I don't think it has usb 3.0, I could not find that info myself. It powers my external WD HD fine thru usb. It supports NTFS external HD's. I have my WD 1gb external HD partitoned- 500gb FAT32 and 500 gb NTFS, it only recognizes the NTFS partition for some reason. What's really weird is that it recognizes my fat32 4gb usb flash drive.