1Multiple functions: Pass/fail test, resourceful trigger function, dynamic cursor tracking, waveform record, FFT spectrum analyzer and other function. 2The Owon VDS3102 2+1 channel virtual oscilloscope is an oscilloscope that can connect directly with PCs through a USB connection. 3Good mechanical design with small size which is easy for carrying. 4Accommodates users with 100 MHz of bandwidth, 1 GSa/s real-time sample rate, and multiple trigger modes - edge, video, slope, pulse, and alternate. Its USB powering facilitates mobile tests under powerless conditions. 5Fit for the portable computers, table PC, and repairing/fixing of production line.