Preproduction hardware used for validation.

Device drawing controlled electrical power for testing supplies.

Motherboard pins connecting case buttons and indicator LEDs.

Firmware section responsible for early startup operations.

Production hardware intended for normal customers.

Artificial load used to test power sources.

Motherboard pins connected to the case power button.

Process of replacing or modifying device firmware.

Manufacturer's example hardware design.

Reusable board for prototyping electronic circuits without soldering.