The Proton200k is a high-speed, space-qualified, radiation-hardened single-board computer based on a Texas Instruments DSP. The Proton200k is produced by Space Micro Inc, a designer and manufacturer of radiation hardened electronics for space applications. The Proton200k was originally developed under Phase I and Phase II SBIR contracts. The Proton200k displays processing speeds of 900 MFLOPS or 4000 MIPS while operating at 5 watts. It is radiation hardened to a total ionizing dose greater than 100 krad(Si) and fewer than 1 single event upset per 1000 days. Space Micro Inc also offers a triple-core version of the Proton200k.
In 2006, the Proton200k space computer was selected for Air Force Research Laboratory's (AFRL) Autonomous Nanosatellite Guardian Evaluating Local Space (ANGELS) satellite program.