The RTH-K2 with Expansion option is a commercial, high-performance oscilloscope from Rohde & Schwarz that offers powerful features and reliable performance in a compact, portable design. Its 8-channel digital design allows for extended observation and analysis capabilities, and its 15-bit AD converter ensures high-precision measurement results, even for low-level signals down to under 10 mV/div. The RTH-K2 also boasts an array of useful features, including a built-in waveform generator, USB 2.0 connectivity, and a selectable memory depth of up to 500 kpts. With the Expansion option, the RTH-K2 can be expanded with up to two additional channels at a time, offering users up to 10 channel capability. It also supports up to 16-bit resolution, an optional second digitizer, and advanced trigger and storage options. The expansion option allows the RTH-K2 to be used to achieve higher-precision measurements, monitor data bus traffic, or capture more detailed signals for further analysis.