Promise Technology Pegasus J4 Quick Start Manual page 9

M T
AKE THE HUNDERBOLT CONNECTION
Connect a Thunderbolt cable to either of the Thunderbolt ports on the back
of the Pegasus J4, and connect the other end of the cable to a Thunderbolt
port on your computer. The unused Thunderbolt port on the J4 can be used to
connect to another J4 or a monitor.
7
Important
Make sure the Thunderbolt cable connector is oriented
properly to be inserted into the Thunderbolt port.