Additional Features: Bandwidth: 500 MHz analog  2 Channels Record Length: 5 kpts Color display 2 GSample/sec simultaneously on 2 channels 1 ns peak detect Optional expansion modules for FFT, waveform storage, and remote control Sweep speeds from 1 ns/div to 5 s/div The top-of-the-line 54616B offers the same benefits as the 54615B but with twice the sample rate— 2 GSa/s sampling rate, 500 MHz bandwidth, and 1 nanosecond peak detection. Plus, if you prefer a color display for waveform viewing, the 54616C color version is available.