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| Brand | Micron |
|---|---|
| Model | RealSSD C400 |
| Capacity | 256GB |
| Usage Class | Client |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" 7mm |
|---|
| NAND Flash | 25nm MLC |
|---|---|
| Drive Writes Per Day | |
| Total Bytes Written | 72 TBW |
| Sequential Read | 500 MB/s |
|---|---|
| Sequential Write | 260 MB/s |
| Random Read IOPS | 45000 |
| Random Write IOPS | 50000 |
| Average Latency | 55 μs |
| Mean Time Between Failures | 1.2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
The Micron RealSSD C400 MTFDDAK256MAM is best suited for read-intensive server boot tiers, VDI images, and CDN edge cache nodes that need a drop-in SATA 6Gb/s SSD with strong low-latency performance, delivering up to 500/260 MB/s and 45K/50K random read/write IOPS in a 256GB footprint. Its 25nm MLC NAND and 72 TB endurance make it a stronger choice than typical client-grade SATA SSDs for mixed read/write enterprise edge workloads, especially where sustained random-write responsiveness and proven MLC durability matter more than raw capacity.
With an endurance rating of 72 TBW, the MTFDDAK256MAM can sustain about 72 terabytes of total host writes over its warranted life, which is more than sufficient for typical OS, boot, office, and light application workloads. In practical terms, for a client or embedded system used mainly as a system drive with moderate daily writes, this level of endurance supports long-term, worry-free operation and is well aligned with stable read-centric deployments. From a reliability perspective, the drive is rated at 1.2 million hours MTBF and an UBER of 1.0E-15, meaning the expected unrecoverable bit error rate is tightly controlled and suitable for dependable data handling in mainstream business use. This model does not include power-loss protection (PLP), so while it is a solid choice for systems with normal shutdown control or upstream power backup, applications requiring in-flight write protection during sudden power failure should use platform-level mitigation or consider a PLP-equipped SSD.
1. The SATA 6Gb/s interface ensures broad compatibility with mainstream enterprise servers and storage arrays, making it a practical upgrade path for legacy SATA infrastructure without platform changes.
2. With sequential read performance up to 500 MB/s, this drive accelerates boot storms, backup restores, and large-file access in read-heavy business applications.
3. Its 45,000 random-read IOPS, paired with 55 µs typical latency, helps databases and virtualized workloads respond faster under highly fragmented, transaction-driven access patterns.
4. A durability rating of [dwpd] DWPD enables predictable write endurance for always-on enterprise workloads, supporting sustained daily write activity across the warranty period.
5. Built on 25nm MLC NAND, the drive balances stronger endurance and data retention than TLC-based alternatives, making it well suited for mixed-use enterprise environments.
For MPN MTFDDAK256MAM, the nearest lower-capacity option in the same family is typically 128GB, and the next higher-capacity option is 512GB. In this series, sequential read/write performance and random IOPS are generally kept in a similar enterprise-grade range across these capacities, so the main difference is usable space and cost efficiency. Capacity positioning analysis: The 256GB MTFDDAK256MAM sits at the sweet spot of the series. Compared with the 128GB model, it offers much better headroom for OS, logs, swap, and application growth, reducing early capacity pressure. Compared with the 512GB version, it preserves nearly the same enterprise-class performance profile while delivering a more balanced acquisition cost per node. This makes it especially suitable for mid-scale deployments, such as boot and application storage for around 40 to 60 virtualized infrastructure nodes or a compact private cloud cluster.
Q: Is MTFDDAK256MAM suitable for a write-heavy database server?
A: MTFDDAK256MAM is generally not the best choice for a write-heavy database server. Its 72TBW endurance and 25nm MLC design make it better suited to read-intensive or mixed workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 72TBW and 256GB capacity, the drive supports about 281 total full drive writes. That equals roughly 0.26 DWPD over 3 years, or about 0.15 DWPD over 5 years.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, this model does not include power loss protection. PLP is critical in enterprise environments because it helps prevent in-flight data loss and reduces metadata or file system corruption during outages.
Q: What RAID level is recommended for this SSD?
A: For most business deployments, RAID 1 or RAID 10 is recommended for this SSD. They provide redundancy and strong read performance, while RAID 10 is better for higher write activity.