Manufacturing Date August 2025. Pulled from New Dell Laptop/PC. The HFS512GEJ9X101N is a SK Hynix PC801 512GB M. 2 2280 NVMe SSD, a PCIe Gen4 x4 drive known for high performance, offering sequential read speeds around 7000 MB/s and write speeds near 4700 MB/s, with random IOPS in the millions, making it a fast, modern internal solid-state drive, often found in Dell OEM systems. Brand: SK Hynix (PC801 Series). Interface: PCIe Gen4 x4 (NVMe 1.4). Sequential Read: Up to 7000 MB/s. Sequential Write: Up to 4700 MB/s. Random Read (IOPS): Up to 1500k IOPS. Random Write (IOPS): Up to 1400k IOPS. NAND Type: TLC (Triple-Level Cell). Controller: SK Hynix (ARM-based).