General

Brand	Micron
Model	9550 MAX
Capacity	12800GB
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	70080 TBW

Performance

Sequential Read	14000 MB/s
Sequential Write	10000 MB/s
Random Read IOPS	3300000
Random Write IOPS	1050000
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 MTFDLAL12T8THB-1BK1DABYYT is purpose-built for latency-sensitive AI training caches, large-scale OLTP databases, and high-concurrency virtualization clusters, combining 12.8TB of 3D TLC with PCIe Gen5 NVMe performance up to 14,000/10,000 MB/s and 3.3M/1.05M IOPS. With 3 DWPD endurance and 70,080 TBW, it delivers a stronger balance of sustained write durability and extreme random-read throughput than typical same-class enterprise SSDs, making it a compelling choice for mixed read/write tier-0 infrastructure.

Endurance & Reliability

With an endurance rating of 70,080 TBW and 3 DWPD, this SSD is built for sustained enterprise write-intensive use, allowing the full drive capacity to be written three times per day across its rated service life. In practical terms, under typical server or system-disk workloads, it provides ample endurance for long-term deployment with a very large margin, making it a dependable choice even in demanding always-on environments. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and metadata if power is unexpectedly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity for business-critical applications, while the 2.5 million-hour MTBF further reflects a design optimized for continuous operation.

Technical Specs & Insights

1. The PCIe Gen5 NVMe architecture provides a next-generation data path that removes storage bottlenecks for GPU servers, real-time analytics, and other throughput-hungry enterprise platforms.
2. Its class-leading sequential read performance accelerates large-block data movement, helping databases, checkpoint recovery, and AI model loading complete noticeably faster.
3. Exceptional random read capability enables ultra-high transaction concurrency, making it ideal for virtualized clusters, metadata-intensive workloads, and latency-sensitive online services.
4. The combination of enterprise-grade write endurance and 3D TLC NAND delivers a strong balance of sustained write resilience, flash density, and cost efficiency for always-on mixed workloads.
5. Very low typical latency improves storage response consistency, supporting faster query completion and more predictable QoS in mission-critical infrastructure.

Capacity Sweet

Same-series reference capacities for MPN MTFDLAL12T8THB-1BK1DABYYT (12,800GB): Lower capacity: 6,400GB Higher capacity: 25,600GB Typical same-series enterprise performance band for both reference SKUs: Sequential read: about 6.8-7.0 GB/s Sequential write: about 5.0-5.6 GB/s Random read: up to about 1,000,000 IOPS Random write: about 180,000-220,000 IOPS Capacity positioning analysis: At 12.8TB, this SKU sits in the sweet spot of the family. Compared with the 6.4TB model, it gives much better headroom for growth, higher workload consolidation, and fewer capacity-driven drive swaps over the platform life cycle. Compared with the 25.6TB model, it usually delivers a more attractive cost balance while keeping essentially the same enterprise-class throughput and IOPS profile. It is especially well suited for mid-scale virtualization or container clusters, such as shared primary storage for roughly 150 to 250 mixed business application instances.

FAQ