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# Power Port Templates

A template for a power port that will be created on all instantiations of the parent device type or module type. Each power port can be assigned a physical type, as well as a maximum and allocated draw in watts.

Changed in version 2.3.0

This model has been updated to support being installed in Modules through the ModuleType model. As a result, there are now two fields for assignment to a DeviceType or ModuleType. One of the `device_type` or `module_type` fields must be populated but not both. If a `module_type` is supplied, the `device_type` field must be null, and similarly the `module_type` field must be null if a `device_type` is supplied.

Added in version 2.4.15

Power Port Templates include a `power_factor` field for converting between watts (W) and volt-amps (VA) in power calculations.

The power factor represents the ratio of real power (watts) to apparent power (volt-amps) and defaults to 0.95, which is typical for modern server equipment. To find the power factor for your specific equipment, check:

- Power supply datasheets - Look for 80 PLUS certification specifications
- Server management interfaces - iDRAC, iLO, or IPMI may display PSU power factor settings
- Equipment specifications - Listed in the electrical characteristics section

Typical power factor ranges:

- 0.95-0.99: Modern servers with 80 PLUS Platinum/Titanium certified PSUs
- 0.9-0.95: Standard servers with 80 PLUS Gold/Silver/Bronze certification
- 0.5-0.9: Older equipment or basic power supplies without certification

The power factor is used in rack power utilization calculations to accurately convert watts to volt-amps for proper capacity planning. For more information, see the 80 PLUS certification program.