Hi, I’ve been using a 500 GB LaCie portable for backing up data on my Mac. Unfortunately, due to some negligence on my part the metal of the USB at the end of the connector that plugs into the port in the computer has got rusted. Now I’ve recently got a new MBP and am worried if using the rusted connector can harm the new MBP’s USB port in any way. Getting a new connector for the external is not possible. Should I get a new external HDD or is it okay to use the old one? Thanks!