Mitsubishi RA07N4452M 7 Watt RF MOSFET amplifier module for portable Radios that operate in the 440 to 520MHz bands. The M series has a plastic cover, and stepped rear mounting flange.
These modules are suitable for both non linear FM and Linear SSB type modes by adjusting the bias voltage. Suits GME TX3200 and TX3400 Transceivers. Replacement for the M67799S.
https://www.mitsubishielectric-mesh.com/products/pdf/ra07n4452m.pdf