Specifications
Power Rack
800 VDC In-Row 660 kW power rack developed with NVIDIA for MGX-based AI factories
Power Shelves
Six 110 kW power shelves per rack
Battery Backup
Embedded 80 kW BBU in each shelf — 480 kW total battery backup capacity
AC/DC PSU
New 18.5 kW AC/DC power supply unit with up to 98% energy efficiency
Energy Storage
Aluminum capacitors optimise GPU workloads against high-frequency dynamic distortion
DC/DC Shelf
1RU 90 kW DC/DC power shelf for 800 V to 50 V conversion
Capacitance Shelf
1RU power capacitance shelf with SiC-based eFuse switch
Busbar
Liquid-cooled 50 V busbar for the MGX cabinet, supporting 4,000+ A current capacity
Rack Power
Dedicated up to 1.1 MW per rack for high-density GPU configurations
Cooling
2.4 MW and 3 MW liquid-to-liquid In-Row CDUs ready to cool the NVIDIA MGX platform
Conversion Path
800 VDC to 50 V, then 50 V to 12 V with up to 98.5% DC/DC efficiency
Architecture
Targets 1 MW+ racks under the NVIDIA 800 V HVDC reference design
Microgrid
Scalable microgrid solution with solid-state transformers (SST) and solid-oxide fuel cells
Compatibility
Designed for NVIDIA MGX cabinets and 576-GPU-class racks
Overview
Delta Electronics has developed new 800 VDC In-Row 660 kW Power Racks in collaboration with NVIDIA, targeting next-generation AI factories built on the MGX architecture. Each rack features six 110 kW power shelves with an embedded 80 kW battery backup unit per shelf — 480 kW of total BBU capacity — and is supported by a newly developed 18.5 kW AC/DC power supply unit reaching up to 98% efficiency.
As AI racks move from ~9 kW toward 600 kW and beyond, 800 VDC distribution becomes essential: it cuts in-rack copper, reduces AC-DC conversion losses and enables the multi-megawatt densities of Blackwell-, Vera Rubin- and Rubin-class systems. Delta's solution spans the power shelf, DC/DC conversion, capacitance shelf, SiC eFuse and liquid-cooled busbar, alongside 2.4 MW and 3 MW In-Row CDUs for thermal management.
QS Compute supplies Delta datacentre power racks, power shelves, PSUs, BBUs, CDUs and microgrid components to AI-factory operators, colocation providers and system integrators, with volume pricing and integration support.
Key Benefits
660 kW per in-row rack with 480 kW embedded battery backup. 98% AC/DC efficiency and up to 98.5% DC/DC. NVIDIA MGX-aligned 800 VDC architecture. SiC eFuse and liquid-cooled busbar for reliability at 4,000+ A. Integrated thermal via 2.4/3 MW In-Row CDUs.
Applications
AI-factory and hyperscale datacentre power distribution; NVIDIA MGX 576-GPU-class racks; 800 V HVDC retrofit and new-build deployments; buffered GPU workload smoothing with embedded BBUs; microgrid and on-site generation integration; colocation high-density power provisioning.
Request a Quote — DELTA 800 VDC IN-ROW 660 KW POWER RACK — AI FACTORY POWER FOR NVIDIA MGX
QS Compute — global B2B supply of AI computing hardware, edge AI systems and accelerators. Volume pricing, 15-day sample lead time.
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