Each Hub comes with a 5V power supply and setup instructions for pairing up to ten 10 Access Point Monitors (APMs).  Add additional Hubs to your account for monitoring a second home or commercial properties with high numbers of access points.  Hubs can be placed on a flat surface or mounted vertically to a wall with standard screws and wall anchors (not included).  Product dimensions - 4-7/16" wide X 3-3/16" deep X 1-1/8" tall (not including antenna).