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Title: It DOES work with HCx
Review: I originally thought that this item doesn't work with the HCx, because the battery cover doesn't fit, but like many people said in other reviews, your HCx came with a clip that attaches to the back of the battery cover. I got my HCx used, so it did not have this clip. If you search for "eTrex Mounting Clip Replacement" you should be able to find it though.
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