The Samsung P9 Express 256GB (MB-MK256T/AM) is a high-performance microSDXC card designed for next-gen gaming, featuring PCIe 3.0 x1/NVMe 1.3 interface for up to 800 MB/s sequential read speeds. It offers 256GB capacity, 100TB endurance, and includes Thermal Guard protection, making it ideal for the Nintendo Switch 2 and high-speed portable devices