SST · Solid-State Transformer
Solid-state transformer/power-electronics conversion from medium voltage toward a rack DC bus. About 98% is a named 400 kW prototype result; about 99% is a target, not a general shipping-product efficiency. Preserve topology, load point, voltage, and measurement boundary.
Power-electronics conversion integrating transformer isolation and voltage conversion; compare efficiency only for a named topology, rating, load point, voltage range, and measurement boundary.
Also written as: Solid-State Transformer
Current numbers
~Q2 2026targeted UL listing for the first SST in NVIDIA's MGX reference (DG Matrix)
~87% vs ~82% ACend-to-end electrical-chain efficiency, 800VDC/SST chain vs a typical AC path (utility-to-VRM) — a system gain only co-design captures
~98%solid-state transformer efficiency at 400 kW (13.2 kVAC → 800 VDC); ~99% targeted