For the project, the social network is publishing specs and designs for its motherboards, power supply, server chassis and more.

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"We've retooled our latest Aspire desktops to deliver ample power and practical features in a stylish, understated chassis that will appeal to a wide range of users, " said Irene Chan, senior business manager of consumer desktops for Acer America.

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There's nowhere in the chassis to slot the pen in, but it does clip magnetically on to the power connector.

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