Zalezi na formatovacim programu, nejlepsi je od vyrobce, zkus FAT32 a zmer rychlost CrystalDiskMark-em

Adata PD7 4GB

FAT32 HpUSB format
Sequential Read : 22.775 MB/s
Sequential Write : 6.818 MB/s
Random Read 512KB : 22.753 MB/s
Random Write 512KB : 1.375 MB/s
Random Read 4KB : 5.303 MB/s
Random Write 4KB : 0.015 MB/s


FAT32 SD formater
Sequential Read : 23.806 MB/s
Sequential Write : 10.025 MB/s
Random Read 512KB : 23.820 MB/s
Random Write 512KB : 1.777 MB/s
Random Read 4KB : 5.919 MB/s
Random Write 4KB : 0.017 MB/s