Pico Technology 6424E PC USB Oscilloscope:

500 MHz bandwidth, 4 channels
8-12 bit resolution, 4 GS/s sampling rate
6000E Series: high-performance, portable design
SuperSpeed USB 3.0 interface for fast data transfer
Advanced triggering capabilities, including zone and mask triggers
Deep memory buffer (up to 128 MS) for extended capture time
* Compact and lightweight, ideal for field or benchtop use