General

Brand	Micron
Model	9550 MAX
Capacity	25600GB
Usage Class	Enterprise

Interface

Host Interface	PCIe Gen5 NVMe
Total Interface Bandwidth	32 Gb/s

Physical Dimension

Form Factor	U.2 15mm

Flash & Endurance

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

Performance

Sequential Read	14000 MB/s
Sequential Write	10000 MB/s
Random Read IOPS	2800000
Random Write IOPS	700000
Average Latency	60 μs

Reliability

Mean Time Between Failures	2.5 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Engineer's Note

The Micron 9550 MAX 25.6TB is purpose-built for AI/ML feature stores, large-scale OLTP databases, and mixed read/write analytics tiers that need both extreme throughput and write endurance, combining PCIe Gen5 performance up to 14,000/10,000 MB/s with 2.8M/700K IOPS to keep GPUs and high-core-count servers fed at low latency. Compared with typical enterprise TLC SSDs in its class, its 3 DWPD rating and 140,160 TBW deliver a stronger fit for write-intensive 24×7 deployment, while the 25.6TB capacity improves rack-level density and reduces drive count for better power and slot efficiency.

Endurance & Reliability

With an endurance rating of 140,160 TBW and 3 DWPD, this SSD is designed for sustained write-intensive enterprise workloads, allowing the full drive capacity to be written three times per day throughout its rated service life. In typical real-world use, this level of endurance is far beyond the needs of a boot or system drive and provides long-term confidence for continuous operation, including multi-year deployment with substantial write activity. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and maintain metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17, together with a 2.5 million hour MTBF, indicates a very low probability of uncorrectable bit errors and supports dependable operation in business-critical storage environments.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface, paired with class-leading sequential throughput, keeps GPU servers and analytics nodes fed with data fast enough to cut checkpoint loading, backup windows, and large-scale dataset staging time.
2. With up to 2.8M random-read IOPS, this drive can absorb highly concurrent database, virtualization, and metadata-heavy cloud workloads without becoming a storage bottleneck.
3. A 3 DWPD endurance rating makes it a strong fit for write-intensive enterprise deployments such as OLTP, logging, caching, and software-defined storage that rewrite data every day.
4. Built on 3D TLC NAND, it delivers the capacity, efficiency, and predictable reliability enterprises need to scale performance-sensitive infrastructure without the cost premium of more specialized flash.
5. Its 60 µs typical latency helps latency-sensitive applications respond more consistently, improving tail-latency behavior in real-time analytics, high-frequency transaction paths, and busy multi-tenant environments.

Capacity Sweet

Lower capacity reference: 15360GB Higher capacity reference: 30720GB In this series, the 25600GB model sits at a strong sweet spot. Compared with the 15360GB option, it offers much better headroom for dataset growth, denser VM placement, and longer refresh cycles without quickly running into capacity limits. Compared with the 30720GB version, it typically delivers a more attractive cost per deployment while maintaining essentially the same enterprise-class sequential throughput and random IOPS behavior. This makes 25600GB especially well suited for mid-to-large virtualization clusters, mixed database nodes, or high-density read-centric analytics storage pools.

FAQ