Cases for portable electronic devices are described including multiple alignment elements (e.g. slugs, magnets or physical securing means) embedded in a panel, such as the back panel of the case. Various accessories, such as stands, cord spools, mounts, communication devices, speakers, displays, etc., may also have multiple corresponding alignment elements (e.g. magnets, slugs or cooperative physical securing means) in them that allow the accessories to be semi-securely attached to the case in a plurality of specific positions and/or orientations.