The ZVS a driver board finally got here after holiday and pandemic delays (which were not the fault of the seller), and the unit looks to be VERY well built. The soldering lines of the capacitors and mosfets appear to be VERY heavy duty, and make it easy to imagine it handling its 3000 watt/50 amp power rating. All the components appear to be brand new and expertly assembled. I bought a 3000 watt power supply for it, but have not assembled the unit due to waiting for additional components to arrive. The unit was well packaged with bubble wrap, foam, and careful packaging kept each individually wrapped component safe and sound.