Thunderbolt Universal Hub for MacBook Pro 13" and 15". For all users of the Apple MacBook Pro suffering from the connectivity limitations of the 2016 model, this practical accessory from Satechi offers a tidy and versatile solution. Its aluminum casing fits almost seamlessly onto the two Thunderbolt ports and provides a wide range of connection options for additional devices. In addition to the external HDMI port (4K), there is an SD and a Micro-SD slot, a pass-through Thunderbolt port, two standard USB ports (3.0), and a modern USB-C port. On the larger 15-inch model, you can even connect two of the extremely practical Satechi hubs by simply flipping one over.