Working frequency: 50M-8GHZ (lower than 50MHZ can increase coupling capacitance); Input and output interface: SMA-50 ohm (external spiral inner hole); Circuit board size: 5x5CM (excluding protruding SMA); Power supply: +5V (with input protection diode); Control port: 0/5V control (can be controlled by MCU IO port, A/ three main control);<br><br>Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color: As Shown Material: Metal<br><br>Package Contents: 1 x Switch Module<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.