The Linear EPS Module is a low-cost Electrical Power System (EPS) with 10-20Wh of battery energy. It is designed to power a CubeSat stack of modules during development, and provides attached modules with +7.4Vdc (nominal), +5Vdc and +3.3Vdc rails. Recharging is via the built-in microUSB connector or from system +5V_USB. A three-segment LED bargraph is used to indicate progress when in charging mode and State-of-Charge (SOC) when in discharging mode. An optional extra battery doubles its energy capacity from 10Wh to 20Wh.

The Linear EPS Rev E and later includes a complete command and telemetry interface over I2C via its onboard SupMCU.

The Linear EPS it is not intended for use in space, and has no solar panel interface.