1、SI5351A Core Board: Adopt SI5351A Core Board and STM32 Built in program, with USB power can work, whcih is very suitable for detecting 2、Self Shielding: With self shielding, the working operation is more stable, and the working efficiency is greatly improved 3、Configurable Division Ratio: F2 and F1 Share a phase locked loop, and the frequency division ratio can be configured 4、Minimum Stepping: Equipped with 3in TFT, configurable minimum stepping of the clock signal generator is 1Hz 5、Strict Standard: Strictly following the industry standards and controlling the quality to meet your higher requirements 1 x Clock Signal Generator1 x USB Cable Item Type: Clock Signal GeneratorMaterial: PCBModel: SI5351ASupply Voltage: +5VOutput Frequency:  F0=F1= 2.5K to 200MHzOutput Interface: SMA FemaleConfigurable Minimum Step: 1Hz (Equipped with STM32+ 1.3in TFT)