The SGI Altix 350 was a server made by Silicon Graphics, Inc., and introduced in 2005. It ran Linux, rather than SGI's own Unix variant, IRIX.
The Altix 350 was scalable from one to thirty-two 64-bit Intel Itanium processors. It featured DDR SDRAM and PCI-X expansion ports, and could support SCSI or SATA internal hard drives. Designed as a rack-mount server, the Altix 350 was 2U, meaning it occupied two slots vertically in a standard server rack.
As of December 2006, the Altix 350 has been superseded by the Altix 450 (based on the Itanium 2) and the Altix XE (based on the Xeon).