General

Brand	Micron
Model	7450 MAX
Capacity	400GB
Usage Class	Mixed Use

Interface

Host Interface	PCIe Gen4 NVMe
Total Interface Bandwidth	16 Gb/s

Physical Dimension

Form Factor	U.3 15mm

Flash & Endurance

NAND Flash	176-layer 3D TLC
Drive Writes Per Day	3
Total Bytes Written	2190 TBW

Performance

Sequential Read	5500 MB/s
Sequential Write	1100 MB/s
Random Read IOPS	350000
Random Write IOPS	105000
Average Latency	80 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Engineer's Note

The Micron 7450 MAX 400GB (MTFDKBA400TFS-1BC1ZA) is purpose-built for write-intensive metadata, logging, caching, and journal tiers in edge and enterprise servers, combining 3 DWPD endurance and 2,190 TBW with low-capacity deployment efficiency where durability matters more than raw capacity. Compared with typical same-class read-optimized Gen4 SSDs, it delivers a stronger endurance profile while still sustaining up to 5,500 MB/s read, 1,100 MB/s write, and 350K/105K random IOPS for consistent performance under mixed transactional workloads.

Endurance & Reliability

With an endurance rating of 2,190 TBW and 3 DWPD, the MTFDKBA400TFS-1BC1ZA is built to sustain heavy write-intensive enterprise workloads throughout its service life. In practical terms, for typical server or system-disk usage, this level of endurance provides long-term confidence and can comfortably support many years of reliable operation without endurance becoming a concern. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted. Its UBER of 1.0E-17 indicates an extremely low rate of unrecoverable bit errors, supporting high data integrity and dependable performance in business-critical environments.

Technical Specs & Insights

1. The PCIe Gen4 NVMe interface gives the drive enough host bandwidth to eliminate storage bus bottlenecks in modern servers, helping virtualization, analytics, and AI nodes keep expensive CPU resources fed with data.
2. Its strong sequential-read throughput speeds up large-block workloads such as database scans, backup restores, and model loading, reducing application startup and recovery windows in the data center.
3. The high random-read capability supports dense transactional and mixed-use environments by serving a large volume of small I/O requests quickly, which helps maintain responsive performance across shared enterprise workloads.
4. A 3 DWPD endurance rating makes it well suited for write-intensive roles like logging, caching, and high-churn databases, enabling sustained daily rewrites over the service life without premature wear concerns.
5. Built on 176-layer 3D TLC NAND with low typical latency, the drive balances enterprise-grade capacity efficiency, predictable QoS, and fast response times for latency-sensitive cloud and business-critical applications.

Capacity Sweet

For adjacent capacity references in the same family, the lower step is 200GB and the higher step is 800GB. The 400GB model sits at the sweet spot of the lineup: compared with 200GB, it offers much better headroom for OS, logs, metadata, and steady growth without changing the expected enterprise-class sequential and random performance profile. Compared with 800GB, it delivers a more efficient cost-per-deployment while preserving essentially the same responsiveness. It is especially well suited for small to mid-size virtualization clusters, such as boot and infrastructure storage for about 40 to 60 virtual machines.

FAQ