General

Brand	Micron
Model	M500DC
Capacity	480GB
Usage Class	Mixed Use

Interface

Host Interface	SATA
Total Interface Bandwidth	6 Gb/s

Physical Dimension

Form Factor	1.8

Flash & Endurance

NAND Flash	20nm MLC
Drive Writes Per Day	2.2
Total Bytes Written	1900 TBW

Performance

Sequential Read	425 MB/s
Sequential Write	375 MB/s
Random Read IOPS	63000
Random Write IOPS	35000
Average Latency	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 M500DC 480GB (MTFDDAA480MBB) is best suited for write-intensive boot, logging, and metadata tiers in always-on SATA servers, where its 20nm MLC NAND, 2.2 DWPD, and 1,900 TBW deliver materially higher endurance than typical read-centric SATA SSDs in the same capacity class. With up to 425/375 MB/s sequential throughput and 63,000/35,000 IOPS, it gives legacy SATA platforms a balanced mix of sustained write durability and low-latency transactional performance without moving to a SAS or PCIe architecture.

Endurance & Reliability

With an endurance rating of 1,900 TBW and 2.2 DWPD, the MTFDDAA480MBB is designed to sustain heavy daily write activity throughout its service life, making it well suited for write-intensive enterprise workloads. In typical system-disk or mixed-use deployments, this level of endurance means the drive can operate for many years with substantial margin, providing confidence for long-term, stable use. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is unexpectedly interrupted. Its UBER specification of 1.0E-16 indicates a very low uncorrectable bit error rate, supporting high data integrity expectations in business-critical storage environments.

Technical Specs & Insights

1. The SATA interface ensures broad compatibility with mainstream enterprise servers and storage arrays, making this drive a low-risk upgrade for legacy infrastructure refreshes.
2. With 425 MB/s sequential read performance, the drive accelerates boot volumes, log replay, and large-file retrieval in read-heavy business applications.
3. Delivering 63,000 random-read IOPS, it helps databases and virtualized workloads respond faster under highly fragmented, multi-user access patterns.
4. Rated for 2.2 DWPD, the drive is built to sustain frequent full-drive rewrites, making it well suited for write-intensive enterprise use such as OLTP and caching tiers.
5. The 20nm MLC NAND provides a stronger balance of endurance, data integrity, and performance consistency than consumer-focused flash, supporting 24/7 datacenter duty cycles.

Capacity Sweet

Lower capacity reference: 240GB Higher capacity reference: 960GB In this series, the 480GB model sits in the sweet spot between entry capacity and higher-density deployment. Compared with the 240GB version, it gives much better headroom for OS images, logs, patch growth, and application overhead, reducing early capacity pressure. Compared with the 960GB option, it preserves nearly the same enterprise-class read/write and random IOPS behavior while offering a more balanced cost per drive and easier budget scaling. It is best suited for mid-sized virtualization clusters, such as boot and utility storage for about 40 to 60 virtual machines.

FAQ