SparkFun USB Logic Analyzer – 24MHz/8-Channel is a USB Logic Analyzer with support for sampling rates of up to 24MHz. The device provides an economic option for quickly diagnosing most communication issues. These analyzers will work with 3.3V and 5V systems (up to 5.25V max and 2.0V minimum on a high logic level). The devices are powered with an included mini-B USB cable.