looks interesting. Do you have a link or specs for it?
Found on eBay: SZM2166
SZM2166 RF Power Amplifier 2.4GHz 2W 33dBm 8-23V DC Wide Voltage Input for Signal Amplification
This is a 2W 2.4GHz RF power amplifier, and it can be considered as SZA2044 or RF2126. It comes with DC and supports wide voltage input (8-23V).
Supply voltage: 8-23V
Working frequency: 2450MHz
Input and output impedance: 50 ohms
Power: 2W (33dBm)
Interface: SMA outer screw inner hole
Antenna type: external
Size: 5 x 5 x 3cm
Application: for signal amplification
1 x RF Power Amplifier
PA Device is discontinued, but P1dB is listed as 35dBm by Qorvo which seems quite good.
Although this performance probably will be less on cheap FR4 PCB.
P1dB=35dBm at 6V
Three Stages of Gain: 37dB
802.11g 54Mb/s Class AB Performance
POUT=27dBm at 2.5%EVM, VCC
Active Bias with Adjustable Current
On-Chip Output Power Detector