General

Brand	Micron
Model	9550 MAX
Capacity	12280GB
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	67232 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 12.28TB (MTFDLAL12T8THB-1BK1DABYYR) is purpose-built for latency-sensitive AI training caches, large-scale OLTP databases, and mixed read/write virtualization clusters, combining PCIe Gen5 throughput up to 14,000/10,000 MB/s with 3.3M/1.05M IOPS to remove storage bottlenecks at the host level. With 3 DWPD endurance, 67,232 TBW, and high-density 3D TLC NAND, it delivers a strong balance of sustained write durability and rack-level capacity efficiency for tier-0 enterprise deployments where both performance consistency and lifetime economics matter.

Endurance & Reliability

With an endurance rating of 67,232 TBW and 3 DWPD, this SSD is designed for sustained heavy write workloads and can comfortably support enterprise applications that rewrite the full drive capacity multiple times per day over its service life. In typical real-world deployments, this level of endurance means it is far beyond the needs of a standard OS or boot drive and can be used with high confidence for many years, including write-intensive server and storage scenarios. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity if power is suddenly 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 expectations in business-critical environments, while the 2.5 million hour MTBF further reinforces long-term operational dependability.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface provides the bandwidth headroom needed to keep modern GPU servers, high-core-count CPUs, and scale-out storage nodes fed without the bus becoming the bottleneck.
2. Its ultra-fast sequential read performance accelerates data staging, checkpoint loading, backup recovery, and large-file analytics, helping enterprise platforms shorten job start times and restore windows.
3. Extremely high random read capability makes it ideal for latency-sensitive databases, virtualization clusters, and AI feature stores where millions of small requests must be served consistently under heavy concurrency.
4. With enterprise-class TLC flash paired with a robust daily drive-write rating, the drive can sustain demanding mixed and write-intensive workloads while balancing endurance, capacity efficiency, and long-term TCO.
5. A typical latency of just 60 µs helps reduce storage response time at the application layer, improving transaction speed and QoS consistency for real-time services and mission-critical infrastructure.

Capacity Sweet

For the same enterprise SSD family as MTFDLAL12T8THB-1BK1DABYYR 12.28TB, the nearest lower capacity reference is typically 7.68TB, and the nearest higher capacity reference is typically 15.36TB. In this series, sequential read/write performance and random IOPS are generally kept very close across these capacities under standard enterprise positioning. Capacity positioning analysis: At 12.28TB, this model sits in the series sweet spot. Compared with the 7.68TB option, it gives noticeably more headroom for data growth, reducing early capacity pressure in mixed virtualized and database environments. Compared with the 15.36TB option, it usually delivers a more attractive balance of acquisition cost, usable capacity, and steady enterprise performance. It is especially well suited for mid-scale deployments, such as hosting boot, log, and hot-data tiers for about 40 to 60 application or database nodes in a consolidated cluster.

FAQ