The Extron CPM101MK is a MAAP™ Mini AV Connectivity Module mounting frame designed to mount in one-gang MK-type junction boxes and enclosures used in the United Kingdom, Middle East, Singapore, Hong Kong, and other world markets. It accommodates Extron 55mm modules and features an opening that holds up to three single-space MAAP modules. Available in black. Dimensions: 3.35" x 3.35" x 0.1" (8.5 x 8.5 x 0.25 cm).