Robus build quality - made of metal alloy with delicate black coating. Cutouts for most interfaces and connectors. Easily readable labelling. ^^ Easy assembly process. Scan the QR code on the packaging to access step-by-step assembly instructions. ^^ Compatible with all BEVRLink 8-Channel Relay Modules. Supports DIN Rail Mount Clips. Expandable design - you can attatch this case with other BEVRLink cases and manager boards. ^^ Designed to support the BEVRLink ecosystem of relays and manager boards to manage projects delicately.