At my side, i have a 64 Gig. USB Thumb Drive. I have see that with exFAT format, the cluster is 128KB by default. Then at my side, for ~20Gig. of data with 128KB cluster, it take in real ~50Gig. of data space.
Before format a drive to exFAT, please verify cluster option.
It also helps to consider the contents. If it's mostly larger files like MP3s and some documents, 128KB is just fine. If it's a ton of files that are a few KB each, all of them will take up 128KB and that's not fine.
Sometimes, the impossible can become possible, if you're awesome!
i have received my = usb [PortableApps.com Companion (64 Gig.)]
i am remember this old forum thread question, about exFAT and cluster.
Then with my new = usb [PortableApps.com Companion (64 Gig.)], did cluster size can be changed without re-format, or i have to re-format in exFAT and 32K cluster ?