Two partitions will be necessary because of the MBR limitation. A 3TB disk drive in a legacy BIOS and Window system will need a DiscWizard device driver to access the full capacity of a 3TB disk drive. Windows operating systems that boot from an MBR are therefore limited to 2.2TB per MBR. The MBR Partitions can define a disk drive capacity up to 2.2TB. This type of BIOS uses a Master Boot Record (MBR). Most legacy systems built before 2011 have a traditional PC BIOS. PC Gaming FireCuda Gaming Hard Drive FireCuda Gaming Hub FireCuda Gaming Dock FireCuda Gaming SSD FireCuda 530 SSD FireCuda 520 SSD FireCuda 520 SSD - Cyberpunk 2077 Limited Edition FireCuda 510 SSD FireCuda 120 SSD Beskar™ Ingot Special Edition.