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

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 write-intensive AI feature stores, large-scale OLTP databases, and high-ingest analytics clusters, combining PCIe Gen5 bandwidth with up to 14,000/10,000 MB/s sequential performance and 2.8M/700K IOPS to keep latency low under mixed workloads. Its 3 DWPD endurance, massive 140,160 TBW rating, and dense 3D TLC design make it a standout choice over typical capacity-optimized enterprise SSDs when you need both extreme throughput and sustained write durability in a single U.2 drive.

Endurance & Reliability

With an endurance rating of 140,160 TBW and 3 DWPD, this SSD is designed to sustain very heavy daily write workloads across its service life, making it well suited for write-intensive enterprise applications. In practical terms, under typical server or system-disk usage, it provides ample endurance headroom for many years of stable operation, so buyers can deploy it with confidence for long-term production workloads. Its enterprise reliability is further strengthened by power-loss protection (PLP), which helps preserve in-flight data and maintain metadata integrity if power is interrupted unexpectedly. An UBER of 1.0E-17 means an extremely low probability of unrecoverable bit errors during reads, supporting high data integrity standards required in business-critical storage environments.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface provides the bandwidth headroom needed to keep GPU clusters, high-core-count servers, and scale-out storage platforms fully utilized under modern enterprise workloads.
2. Its class-leading sequential read performance accelerates checkpoint loading, large database scans, and analytics pipelines, reducing wait time for data-intensive applications.
3. The exceptionally high random read capability enables dense virtualization, low-latency OLTP, and metadata-heavy workloads to sustain responsiveness even under massive parallel access.
4. A 3 DWPD endurance rating makes it a strong fit for write-intensive enterprise use cases such as logging, caching, and mixed-workload databases where predictable lifespan matters.
5. Built with 3D TLC NAND and tuned for very low typical latency, the drive balances cost-efficient capacity with consistent QoS for transactional systems and latency-sensitive cloud services.

Capacity Sweet

Lower capacity reference: 15.36TB Higher capacity reference: 30.72TB Capacity positioning analysis: Within this SSD family, 25.6TB sits at a strong sweet spot. Compared with the 15.36TB version, it offers much better capacity headroom for growth, higher storage density per server, and more room for dataset consolidation without changing the overall enterprise performance class for sequential read/write or random IOPS. Compared with the 30.72TB option, it typically gives a more attractive balance between acquisition cost, usable capacity, and deployment efficiency. It is especially well suited for mid-to-large virtualization clusters, such as shared storage for roughly 180 to 260 mixed enterprise workloads.

FAQ