Sterling

Good day ladies and gents, just had a quick one. so I see hunt v1 requires a fat32 formatted USB, I have a USB connectable portable HDD that's formatted in ExFat, as far as I know (please correct me if I'm mistaken) but I thought Exfat and fat32 are identical in how they function, that the only difference was the size limitation lifted for file sizes, am I safe to use my exfat removable hdd? or do I specifically need to buy a flashdrive and use that as fat32