DEM Solutions' 800V power protection lineup is purpose-built for the extreme demands of AI training infrastructure like NVIDIA Vera Rubin racks. The 800V CBU (Capacitor Backup Unit) uses supercapacitor technology to absorb microsecond-level surges and GPU inrush current before they reach sensitive hardware, while the 800V Immersion Cooled BBU (Battery Backup Unit) delivers sustained, thermally-managed backup power to bridge the gap until generators or grid power return. Combined into our CBU + Immersion BBU Hybrid Solution, the two work as a single integrated system — instantaneous protection plus sustained backup — in just 1U of additional rack space, delivering 99.999% availability, extending battery life by up to 30%, and paying for itself in as little as 3 months through peak power shaving. Together, they form a complete, plug-and-play power smoothing and backup architecture for next-generation AI data centers.