The EPC2207 from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 200 V, Drain Source Resistance 15 to 22 milli-ohm, Continous Drain Current 14 A, Pulsed Drain Current 54 A. Tags: Die. More details for EPC2207 can be seen below.