Toshiba Canvio AeroMobile User Manual page 17

Introduction
16
Overview
NOTE
This drive is formatted in NTFS for Windows. When
using this drive with both Windows PC and Mac, you
can read and write data to both Windows PC and
Mac only if the "Tuxera NTFS for Mac" is installed on
the Mac. Under these conditions the Time Machine
function of the OS X is disabled.