800 VDC
Direct-current rack distribution for megawatt-class racks that cuts conversion stages and copper versus traditional AC.
Current numbers
v0.7.0OCP Diablo 400 (Mt. Diablo) sidecar-power spec; ±400/800 VDC, ~100 kW to ~1 MW racks
v0.7.0OCP Diablo 400 rack & power base spec edition (v0.7.0, effective 2026-03-01; was v0.5.2 2025-05-30); the ±400/800 VDC sidecar-power transition for >150 kW racks
~600 kWper Rubin Ultra Kyber rack (NVL144 = 144 packages / 576 dies) on 800 VDC