This is an SSD drive with a 4,000 GB storage capacity. If you happen to be looking for an internal hard drive, this could be just the thing.
From Neocomputers
Corsair 4TB MP600 CORE XT M.2 NVMe SSD, M.2 2280, PCIe4, 3D QLC NAND, R/W 5000/4400 MB/s, 600K/1000K IOPS