Overview
- Major retailers offered steep, limited-time deals in late June that cut the Samsung P9 256GB to about $39.99 on Amazon and the 512GB to about $119.99 at B&H.
- The sales matter because the Nintendo Switch 2 ships with 256GB of internal storage and requires microSD Express cards to play games from the expansion slot.
- Samsung’s P9 uses the PCI Express-based microSD Express protocol for read speeds up to 800 MB/s and includes Dynamic Thermal Guard, six physical protections, three-year warranty, and backward compatibility.
- Independent testing singled the P9 out as a strong 256GB budget option even though higher-end cards can outperform it and PCIe-based microSDs can run hotter than traditional cards.
- A global memory chip shortage has kept baseline prices high so these Prime Day cuts are likely temporary and they represent a short window for owners to add large, high-performance storage for multiple AAA titles.