The 2300AD box set contains:

Book 1 - Characters & Equipment: Everything you need to create explorers, company agents, military personnel, merchants and other inhabitants of 2300AD. This book also contains a comprehensive equipment guide, personal augmentations, and a selection of robots and drones commonly used in space and on colony worlds.

Book 2 - The Worlds of 2300AD: An exploration of the universe of 2300AD, from the Core worlds to the furthest colonies.

Book 3 - Vehicles & Spacecraft: A full guide to operating and fighting in spacecraft and vehicles, from humble dirt bikes to powerful spacegoing frigates.

Starchart of Known Space: A massive poster map depicting every star system known to humanity and the routes starships take to each.

Requires the Traveller Core Rulebook.