Mini USB cable for 2011UASRM, what type is it

I have a RB751G-2HD and I have a USB disk attached for saving the log files to.

I noticed that RB2011UAS RM and some core routers have a Micro USB, I assume I could do the same that if I could get a cable, does anybody know what type the cable is and where I might get one in UK.

It is standard OTG cable.

A such cable should be in the package content of RB2011.

My god so it is, it was stuck underneath, so I did not see it when I lifted out the cardboard.