A Thunderbolt dock allows you to connect a number of  peripherals, using connection types to your computer, which should also have a Thunderbolt port. A Thunder dock comes for Mac and PC. Using a Thunderbolt Dock, you can run a single Thunderbolt cable from your computer to the dock, which you can put in an accessible place. 

In other words, a Thnderbolt port and Dock system makes any computer use multiple peripherals even without having many ports. The computer needs just a Thunderbolt port.

The best affordable and reliable Thunderbolt dock: Elgato Thunderbolt 2 Dock (durable quality)

The second best Thunderbolt dock: CalDigit Thunderbolt Station 2 (option for vertical orientation, two eSATA ports, a bit pricey) 
 

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