Features: The Amplifiers module is used for signal Gains promotion and small signal amplification in various radio transmitters and receivers. The module covers the broadband frequency ranges of 10M‑6GHz, covering 433M,1.2Ghz,1.5G,2.4G,5.8G and other typical application frequency point. It have high flatness Gains characteristics of 10dB, 20dB 30dB 40dB. It is used in Transmitters signal Gains promotion and receiver system. The module is power by USB C+5V, with power indicator. Specifications: Component:Metal Type:10DB/20DB/30DB/40DB Working voltages: +5V single power supply Power interfaces: USB C Working current: 10dB-50mA; 20dB-75mA; 30dB-80mA; 40dB-80mA Operating frequency: 10M-6GHz P1dB output power: +10dBm@2GHz; +12dBm@2GHz; +18dBm@2GHz; +18dBm@2GHz Noise figure: 4.50dB; Size:Approx.6.5x2.54cm/2.56x1inch Package Includes: 1 Set RF Amplifiers note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.