General

Brand	Micron
Model	9550 MAX
Capacity	6400GB
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	35040 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 6.4TB (MTFDLAL6T4THB-1BK1DABYYR) is purpose-built for latency-sensitive AI data pipelines, large-scale OLTP databases, and high-density virtualization clusters that need sustained write endurance, combining PCIe Gen5 performance up to 14,000/10,000 MB/s with 3.3M/1.05M IOPS and 3 DWPD durability. Compared with typical enterprise TLC SSDs in the same class, it stands out by pairing very high random throughput with an exceptional 35,040 TBW rating, making it a stronger choice for mixed read/write deployments where both peak speed and long service life are critical.

Endurance & Reliability

With an endurance rating of 35,040 TBW and 3 DWPD, this 6.4TB SSD is designed to sustain very heavy write-intensive enterprise workloads throughout its service life. In practical terms, it can support rewriting the full drive capacity three times per day over the warranty period, and under typical mixed or system-boot workloads it provides ample headroom for many years of stable operation. For enterprise reliability, built-in power-loss protection helps preserve in-flight data and mapping tables during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its 1.0E-17 UBER indicates an extremely low unrecoverable bit error rate, while the 2.5 million hour MTBF further reflects a platform engineered for dependable data center deployment.

Technical Specs & Insights

1. The PCIe Gen5 NVMe architecture, paired with ultra-high sequential bandwidth, accelerates checkpoint loading, backup streaming, and large-scale data ingestion for AI and analytics clusters.
2. With up to 3.3M random-read IOPS, the drive sustains extremely dense VM, database, and metadata-heavy workloads without becoming a bottleneck under peak concurrency.
3. A 3 DWPD endurance rating makes it well suited for write-intensive enterprise environments such as OLTP, caching tiers, and mixed-use infrastructure that must absorb frequent full-drive rewrites.
4. Built on 3D TLC NAND, it balances enterprise-grade endurance, capacity efficiency, and consistent QoS, making it a strong fit for mainstream datacenter deployment at scale.
5. Typical latency of 60 µs helps reduce tail-response times in latency-sensitive applications, improving transaction speed and service predictability for real-time platforms.

Capacity Sweet

Lower capacity reference: 3.2TB Higher capacity reference: 12.8TB Within this product family, the 6.4TB model sits at the practical sweet spot between the 3.2TB and 12.8TB options. Versus 3.2TB, it provides much better space elasticity for dataset growth, overprovisioning, and workload consolidation while keeping the expected enterprise-class sequential throughput and random IOPS essentially in the same range. Versus 12.8TB, it avoids the higher acquisition cost and the risk of stranded capacity, yet still delivers ample usable flash per drive. It is especially well suited to a mid-sized virtualization cluster, such as shared storage for about 40 to 60 mixed application and database VMs.

FAQ