General

Brand	Micron
Model	7400 PRO
Capacity	480GB
Usage Class	Enterprise

Interface

Host Interface	PCIe Gen4 x4
Total Interface Bandwidth	16 Gb/s

Physical Dimension

Form Factor	M.2 2280

Flash & Endurance

NAND Flash	3D TLC
Drive Writes Per Day	1
Total Bytes Written	800 TBW

Performance

Sequential Read	4400 MB/s
Sequential Write	530 MB/s
Random Read IOPS	120000
Random Write IOPS	25000
Average Latency	85 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Engineer's Note

The Micron 7400 PRO 480GB (MTFDKBA480TDZ-1AZ15ABYY) is best suited for read-intensive server boot, hypervisor OS, CDN edge cache metadata, and log/journal tiers where low-latency 120K random read IOPS matter more than bulk write throughput. Compared with typical mixed-use SSDs in this capacity class, it delivers a stronger enterprise value point by combining PCIe Gen4 x4 responsiveness with 1 DWPD / 800 TBW 3D TLC endurance, making it a precise fit for always-on infrastructure with predictable write volumes.

Endurance & Reliability

With an endurance rating of 800 TBW and 1 DWPD, the MTFDKBA480TDZ-1AZ15ABYY is designed to handle writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical OS, boot, logging, and general enterprise application workloads. In practical terms, for common system-disk use, this level of endurance supports many years of stable operation and can comfortably cover long-term deployment scenarios such as a system drive running for up to a decade under normal write patterns. For enterprise reliability, built-in power-loss protection (PLP) helps preserve in-flight data and protects metadata integrity if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low likelihood of unrecoverable bit errors and strong overall dependability for business-critical environments.

Technical Specs & Insights

1. The PCIe Gen4 x4 interface gives this drive enough host-side bandwidth to keep virtualization clusters, analytics nodes, and database servers from being bottlenecked by storage I/O.
2. Its strong sequential read performance accelerates large-file access, reducing dataset loading, backup restore, and media-streaming wait times in enterprise workflows.
3. The high random read capability enables fast response under heavily concurrent access patterns, making it well suited for OLTP databases, VDI, and metadata-intensive applications.
4. With enterprise-class write endurance rated for one full drive rewrite per day, it supports predictable long-term operation in mixed-use environments without overprovisioning for durability.
5. Built on 3D TLC NAND with low typical latency, it balances capacity, consistency, and cost efficiency while helping latency-sensitive workloads deliver quicker transaction and application response times.

Capacity Sweet

Lower capacity reference: 240GB Higher capacity reference: 960GB In this product family, the 480GB model sits at the sweet spot for mainstream enterprise deployment. Compared with the 240GB version, it provides much better headroom for OS images, logs, patch growth, and overprovisioning, reducing early capacity pressure. Compared with the 960GB option, it preserves nearly the same enterprise-class sequential and random I/O behavior while offering a more efficient cost-per-node and easier fleet standardization. It is especially well suited for mid-scale virtualization clusters, such as serving boot and application volumes for about 40–60 light to moderate virtual machines.

FAQ