"It allows the low level formatting not only of hard drives but also of USB drives."
if you need to format an external storage device, try this HDD Low Level Format Tool 188.8.131.52. As the name clearly indicates, HDD Low Level Format Tool 184.108.40.206 is a tool for storage devices. It allows the low level formatting not only of hard drives but also of USB drives, letting you restore them to how they were before (clearing away any errors they may have had.).
HDD Low Level Format Tool 220.127.116.11 supports the following interfaces: S-ATA (SATA), IDE (E-IDE), SCSI, SAS, USB, FIREWIRE. it also supports big drives (LBA-48), and supports the following manufacturers: Maxtor, Hitachi, Seagate, Samsung, Toshiba, Fujitsu, IBM, Quantum, Western Digital, and almost any other not listed here.
The program also supports low-level formatting of FLASH cards (SD, MMC, MemoryStick and CompactFlash) using a card-reader.