Silver Stone Hela Series 1200R ATX 1200W Power Supply - Black

Rated output

Efficiency

PSU format

Cable layout

Power for the Complete Configuration

The unit is rated for 1200 W continuous output. Choose the supply around the complete system’s power requirements, including the processor, graphics card, drives and expansion hardware. The output rating describes its supply capacity; the actual power drawn by the computer depends on the installed components and the workload. Check both the power requirement and the required connectors when planning an upgrade.

Cybenetics Platinum Efficiency

Cybenetics Platinum certification describes the power supply’s conversion efficiency under the certification test conditions. It complements the model’s output rating when selecting a supply for the intended system. Efficiency varies with input conditions and load, so the certification should be read alongside the electrical ratings and the complete configuration rather than as a fixed efficiency at every operating point.

Connections Chosen for This Model

The fully modular cable layout lets you connect the leads required by the installed hardware and keep unused leads outside the case. The fully modular design supports a 12VHPWR PCIe graphics-power connection under the Intel ATX 3.0 standard. Match the complete supplied cable set with the motherboard, processor, graphics card and drive connections required by the build. Use the appropriate motherboard, CPU and graphics connections for each component. Keep the PSU’s own modular cable set with the unit, and use replacement leads only when the manufacturer confirms compatibility with this exact PSU and cable interface.

Continuous Output at 50°C

Continuous output is rated for operation at 50°C. Leave the case’s PSU intake and exhaust routes clear and position the supply according to the case guidance. Fan speed and operating noise depend on the system load, temperature and airflow around the enclosure. A low-load fan-stop mode, where provided, works as part of that control behaviour rather than guaranteeing silent operation in every workload.

Check the Case and Cable Clearance

This model uses the ATX mounting format. Match the PSU bay, mounting points and cable-routing space with the case before installation. Account for the connected plugs and their routing space as well as the metal enclosure itself. Arrange the cables so that the case panel can close without placing strain on the connections, and retain access to the power switch and AC inlet in the finished system.

Model

SilverStone HELA 1200R Platinum

Rated output

1200 W continuous output

Efficiency certification

Cybenetics Platinum

What is the rated output?

1200 W continuous output.

Which efficiency certification does it have?

Cybenetics Platinum.

How do I check case compatibility?

This model uses the ATX mounting format. Match the PSU bay, mounting points and cable-routing space with the case before installation.

What power connections are available?

The fully modular design supports a 12VHPWR PCIe graphics-power connection under the Intel ATX 3.0 standard. Match the complete supplied cable set with the motherboard, processor, graphics card and drive connections required by the build.

Can modular cables be shared between different PSUs?

Only use a replacement cable when its manufacturer confirms compatibility with this exact PSU and cable interface. Keep the unit’s supplied modular cable set with the PSU.