The AAR-2820SA has a surprisingly good speed of copying within the same partition – it is close to the leading ASR-4305 with every array type and even overtakes it on large ISO files. The ASR-44300 and AAR-1420SA are the slowest in this test in comparison with the other controllers.
The AAR-2820SA is again good at copying, this time from one partition to another. The ASR-3405 wins again, irrespective of the array type, while the losers are different. The ASR-44300 is no good in this test with the RAID10. The ASR-1420SA is slow with the RAID0.
You can view the diagrams with the FAT32 results by the following link: FC-Test FAT32 results.