The MAXWELL BLOCK 1 from Phase Four is an RF Ion Thruster that has a thrust of up to 0.007 N. This spacecraft thruster has a mass of 5.9 Kg and a specific impulse of up to 400 sec. It has a power consumption of 300-500 W and requires a supply voltage of 22-34 V. This thruster can be used in SmallSats and supports an RS-422 interface. It measures 190 x 135 x 190 mm and is an ideal turn-key electric propulsion solution for next-generation small satellites.