The Owon VDS3104 4+1 Channel Virtual Oscilloscope is an oscilloscope that can connect directly with PCs through a USB connection. Accommodates users with 100 MHz of bandwidth, 1 GSa/s real-time sample rate, and multiple trigger modes - edge, video, slope, pulse, and alternate. The VDS3104 comes included with a power cord, software disc, 2 probes and an adjustment tool, usb cable, power adapter, silicon gel case, and a users manual.