GW-Instek-GDS-3504-500 M Hz-4CH-Digital-Storage-Oscilloscope-GW-Instek-GDS-3504-P-The-GW-Instek-GDS-3504-500 M Hz-4-Channel-Digital-Storage-Oscilloscope-is-a-new-platform-of-4-input-channels-500 M Hz-bandwidth-5 G Sa-s-sampling-rate-&-VPO-waveform-display-The-split-screen-feature-has-been-designed-to-meet-the-requirements-of-multi-window-&-multi-signal-tests-in-the-research-&-the-manufacturing-fields-The-optional-power-analysis-software-&-the-optional-serial-bus-analysis-software-are