Some have features like this one from Agilent has A new family of instrument modules including an pc oscilloscope , function generator, source measure unit, switch matrix and DMM you can use separately or in a card cage. U2702A USB Modular Oscilloscope, 200 MHzFeatures: Shorter time to make measurements Simple USB interface to PC Bundled, easy-to-use, full-featured software Adapts easily to your needs, affordable to upgrade when you need to. Available Agilent Modules can be mixed and matched: 100 or 200 MHz USB oscilloscope features sampling rates up to 1 GS/a/s to enhance troubleshooting tasks such as circuit-board power-up sequence, in-rush current and frequency. 20MHz USB function generator produces sine, square, triangular, pulse, ramp, exponential, modulated and arbitrary waveforms for electronic functional testing and troubleshooting. Three channel USB source/measure unit offers four-quadrant source and measurement capabilities for parametric tests including test point measurement, current and voltage source/measure, and resistance measurement. 32-channel UBS switch matrix features a four-by-eight, two-wire design that provides additional test points for functional tests. Key specifications include crosstalk of less than -30 dB at 45 MHz and insertion loss of just 4.5 dB. Agilent 200 MHz Oscilloscope USB Module. USB 2 Channel PC Oscilloscope, 100MS/s PC Based USB Digital Storage Oscilloscope, DSO 2090 = =
