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Description: The Black DSO Quad is an open-source pocket-sized 4-channel digital oscilloscope. It's based on the ARM cortex M3 32-bit platform, providing 72MS/s sampling rate with integrated FPGA and high speed ADC. The Internal 2MB memory can even store waveforms in various formats which you can transfer to your computer using a mini-USB cable.
Note: Check the link below for the most up-to-date firmware.