Four and eight channel USB oscilloscopes are being used increasingly as developers need to see more and more about their circuits.
The 4 and 8 channel PicoScopes give a huge amount more flexibility, but in view of the additional channels they require a greater memory to provide the same performance per channel. This naturally increases the cost.
4 and 8 channel scope applications
With the complexity of electronic circuits increasing, developers need to be able to look deeper into their operation to ensure the circuit is operating correctly, or to investigate and issues that might occur.