These 8GB drives come partitioned and formatted as 1 GB USB-ZIP drives ( 1024/64/32 C/H/S on the 4th partition). Some older BIOSs require this arrangement to boot from a USB disk. Current BIOSs should see it as a USB-HDD. It is formatted as FAT16 on the first 1024 cylinders. Typical read speed is 14 - 17 MB/s . Typical write speed is 3 - 4.5 MB/s. Actual drive capacity is 8 GB's, the unused space can be seen and accessed in Linux. With version 4.8.1 of the preloaded SystemRescueDisk you will be able to recover lost files, lost partitions, fix a corrupt MBR, re-create or resize partitions on drives, edit files on ext2/ext3/ext4, ReiserFS, btrfs, xfs, jfs, FAT12/16/32 and NTFS file systems, shred digital files, wipe entire drives, format drives, clone/image drives for multiple installations, browse anonymously, search the web for answers or to download drivers/programs and so much more . Also included in the preloaded software is a current version of CHNTPW (Change NT Password). A bootable recovery utility allowing anyone (even with minimal experience) to remove a password or re-enable a locked account on Windows 2000 , XP , 2003 , Vista , 7 , 2008 , 8 , 8.1 or 10. It will also display the Digital Product ID used to activate your version of Windows. Also includes a registry editor, allowing mistakes to be repaired on an unbootable Windows installation. These are new private label drives and are shipped and delivered to us in bulk. This means there is NO RETAIL PACKAGING and online instruction only.. You get a quality product with less packaging and waste going to your landfill.