Metal housing, space for 3 connection cards. Dimensions (LxWxH) 128x167x38mm. Adapted to most Fatum series connection cards. Intended for 1-3 pcs of connection cards with dimensions of 116x40mm, or 1 connection card with dimensions of 116x80mm. Complete with spacer kit, 12.7mm, (4 x spacers, dowels and screws).