USB 3-ports Needs to support mouse,keyboard and flash drive
Why the kinky font? it's very dull on the greywhite background.
Like an old-school typewriter with an ink belt singing on its last tune but then again putting [B/] in front of courier font for a bold-variant, leaves a lot to be desired.
In regards to USB sockets.. most modern scopes will tolerate multiple input devices from a single USB host socket..
How I use my hybrid scope and when stationary I just attach a cheap USB dongle with all the peripherals.
Tested its single USB socket, with 4 or 5 things attached at once.. mouse, airmouse, keyboard etc. and it had no problems in accepting it all at the same time..
For secondary harddrives/flashdrives, you can encounter that there are two standards.. one for the system OS and one for the scope-app on units that run the scope part as an app if you look to drop data directly onto an external harddrive...
At least the situation I encountered, where the system OS will gladly accept fx 2TB Gen4 PCI NVMe drives (in a 20Gbps TypeC enclosure) through its USB socket, so you get the full 2TB accessible in the secondary system UI, but not in the scope app, to directly port fx data onto WAV/CSV/BIN.. and seems to be a 32 or 64GB limit and likely also FAT format standard.