Hey so i wantd SMB on my hAP lite TC but i didnt se usb port. Is there a way to plug usb to ethernet adapter and it whould work? Im noobie.
no, only power is connected to USB port for this model.
You can swap the power supply for a PWR-LINE: https://mikrotik.com/products/group/data-over-powerlines
You would then need a compatible MikroTik at the other end to attach your SMB to, MAP for example has a USB port for SMB.
But the question I pose when reading this: performance ?
10/100 Ethernet ports so it’s going to be slow, but technically PWR-LINE is USB to Ethernet, just really expensive as you require 2 of them and another Tik at the other end.
The OP may be better off with a mAP-2nd and a switch or a hAP ac Lite