Silicon Graphics International Corp. (SGI; formerly Rackable Systems, Inc.) was an American manufacturer of computer hardware and software, including high-performance computing systems, x86-based servers for datacenter deployment, and visualization products. The company was founded as Rackable Systems in 1999, but adopted the "SGI" name in 2009 after acquiring Silicon Graphics Inc. out of bankruptcy.
On November 1, 2016, Hewlett Packard Enterprise completed its acquisition of SGI for $275 million.