It used to be that Mac's couldn't write to NTFS drives only to FAT 16/32 drives. Using some google-fu, here is what I found:
Paid Third-Party Drivers: There are third-party NTFS drivers for Mac that you can install, and they’ll work quite well. These are paid solutions, but they’re easy to install and reportedly offer better performance than the free solutions below.
Free Third-Party Drivers: There are also free and open-source NTFS drivers you can install on a Mac to enable write support. Unfortunately, these take a bit of extra work to install, especially on OS X 10.11 El Capitan with the new System Integrity Protection feature. They may also not work as well as paid solutions, and may be slower.
Apple’s Experimental NTFS-Write Support: Mac OS X includes experimental support for writing to NTFS drives. However, it’s off by default and requires some messing around in the terminal to enable it. It isn’t guaranteed to work properly and could potentially cause problems with your NTFS file system
This was found on https://www.howtogeek.com/236055/how...ives-on-a-mac/