The Sonoff DR is a specialized mounting tray designed to help you organize and secure various Sonoff smart modules within an electrical panel. Made from gray ABS plastic with a V0 fire-retardant rating, it provides a safe and stable housing for devices like the Basic (R2), RF (R2), POW, TH10, TH16, Dual (R2), and G1. Installation is straightforward thanks to a blue quick-fix mechanism that allows you to snap the tray onto a DIN rail or remove it without needing extra tools. Weighing only 35 g and measuring 113 x 51 x 10 mm, this compact accessory comes with four mounting screws to ensure everything stays firmly in place, though you will need to provide your own DIN rail for the setup.