General

Brand	Micron
Model	9550 PRO
Capacity	3840GB
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	1
Total Bytes Written	7008 TBW

Performance

Sequential Read	14000 MB/s
Sequential Write	6000 MB/s
Random Read IOPS	3300000
Random Write IOPS	400000
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 PRO 3.84TB (MTFDLAL3T8THA-1BK1DABYYT) is a strong fit for read-intensive AI data pipelines, high-frequency content delivery, and scale-out analytics nodes that need Gen5-class throughput, combining 14,000 MB/s sequential read performance with up to 3.3M random read IOPS on durable 3D TLC NAND. With 1 DWPD and 7,008 TBW, it delivers enterprise-grade endurance for mixed read/write production environments while maximizing host efficiency by keeping latency-sensitive workloads fed at PCIe Gen5 speeds.

Endurance & Reliability

With an endurance rating of 7008 TBW and 1 DWPD, this 3.84TB SSD is designed to handle writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise OS, boot, virtualization, and read-heavy application workloads. In practical terms, under normal system-disk usage it provides a very large write margin and can be deployed with confidence for long-term operation without endurance concerns. For enterprise reliability, built-in power-loss protection helps preserve in-flight data and protect mapping tables during unexpected power interruption, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 indicates an extremely low probability of unrecoverable bit errors during reads, supporting high data integrity expectations in server and data center environments.

Technical Specs & Insights

1. The PCIe Gen5 NVMe interface gives this drive the bandwidth headroom needed to keep GPU servers, high-core-count databases, and scale-out storage nodes fed without the bus becoming a bottleneck.
2. With sequential read performance of 14000 MB/s, it can dramatically shorten dataset staging, checkpoint loading, and large-volume backup restore windows in enterprise environments.
3. Delivering 3,300,000 K IOPS in random reads, it is well suited for latency-sensitive virtualization, metadata-heavy distributed systems, and high-concurrency OLTP workloads.
4. Built on 3D TLC NAND and rated for 1 DWPD, it balances enterprise-class endurance with flash density, making it a practical fit for read-centric and mixed-use deployments that must control cost per terabyte.
5. A typical latency of 60 µs helps reduce storage wait time at the application layer, improving transaction responsiveness and tail-latency consistency for real-time services.

Capacity Sweet

In this product family, the next lower capacity is 1920GB and the next higher capacity is 7680GB, with broadly similar enterprise-class sequential read/write behavior and random IOPS to the 3840GB model. The 3840GB version sits at the sweet spot of the lineup: it offers much more headroom than 1920GB for growth, mixed workloads, and overprovisioning flexibility, while avoiding the higher acquisition cost of 7680GB. That makes it the best balance of capacity efficiency and performance consistency, especially for mid-scale virtualization clusters, database nodes, or roughly 40 to 60 mixed application VMs.

FAQ