Seagate BarraCuda 5TB Internal Hard Drive HDD – 2.5 Inch SATA 6Gb/s 5400 RPM 128MB Cache for Computer Desktop PC (ST5000LM000) : Amazon.ca: Electronics
WD Blue SATA 2.5" Laptop Hard Drive HDD | Western Digital
500GB Major Brands 2.5" SATA Laptop Hard drive 7200RPM
Seagate's new 5TB hard drive is actually affordable - The Verge