Is there any solution where in I can copy these hard drives to a new hard drive faster? Should I build a new system or change my motherboard or replace all my external drives with 7 TBs of internal drives. Is it possible?

Can a motherboard handle 7 TBs of internal drives? How can I speed up my computer? Any configuration so I can build a powerful fast system? Please help! I need to copy 6 TB of media in 6 days.