Not sure on part number. I bought it used, no packaging.
From Newegg specs.
Samsumg MZ1LV960HCJH 960GB PCI Express Gen3 x4 M.2 Enterprise SSD
- 1.3DWPD; M.2 Form Factor
- 960GB NVMe PCIe Gen 3.0 x4
- Supplies 32 Gb/s of bandwidth
- Enterprise-grade power loss protection
Hard Drive SSD 960GB NVMe Protocol, PCI Express 3.0 x4, internal - 1.3DWPD, M.2 Form Factor, VNAND, Up to 1,000MB/s Sequential Read (128KB), Up to 870MB/s Sequential Write (128KB), Up to 240K IOPS Random Read IOPS (4KB), Up to 19K IOPS Random Write IOPS (4KB) - PM953 Series
Here is what Samsung Magician says.