Amazon.com: i7 840qm

Stone Power 230W Replacement AC Adapter for HP Compaq 8540w i7 840QM 15.6 500/4GB PC, HP Compaq 8540w i7 840QM 15.6 250/8GB PC, HP Compaq 8540w i7 820QM 15.6 160/4GB PC, HP Compaq 8540w i7 740QM 15.6 500/4GB PC, 100% ...

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