The HI-5 was Argon Enterprises' first transport.
It can hover up to 50 meters in the air, using advanced magnetic propulsion. The HI-5 has a small Light Artillery gun on the front. This can move in nearly any direction: Up, down, diagonally either way, all the way around, and so on.
It also has a small Particle shield, and on the bottom (in New Republican times) it is cloaked. This enables the HI-5 to see, yet not be seen from the ground.
The HI-5 holds up to ten troops, standing up. These transports are not space enabled, and so need to be carried.
Some Star Destroyers were modified to carry these by putting magnets in the floors.