Features 【Efficient Work】: Low insertion loss will reduce signal loss to ensures a clearer signal reception. 【Better Control】: Has 0 to 31.75DB programmable gain attenuation range, and 0.25DB step for control. 【Easy to Install】: 3pcs connecting line are included in the set, making it much simpler to install. 【High Bandwidth】: From 9KHz to 4GHz, the high bandwidth enables reliable working and extensive use. 【Flexible Usage】: The attenuator module supports both parallel port and serial port mode functions. Specification: Item Type: Attenuator Module Material: PCB Model: PE43703 Power Supply Voltage: 5V DC (typical current value 5mA). Programmable Gain Attenuation Range: 0 to 31.75DB step 0.25DB. Input and Output Impedance: 50 ohms. Insertion Loss: 2dB Maximum Input Power: +23dB. Bandwidth: 9KHz to 4GHz (the attenuation value is different under different frequencies, please refer to the S21 curve index for details).  Package List: 1 x Attenuator Module 3 x Connecting Cable Note: Don't overload. Package List 1 x Attenuator Module 3 x Connecting Cable