Systems are a hardcore/skramz/post-punk group from North Carolina. To date, they've only released one album, 2011's 'Ghost Medicine'. I noticed they played some shows with Circle Takes the Square, and perhaps some similarities run between the two aesthetically; vocals are often quick and enunciated, blurred in a cacophony of screams and sings. They also have a very strong ambient lining throughout their song writing, though to the former perhaps venture even further from the heart of their sound.
Really cool stuff, definitely spring for the vinyl if available (a few weeks ago they posted on their Facebook that 30 copies remain), definitely worth it for the meticulous artwork alone.
The band is still active, so hopefully their 2nd release isn't far behind.