It’s important to choose the file system that suits your need. Newer Seagate and LaCie branded external drives come preformatted exFAT, some older drives are formatted for PCs, some for Macs, and some of them have special utilities allowing them to work between both without formatting. Seagate Expansion Portable 4TB External Hard Drive Desktop HDD – USB 3.0 for PC Laptop (STEA4000400),Black 4.4 out of 5 stars 43,753 LaCie Rugged USB-C 2TB External Hard Drive Portable HDD – USB 3.0 compatible, Drop Shock Dust Rain Resistant, for Mac and PC Computer Desktop Workstation Laptop, 1 Month Adobe CC (STFR2000800). However, macOS disabled the NTFS write support by default. So your Seagate HDD is read only on Mac, which affects Seagate Backup Plus Ultra Touch, Portable drive, and Slim. Most Seagate external drives are read-only on Mac because they are pre-fomatted with Windows NT file system (NTFS) by the manufacturer. The sleek case design allows for a thin portable hard drive with 2TB of capacity. The Seagate Expansion Portable hard drive offers an easy-to-use solution when you need to instantly add storage to your computer and take files on the go.
