Amazon.com: KingSpec 256GB 2230 SSD NVMe Gen3x4, M.2 PCIe 3.0 SSD with 3D NAND Flash, Internal Solid State Hard Drive for Steam Deck & Surface Pro (Read Speed up to 3500MB/s) :
MOVESPEED 3500MB/s SSD NVMe M.2 2280 2TB 1TB 512GB 256GB Internal Solid State Drive M2 PCIe 3.0x4 2280 SSD for Laptop PC - AliExpress
Storage Game Loading Test: PCIe 4.0 SSD vs. PCIe 3.0 vs. SATA vs. HDD | TechSpot