Acer TravelMate P653-V - Manual (Page 66)

Thunderbolt 46
Englis
h
Thunderbolt
Thunderbolt is a high-speed connection that supports storage devices as
well as external displays. It is compatible with the DisplayPort standard.
Note: Up to six Thunderbolt devices and one DisplayPort display can
be daisy-chained, however, the DisplayPort display will be the last
device in the chain, and it cannot be preceeded by a Thunderbolt
display.