Transformer Kits are groupings of transformers of different values and quantities. A transformer transfers energy usually through the use of a pair of wound coil wires from one circuit to another. The characteristics are kit type, quantity, and mounting type. The kit types are current sense, design power-over-Ethernet, ferrite cores/rods, for DC/DC converter, gate drive, high frequency current sense, high frequency gate drive, LAN, and speedy design power transformer.