LS Seagate External Hard Disk 500GB 1TB 2TB Storage Backup + Ultra-Thin USB 3.0 HDD 2.5 "Portable. For example: The actual capacity is the marked capacity of the hard disk 1000G / 1.024 / 1.024 / 1.024 = 931G (1000 ÷ 1.024 ÷ 1.024 ÷ 1.024), so the display capacity of a 1TB hard disk is 931G.
eBay