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 write-intensive AI data pipelines, large-scale OLTP databases, and high-density virtualization clusters that need both extreme throughput and sustained endurance, combining PCIe Gen5 performance up to 14,000/10,000 MB/s with 2.8M/700K IOPS and 3 DWPD durability. Its standout value at this capacity point is the rare combination of 25.6TB usable flash, 140,160 TBW endurance, and 3D TLC consistency, enabling fewer drives per server and higher performance per U.

Endurance & Reliability

With an endurance rating of 140,160 TBW and 3 DWPD, this SSD is designed for sustained, write-intensive enterprise workloads and can handle the equivalent of writing its full capacity three times per day throughout its rated service life. In typical use cases such as OS boot, application hosting, logging, caching, or mixed data-center workloads, this level of endurance provides substantial headroom and supports long-term, worry-free deployment. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned downtime. Its UBER of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity for mission-critical environments, while the 2.5 million-hour MTBF further reflects a robust design intended for dependable operation.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface gives this drive the bandwidth headroom needed to keep GPU servers, high-core-count CPUs, and modern storage fabrics fed without becoming a data-path bottleneck.
2. Its sequential read performance accelerates large-block workloads such as AI model loading, checkpoint restore, data lake scans, and analytics startup, cutting wait time for bandwidth-intensive jobs.
3. Its random read capability is built for highly concurrent OLTP databases, virtualization clusters, and large-scale metadata services, sustaining fast response even under heavy mixed-user access.
4. With enterprise-class endurance and 3D TLC NAND, it balances write resilience, capacity efficiency, and predictable lifecycle cost for always-on transactional and cloud infrastructure deployments.
5. Its typical latency supports tighter QoS and faster tail-response behavior, which is critical for real-time analytics, high-frequency transaction paths, and latency-sensitive multi-tenant platforms.

Capacity Sweet

Lower capacity reference: 15360GB Higher capacity reference: 30720GB At 25600GB, this SSD sits in the sweet spot of the family. Compared with the 15360GB option, it gives meaningfully more headroom for data growth, cache expansion, and higher VM density without forcing an early capacity refresh. Compared with the 30720GB model, it typically delivers a better balance of acquisition cost, usable capacity, and broadly similar enterprise performance characteristics. This makes 25600GB especially well suited for mid-scale virtualization clusters, mixed database and analytics nodes, or as a dense shared storage tier for roughly 150 to 250 business application instances.

FAQ