Power · Rack Power

800V Rack Power for High-Density AI

800V Rack Power for High-Density AI

800V Rack Power for High-Density AI

Power distribution, AC-DC and DC-DC conversion, and battery backup built for the 800V DC architecture behind next-generation AI racks.

Power distribution, AC-DC and DC-DC conversion, and battery backup built for the 800V DC architecture behind next-generation AI racks.

Power distribution, AC-DC and DC-DC conversion, and battery backup built for the 800V DC architecture behind next-generation AI racks.

Request a Rack Power Quote

The density problem

AI racks have outgrown traditional power

AI racks have outgrown traditional power

AI racks have outgrown traditional power

As rack densities climb past 100 kW, conventional low-voltage distribution needs more copper, more conversion stages, and more space just to get power to the servers.

As rack densities climb past 100 kW, conventional low-voltage distribution needs more copper, more conversion stages, and more space just to get power to the servers.

As rack densities climb past 100 kW, conventional low-voltage distribution needs more copper, more conversion stages, and more space just to get power to the servers.

An 800V DC architecture moves more power over less copper with fewer conversions, leaving more of the rack for compute.

An 800V DC architecture moves more power over less copper with fewer conversions, leaving more of the rack for compute.

An 800V DC architecture moves more power over less copper with fewer conversions, leaving more of the rack for compute.

Why 800V

Built for the next generation of AI racks

Built for the next generation of AI racks

Built for the next generation of AI racks

Higher power per rack

Shelf ratings up to 110 kW, with distribution up to 400 kW.

Fewer conversion losses

DC-DC conversion at up to 98% peak efficiency.

Compact footprint

1RU and 3RU form factors keep power equipment out of the way of compute.

Built-in ride-through

Battery backup shelves carry critical loads through short outages and transients.

Applications

Where 800V rack power fits

Where 800V rack power fits

Where 800V rack power fits

AI training clusters

High-density GPU racks that need more power in every rack position.

HPC and dense compute

Compute-heavy workloads where every rack unit counts.

Networking and storage

Supporting systems that share the same power architecture as your AI compute.

Product lineup

Four building blocks for 800V rack power

Four building blocks for 800V rack power

Four building blocks for 800V rack power

Each unit covers one part of the power path, from distribution to conversion to backup. Use them together or on their own.

Each unit covers one part of the power path, from distribution to conversion to backup. Use them together or on their own.

Each unit covers one part of the power path, from distribution to conversion to backup. Use them together or on their own.

Power distribution

800V PDU

Distributes 800V DC power across the rack, splitting one high-current feed into four fused outputs.

Output power

400 kW

Input

1 × 500 A DC

Output

4 × 125 A DC

Protection

4 DC fuse boxes

Form factor

3RU

Dimensions

827 × 438 × 132.5 mm

Operating temp.

−5 to 45 °C

Request a PDU quote

AC-DC for 54V racks

110 kW Power Shelf

Converts three-phase AC into 54V DC for today’s 54V AI racks, with six 18.3 kW power supply modules in one shelf. A practical bridge while your site moves to 800V.

Output power

110 kW

Input

346–480 Vac L-L, 3L + PE, 2 × AC feeds

Output

54 V / 2,040 A

Communication

PMBus

Form factor

3RU

Dimensions

880 × 438 × 131.4 mm

Operating temp.

−5 to 45 °C

Request a Power Shelf quote

DC-DC conversion

800V DC-DC Shelf

Steps 800V DC down to 54V DC at the rack, at up to 98% peak efficiency.

Output power

90 kW

Input

800 VDC

Output

54 VDC

Peak efficiency

Up to 98%

Communication

PMBus (100 / 400 kHz)

Form factor

1RU

Dimensions

43.6 × 438 × 830 mm

Operating temp.

−5 to 45 °C

Request an 800V DC-DC Shelf quote

Battery backup

110 kW BBU Shelf

Keeps critical loads running through power interruptions and transients, with five 22 kW battery modules on the 800V bus.

Output power

110 kW

Input

800 V / 250 A

Output

800 V / 250 A

Communication

Modbus / CAN

Form factor

3RU

Dimensions

880 × 438 × 131.4 mm

Operating temp.

0 to 40 °C

Request a BBU Shelf quote

Specifications shown are nominal. Contact us for full datasheets, lead times, and configuration options.

Certifications and compliance

Designed to recognized power and battery safety standards

Designed to recognized power and battery safety standards

Designed to recognized power and battery safety standards

Power supply

UL / IEC 62368-1

Safety of AC-DC power shelves and power electronics

Conversion

IEC 62477-1

Safety of high-voltage DC power conversion equipment

Battery

UL 1973

Stationary batteries for backup power

Battery

UN 38.3

Safe transport of lithium-ion battery modules

Electronics

FCC Part 15 Class A

Electromagnetic compatibility

Certifications vary by product and configuration. Certificates and listing numbers are available on request.

Your single point of contact

One partner from spec to startup

One partner from spec to startup

One partner from spec to startup

ASpeed AI Power supplies the rack power equipment and manages the project. Where installation, commissioning, or maintenance is needed, our service network takes care of it — with ASpeed AI Power as your single point of contact throughout.

ASpeed AI Power supplies the rack power equipment and manages the project. Where installation, commissioning, or maintenance is needed, our service network takes care of it — with ASpeed AI Power as your single point of contact throughout.

ASpeed AI Power supplies the rack power equipment and manages the project. Where installation, commissioning, or maintenance is needed, our service network takes care of it — with ASpeed AI Power as your single point of contact throughout.

Managed by ASpeed AI Power

Specification and quote

Equipment and delivery

Installation and commissioning

Maintenance and support

How it works

From requirements to handoff

From requirements to handoff

From requirements to handoff

01

Share requirements

Your rack densities, input power, backup runtime, and timeline.

01

02

Get recommendations

Rack power configurations with pricing and lead times.

02

03

Delivery and startup

Delivery, installation, and commissioning through our service network.

03

04

Stay connected

Your ASpeed AI Power contact stays with the project through handoff.

04

Planning cooling for the same racks?

Pair 800V rack power with liquid cooling sized for the same densities.

Explore Liquid Cooling

Plan your rack power

Plan your rack power

Plan your rack power

Tell us your rack densities and power architecture. We’ll come back with options.

Tell us your rack densities and power architecture. We’ll come back with options.

Tell us your rack densities and power architecture. We’ll come back with options.

Request a Quote