It also works as an NTFS writer, so you can easily transfer files from your Mac computer to the external hard drive. The app can do this with the same high speed as reading a native HFS+ drive. App FeaturesĪs an NTFS reader for Mac, M3 NTFS lets you copy files from your NTFS external hard drive or USB flash drive to your Mac computer’s local hard drive. Keep in mind, however, that you need to safely eject the hard drive after reading or writing it on your computer.