The MABC-001000-DP000L module provides proper gate voltage and pulsed drain voltage biasing for a device under test (DUT). The module also provides bias sequencing, ensuring that the pulsed drain voltage cannot be applied to a device under test unless the negative gate bias voltage is present. The Bias Controller module solution offers protection and dynamic control of all MACOM High-Power transistors including MACOM’s broad GaN portfolio. The solution consists of two functional elements arranged vertically on the customers’ board to conserve size, weight and cost. The first functional element referred to as Module 1 is patterned and populated directly onto the customer board. The second functional element, referred to as Module 2, uses the land pattern of Module 1 and interconnects vertically through Module 1. The primary function of Module 1 is drain switching, while the main function of Module 2 is to provide the customer with easy gate switching.