General

Brand	Micron
Model	9400 MAX
Capacity	25600GB
Usage Class	Enterprise

Interface

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

Physical Dimension

Form Factor	U.3 15mm

Flash & Endurance

NAND Flash	3D TLC
Drive Writes Per Day	3
Total Bytes Written	140160 TBW

Performance

Sequential Read	7000 MB/s
Sequential Write	7000 MB/s
Random Read IOPS	1600000
Random Write IOPS	600000
Average Latency	69 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 9400 MAX 25.6TB (MTFDKCC25T6TGJ-1BC1ZAB) is purpose-built for write-intensive AI data pipelines, large-scale OLTP databases, and virtualization clusters that need both sustained endurance and predictable low-latency performance, combining 3 DWPD / 140,160 TBW with up to 7,000/7,000 MB/s throughput and 1.6M/600K random IOPS. Compared with typical enterprise Gen4 TLC SSDs in the same class, its standout value is delivering very high usable capacity and write endurance in a single U.2 drive, helping consolidate more hot data per server while reducing drive count, PCIe slot pressure, and storage management overhead.

Endurance & Reliability

With an endurance rating of 140,160 TBW and 3 DWPD, this SSD is designed for sustained enterprise write activity and can comfortably handle heavy daily data churn throughout its service life. In practical terms, for typical OS, application, boot, logging, or mixed server workloads, this level of endurance provides a very large safety margin and supports long-term, worry-free operation. This model also includes power-loss protection, which helps preserve data in flight and protects metadata integrity if power is interrupted unexpectedly. Its enterprise-grade UBER of 1.0E-17, together with a 2 million hour MTBF, indicates an extremely low probability of uncorrectable bit errors and strong overall reliability for business-critical environments.

Technical Specs & Insights

1. The PCIe Gen4 NVMe interface gives the drive the bandwidth and protocol efficiency needed to keep virtualization clusters, analytics nodes, and GPU servers fed without storage becoming the bottleneck.
2. Its sequential read performance accelerates large-block data movement, cutting dataset loading, backup restore, and media processing times in data-intensive enterprise workflows.
3. Its random read capability enables extremely high transaction concurrency, helping databases, metadata-heavy applications, and VDI environments sustain fast response under mixed user demand.
4. The endurance rating is built for write-heavy enterprise duty cycles, allowing frequent full-drive rewrites in caching, logging, and transactional workloads with predictable service life.
5. Built on 3D TLC NAND and paired with very low typical latency, the drive balances cost-efficient flash density with consistently quick access times for latency-sensitive cloud and enterprise applications.

Capacity Sweet

Lower capacity reference: 15.36TB Higher capacity reference: 30.72TB Capacity positioning analysis: Within this enterprise SSD family, 25.6TB sits at a very practical sweet spot. Compared with 15.36TB, it gives materially more headroom for data growth, higher VM density, and longer refresh cycles without changing the expected enterprise-class throughput or IOPS profile. Compared with 30.72TB, it usually delivers a better balance of usable capacity, acquisition cost, and fleet-level efficiency, while avoiding overprovisioning for many deployments. It is especially well suited for mid-to-large virtualization clusters, such as hosting boot and application volumes for roughly 140 to 180 general-purpose virtual machines.

FAQ