This is Lot (Qty. 2) of PCB designed for RFMD/Sirenza 4.9-5.9GHz 1Watt SZA-5044Z RF MMIC Power Amplifier in 4mmx4mm QFN Package. Size of the PCB 1"x1"x0.031", FR-4 material, double-sided with soild plated ground on the back. Will fit SMA/SMB or MCX RF connector with 0.031" board space. I have SZA-5044Z for sale in my store, link below.
Data Sheet: