Visit my online shop at https: //mXion.de/ For better prices! Large voltage buffer (powercap) for uninterrupted operation suitable for all locomotive decoders and sound modules. Also for analogue operation (with decoder) or sound modules (stationary noise). Connection with control cable. You can find more information in the Operating instructions => https://www.micron-dynamics.de/sitecake-content/mXion%20miniCap.pdf Charging current: 300mA Load current: 2A Bridging time: over 2 minutes (depending on power consumption and charging status) 3 elements per size: 7 x 24 x 30mm .