For as long as portable computers have existed, professionals have faced a quiet compromise: the freedom to move, or the power to create at the highest level. Sonnet's Breakaway Box 850 T5 enters that tension as a kind of reconciliation — an external GPU enclosure that connects a Windows 11 laptop to desktop-class graphics performance through a single Thunderbolt 5 cable, while simultaneously serving as a full peripheral dock. It is a device that asks whether mobility and power were ever truly opposites, or simply problems awaiting a sufficiently elegant cable.