The EPC8009 from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 65 V, Drain Source Resistance 90 to 130 milli-ohm, Continous Drain Current 4 A, Pulsed Drain Current 7.5 A. Tags: Die. More details for EPC8009 can be seen below.