Main specifications of the PicoScope 6402 include:

• 5 GS/s real-time sample rate
• 350 MHz bandwidth
• 8 Bit resolution
• 32 M sample buffer memory
• 4 channels
• 12 Bit 200 MS/s 20 MHz AWG
• Free software updates
• 5 Year warranty

Look at the PicoScope 6403 if you require 1G sample buffer length