USB OTG on the Note4

[StoneTheKiwis]

I have an old Note 2 (though currently I'm using a Jiayu S3) and want to upgrade to the Note 4. I remember that the Note 2 can mount up to 6 usb devices on /storage (UsbDriveA .. etc) and wonder if the Note 4 can also do this?

Can the Note 4 read/write exFat and NTFS file systems? Is there a size limit, eg a 4tb usb hard drive on NTFS?

Thanks
Lyn