Storage

SSD controller on left, DDR4 memory chip on right

One of the six flash memory chips surrounding the SDD controller

Expandable SSD Storage Slot

The PS5 has an 825GB PCIe 4.0 SSD soldered to the motherboard. It uses a proprietary custom controller.
There is a user-accessible slot for a m.2 2282 PCIe 4.0 SSD under the left side panel for future upgrades.