Quoted from Who-Dey:That wont work on a PS5, its gotta be a SSD hard drive. Seems like they are about $169.00 for a 1TB.
It seems like Sony is still working out the details. From what I've read PS4 games can be played from an external USB hard drive but not PS5 games. PS5 games will need to be played from the internal hard drive (or whatever supported drives Sony adds) which operates at 5.5 gb/s. The internal PS5 hard drive transfer speed is higher then PCIe 3.0 but slightly slower then the max speed of PICe 4.0 NVMe SSD's. For PS5 games I wonder if Sony will only allow disk space to be expanded using a PCIe 4.0 NVMe drive.
Pumped for the PS5! It seems like a lot of system for $400 - $500.
https://www.pushsquare.com/guides/ps5-ssd-why-its-better-than-hdd
Example of 2TB PCIe 4.0 NVMe drive, $360.
https://www.amazon.com/Inland-Performance-Internal-Solid-State/dp/B07TBBCWYK/ref=sr_1_5