Hot on the heels of its win against Mac clone-maker Psystar, Apple is suing another company that's making knockoffs of its products, but this time its power adapters.

Apple filed the lawsuit against Media Solutions Holdings in the California Central District Court on Monday, according to InformationWeek. Apple claims the power adapters violate a patent the company holds on the design of its own adapters.

The power adapters in question come with Apple's MacBook and MacBook Pro line of notebooks. Apple also sells the adapters separately for $79¹⁾ from its online and retail stores.

While several of Media Solutions Holdings Web sites, including Laptopsforless.com, Laptopacadapter.com, and Ereplacements.com, have Apple replacement parts in stock, none currently has the power adapter in question when CNET checked on Friday.

Media Solutions Holdings sells replacement parts for many of today's popular brands of computers like Sony, Toshiba, Lenovo, Acer and HP, among others.

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