There are several ways to format a hard drive.
To view the list of compatible HD and USB disk for storage router, click here. NOTE: Before connecting your external USB hard disk to the router’s USB port, make sure your hard disk is already formatted in either NTFS or FAT32 file system using your computer to avoid any difficulties. Computers that are connected to the network will be able to access the Shared Drive if they have login credentials such as admin or guest. The USB port on the router can be used to connect an external USB hard drive or flash disk. What devices can I connect to the USB port on the router?