yes, it do support OTG .I wonder whether the SN2100 supports OTG on the front ports for plugging in a USB Stick with a MLNX-OS
for the recovery guide. basically you just need boot the usb and choose install (don't need uninstall first, this will take long time), done.
(sorry reinstall sn2100 last year, detail already forgot, but it's easy and take 15-30 minutes )