The titan aero on this printer is genuine E3D. And while it does have a 24v heater cartridge, it is a 40 watt part with the red wires. These heaters work fine. They have for a long time and never had a problem. However, E3D sells these high precision 30 watt cartridges with the green wires. And they still get up to the high temps just fine. Also I am installing a Micro Swiss plated 0.25mm nozzle..