macOS can read NTFS volumes but cannot natively write to them.
NTFS-The native files system for Windows.
Manual formatting-Use Disk Management (Windows) or Disk Utility (Mac) to format your drive in non-native formats. Toolkit Optimize-Format your drive for optimal performance with just a few simple clicks. There are two ways you can optimize performance: If you use the drive with only one type of computer, you can optimize file copy performance by formatting the drive in the native file system for your operating system-NTFS for Windows or HFS+ for Macs. LaCie Rugged SECURE is delivered formatted in exFAT for compatibility with both Windows and Mac computers.
