Stargates

Stargates are a piece of technology that are used to transport people and items across the galaxy through interconnected wormholes.

Galvan
These Stargate have the greatest range, are capable of opening wormholes to gates that have an established wormhole already open and are capable of opening Space/Ground Bridges to planets that do not have a Stargate on it's surface. Due to being the most advanced Stargates in the galaxy/universe they are capable of multiversal/omniversal travel between dimensions and have a one-way shielding system that let's only specific people and things through. Galvan tech, like the Omnimatrix, can interface with these types of gates and these can be dialed manually without the need of a DHD. Computers are also able to interface with these types of gates. Also these gates can be voice-commanded, much like how the Omnimatrix's voice command code, due to having an AI of it's own. They have L.E.D. Monitors on the Cheverons that indicate what's symbol the Cheverons have dialed up at the moment and have a middle ring that glows and the symbols have L.E.D. lights built into them that light up when the gate is active and when the gate is dialed up from another planet the middle ring spins, and continues to spin, while all the displays gradually fill out the address of the incoming wormhole address. The Cheverons also light up when an address is being dialed in, letting the user know what Cheverons are active. These gates are made of an indestructible nanotechnology material allowing it to self repair. These can be outfitted with an Iris alongside the default shield system.

Milky Way Model
These gates can be dialed with a computer or DHD and has the least range when compared to it's later model. They can be dialed manually along as power is supplied to them. These gates have a far lesser range than it's later successor. These can be equipped with an Iris.

Pegasus Model
The successor to the Milky Way Model, these gates use a hologram symbol system that and can only be dialed using a DHD and typically use a shield system far less advance than the Galvan built gates. These can go to much farther planets than the Milky Way model.

Universe Model
These gates are less powerful than the Milky Way Model, essentially they are only able to dial gates on planets that they are in orbit of. These are more like ship based Stargates.