motherboard
US /ˈmʌð.ɚ.bɔːrd/
UK /ˈmʌð.ɚ.bɔːrd/

1.
placa base, placa madre
a printed circuit board containing the main components of a computer or other electronic device, with connectors for other circuit boards to be plugged in.
:
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The CPU is installed directly onto the motherboard.
La CPU se instala directamente en la placa base.
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Upgrading the motherboard can significantly improve computer performance.
Actualizar la placa base puede mejorar significativamente el rendimiento del ordenador.