US Patent 10139926 Magnetic retention of peripheral device for a tablet computer

A peripheral device for a computing device comprises a body configured for insertion into a storage cavity in the computing device, a first magnet, and a second magnet. The first magnet is disposed within the body proximate a first external surface of the body and having a first pole of a first polarity and a second pole of a second polarity, wherein the first pole is oriented toward the first external surface. The second magnet is disposed within the body between a second external surface and the first magnet and having a first pole of the first polarity and a second pole of the second polarity, wherein the first pole of the second magnet is oriented toward the second external surface.