Hello,
there are a few things that are better with the MHO3:
HDMI output,
Four USB 3 sockets,
variable low and high pass filters,
Memory: MHO3 has two times 360 MS, SDS3000X HD has only 400 MS and with segmented memory the gap is even greater.
14" screen.
Four BNC adapters are included, which are not required for the 500 MHz probes supplied.
The 500 MHz probes supplied have individual serial numbers and can only be calibrated automatically.
Best regards
egonotto