1,[Gain Module] The amplifier is a 30‑4000MHz amplifier with a large dynamic range and is suitable for fixed gain amplification of RF signals. 2,[Aluminum Alloy Case] The module has an aluminum alloy casing, and the aluminum alloy is not easy to rust and deform, and has a long service life. 3,[Extended Communication Distance] This RF amplifier module is especially suitable for various RF receiving front end circuits to extend the communication distance. 4,[Dust Proof] The shell of the module can also play a role of dust protection, which can ensure the electronic components inside from external influences. 5,[Wide Application] Widely used in shortwave, remote control receivers, cable TV signal amplifiers, GPS satellite navigation, 2.4G Bluetooth and WIFI receiver RF front ends that require low noise small signal RF amplification. Item Type: RF Amplifier Module Material: Aluminum alloy Model: XR 142 Frequency: 30-4000MHz Gain: 40dB Supply Voltage: DC 5V Working Current: 135mA (5V) 1 x RF Amplifier Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.