SANDISK 4TB Optimus GX PRO 850X M.2 PCIe NVMe SDSP81400TAN-000E0

The SanDisk Optimus GX PRO 850X is an internal 4 TB SSD in the M.2 2280 form factor, using the D5-M key. It connects over a PCIe 4.0 x4 interface with the NVMe protocol, which according to the specifications delivers sequential read speeds of up to 7300 MB/s and write speeds of up to 6600 MB/s. The drive uses TLC flash memory and is rated for a total write endurance of 2400 TBW.

Its built-in hardware encryption complies with the TCG Opal Encryption 2.01 standard, providing data protection at the hardware level. This makes the drive particularly suitable for servers, workstations and high-performance computing systems where large capacities must be combined with the security of sensitive information.

Compared with conventional SATA SSDs, the PCIe 4.0 connection offers substantially higher transfer rates. It is well suited to databases, virtualization and other data-intensive workloads that demand fast access times and reliable operation.