: A PS2 console (Slim or Fat) and a USB flash drive.
FAT32 drives cannot hold files larger than 4GB. USBUtil "slices" PS2 ISOs (often 4.3GB or larger) into 1GB chunks so they can be stored on the USB and recognized by loaders. USBUtil v2.1 PS2 setup free
: Your USB drive must be formatted to FAT32 with an MBR partition scheme. : A PS2 console (Slim or Fat) and a USB flash drive