It is new, never used but no box.

Model Number: WDS400T2XHE-00BCA0

​Capacity: 4 TB

​Form Factor: M.2 2280 (with integrated Heatsink)

​Interface: PCIe Gen4 x4, NVMe 1.4

​Max Sequential Read Speed: Up to 7,200 MB/s

​Max Sequential Write Speed: Up to 6,600 MB/s

​Random Read (IOPS): Up to 1,200K IOPS

​Random Write (IOPS): Up to 1,100K IOPS

​Endurance (TBW): 2,400 TBW

​Power Rating: 3.3 VDC, 2.8 A

​Date of Manufacture (DOM): 16 MAY 2025