[Barely Used]only 237 hours!100% health
WD Black 4TBGen 4 NVMe (works with PCIe 3.0 also)PS5 / PS5 Pro and PC certifiedSN850P NVMe Black

1. General Information:

• Model Number: WDS400T2X0E
• Capacity: 4TB (4000 GB)
• Form Factor: M.2 2280
• Interface: PCIe Gen4 x4 NVMe 1.4
• Manufacturer: Western Digital (WD) - WD Black is their performance-focused brand.

2. Performance:

• Sequential Read Speed: Up to 7,300 MB/s
• Sequential Write Speed: Up to 6,600 MB/s
• Random Read Speed (4K): Up to 1,200,000 IOPS (Input/Output Operations Per Second)
• Random Write Speed (4K): Up to 1,100,000 IOPS
• DRAM Cache: 4GB

3. NAND Flash Memory:

• Type: 3D NAND TLC (Triple-Level Cell)
• WD Endurance Technology: Western Digital's proprietary technology designed to enhance endurance and maintain consistent performance over time.

4. Physical Characteristics:

• Dimensions: 22mm x 80mm x 3.5mm
• Weight: Approximately 41g (1.44 oz) - slightly heavier due to the heatsink option

5. Reliability & Features:

• Mean Time Between Failures (MTBF): 1.8 million hours
• Total Bytes Written (TBW): 1200 TBW (A very high TBW rating for a 4TB drive.)
• Error Correction Code (ECC): Yes
• S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology): Yes
• NVMe Command Set: NVM 1.4
• Power Loss Protection: Yes (utilizes capacitors)
• Heatsink Options: Available with or without a pre-installed heatsink. The heatsink helps maintain optimal performance by preventing thermal throttling. The heatsink version has a slightly higher power draw.
• WD Black Dashboard: WD provides a software utility to monitor drive health, update firmware, and optimize performance.
• Game Mode 2.0: A feature in the WD Black Dashboard designed to prioritize game loading times.