Lenovo ThinkCentre M910x - I;O Box; I;O Box Overview

I/O box 8
I/O box
Overview
Note
Depending on your computer model, the I/O box might be optional.
1
USB 2.0 connectors (2)
2
Serial connector (optional)
3
USB 2.0 connectors (2)
4
USB 3.0 connectors (2)
5
USB 3.0 connector
(for connecting to the computer)