windows 7 SP1 or later. The operating system requirement for USB 3.1 Gen 1 is Mac OS X 10.6 or later, Windows XP or later, and Linux Kernel v. 2.6.31 or later.
To take advantage of UASP, your PC hardware, firmware and the software drivers in your operating system must support it. If you are using Windows 8 and Windows 10, UASP support is built-in. Most manufacturers don't support UASP in Windows 7 other than ASUS who is the only manufacturer that supports UASP in Windows 7 on certain Asus motherboards (i.e. Z77-, X79-, Z68-, 990FX/990X/970-) via Asus USB 3.0 Boost application.