From Wookieepedia, the Star Wars wiki.

You may have seen me elsewhere on the web. I'm a member of over a dozen websites. Some websites I don't even remember if I'm a member of. If I stuble across a website I try to log in with my user name and my password just to see if I am a member of that site.

Star Wars rules.

Wanting to know what the different color Magnaguards specalize in.

"Holowan Mechanicals made several MagnaGuard models, distinguished by color: black, alabaster blue and the rare grey. Each two-meter-tall droid specializes in a form of combat."