Power strips are used in applications where multiple AC outlets are needed, often without surge or line noise protection. Power strips can lie on the ground, or be mounted on a rack, walls, workbenches, etc.  Other mounting types include modular or desktop, monitor shelf, cabinet or cabinet mount, vertical mount, and hardwire mount.  It is important to consider the number of electrical outlets necessary for specific applications.  This number also refers to number of outputs if not in the form of AC outlets.  The outlet can be configured into a number of different styles.  These include NEMA, IEC European standards, CEE European standards, or JIS Japanese standards.