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 GPU-fed AI data staging, large-scale OLTP databases, and mixed-workload virtualization clusters, where its PCIe Gen5 performance of up to 14,000/10,000 MB/s and 2.8M/700K IOPS keeps latency low under sustained concurrency. With 25.6TB of high-density 3D TLC plus 3 DWPD and 140,160 TBW endurance, it delivers a stronger combination of usable capacity, write endurance, and slot-level throughput than lower-capacity or read-optimized enterprise NVMe drives in the same deployment footprint.

Endurance & Reliability

With an endurance rating of 140,160 TBW and 3 DWPD, this SSD is designed for sustained enterprise write workloads and can support writing its full capacity three times per day over a typical 5-year service life. In practical terms, for common server or OS-boot workloads, this level of endurance provides a very large margin and can be considered more than sufficient for long-term, worry-free deployment. Its enterprise reliability is further strengthened by power loss protection (PLP), which helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption or incomplete writes. An UBER of 1.0E-17, together with a 2.5 million hour MTBF, indicates extremely strong data integrity and dependability, making it well suited for business-critical storage environments.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface provides the bandwidth headroom needed to keep GPU servers, high-speed fabrics, and next-generation storage nodes fed without the SSD becoming a data path bottleneck.
2. With 14,000 MB/s sequential read performance, this drive can dramatically shorten large dataset staging, checkpoint loading, and backup restore windows in data-intensive enterprise environments.
3. Its 2,800,000K random read IOPS enables extremely high transaction concurrency, making it well suited for latency-sensitive databases, virtualized clusters, and large-scale online analytics platforms.
4. Rated for 3 DWPD, it is built to sustain heavy daily overwrite cycles, giving enterprises the endurance confidence required for write-intensive caching, logging, and mixed-workload deployments over the full service life.
5. Combining 3D TLC NAND with a typical latency of 60 µs, the drive balances enterprise-grade capacity efficiency with consistently fast response times for real-time applications and predictable QoS under load.

Capacity Sweet

Lower reference capacity: 15360GB Higher reference capacity: 30720GB Capacity positioning analysis: In this series, 25600GB sits at the practical sweet spot. Compared with the 15360GB model, it gives substantially more headroom for data growth, workload consolidation, and overprovisioning flexibility, making capacity planning less restrictive. Compared with the 30720GB version, it typically delivers a better balance of usable space, acquisition cost, and fleet-wide deployment efficiency while keeping sequential throughput and random IOPS in the same enterprise performance class. It is especially well suited for medium-to-large virtualization clusters, such as shared storage pools for roughly 180 to 250 mixed business application virtual machines.

FAQ