I kind of assumed this was a question for someone who works as a DIT and has a Resolve machine on set. I would weld a lock box to the DIT cart with a USB hub in it.
-Rob-
Robert Houllahan
Director / Colorist
Cinelab Inc.
http://www.cinelab.com
MAHC-PRO 6-Core 3X GTX285 20Tb SAS Wave Panel Panny 11UK SDI Plasma. Light-Space CMS + Hubble