Review on 💨 ADATA Falcon 256GB 3D NAND PCIe Gen3x4 NVMe M.2 2280 Internal SSD (AFALCON-256G-C) - Enhanced Read/Write Speed up to 3100/1500 MB/s by Jose Muenzen

This is advertised as TLC NAND but I strongly suspect they have replaced the cheaper and MUCH slower QLC NAND. Ordered a new 2TB Swordfish. Plugged it in and it seemed EXTREMELY slow to me. User benchmark and Crystal Disk Mark report write speeds of 50-80 MB/s once the cache is full. Everything is fine with my equipment. I tested the same slot with 2 other NVME drives and both were >1000. It's 50-80. abominable. Also tested in USBC NVME case.