How to Upgrade or Replace Your PS4 and PS4 Pro Hard Drive - PlayStation 4 Guide - IGN
Amazon.com: Avolusion HDDGear 8TB USB 3.0 External Gaming Hard Drive (for PS4 Pro & Slim, Pre-Formatted) - 2 Year Warranty : Video Games
How to Upgrade or Replace Your PS4 and PS4 Pro Hard Drive - PlayStation 4 Guide - IGN
PS4 will soon support external USB hard drives | Ars Technica
MaxDigitalData 2TB PS4 Hard Drive Upgrade Kit Bundle with Toshiba 2TB 5400RPM 16MB Cache SATA 6Gb/s 2.5in Internal Hard Drive (Works for PS4 Game Console) - Walmart.com