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| Brand | Micron |
|---|---|
| Model | RealSSD C400 |
| Capacity | 128GB |
| 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 | 175 MB/s |
| Random Read IOPS | 45000 |
| Random Write IOPS | 35000 |
| 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 128GB (MTFDDAK128MAM) is best suited for read-intensive boot, hypervisor, and edge-cache tiers where its SATA 6Gb/s interface, 500 MB/s read speed, and 45,000/35,000 IOPS deliver noticeably faster system responsiveness than typical 3Gb/s or lower-end client SSDs. With 25nm MLC NAND and 72 TBW endurance, it provides a more durable and predictable choice for always-on infrastructure than consumer-grade alternatives, especially in compact servers and embedded storage nodes that prioritize steady read performance over high-capacity write scaling.
With an endurance rating of 72 TBW, the MTFDDAK128MAM is well suited for typical read-heavy and mixed office workloads, including operating system, application, and boot-drive use. In practical terms, for a standard system disk with moderate daily writes, this level of endurance supports many years of stable service and is sufficient for long-term client or embedded deployment within its 1-year warranty period. From a reliability perspective, the specified UBER of 1.0E-15 indicates a very low uncorrectable bit error rate, helping ensure strong data integrity during normal operation, while the 1.2 million-hour MTBF supports confidence in overall device stability. This model does not include power-loss protection (PLP), so while it remains a dependable choice for non-cache-critical system applications, it is best deployed in environments with controlled shutdown behavior or upstream power safeguards.
1. The SATA 6Gb/s interface ensures broad compatibility with mainstream enterprise servers and storage arrays, enabling straightforward upgrades without changing existing backplane infrastructure.
2. The 500 MB/s sequential read speed accelerates large-block data access, helping databases, boot volumes, and virtual machine images load faster in production environments.
3. The 45,000 random read IOPS capability improves responsiveness for latency-sensitive workloads such as OLTP, VDI, and metadata-heavy enterprise applications.
4. The 25nm MLC NAND provides a balanced mix of endurance, performance consistency, and cost efficiency, making it well suited for sustained business workloads.
5. The 55 µs typical latency supports faster transaction completion and more predictable QoS, which is critical for real-time enterprise services and heavily consolidated systems.
Reference capacities in the same series: Lower capacity: 64GB Higher capacity: 256GB At 128GB, the MTFDDAK128MAM sits at the sweet spot of this enterprise SSD family. Compared with the 64GB option, it provides much better headroom for OS images, logs, swap, and application growth, reducing the risk of early capacity pressure. Compared with the 256GB model, it delivers essentially the same enterprise-class read/write and random IOPS behavior while keeping acquisition cost and overprovisioned capacity more efficient. This makes it especially well suited for dense boot storage clusters, such as supporting around 40–60 lightweight virtualization hosts or edge server nodes.
Q: Is MTFDDAK128MAM suitable for a write-heavy database server?
A: MTFDDAK128MAM is generally not ideal for write-heavy database servers. Its 128GB capacity, 72TB TBW, 25nm MLC NAND, and lack of PLP make it better for lighter enterprise workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 72TB TBW and 128GB capacity, it supports about 0.3 full drive writes per day over a 5-year warranty period, which is modest for sustained write-intensive applications.
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 because it helps prevent in-flight data loss and metadata corruption during unexpected power failures, especially in server environments.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is typically recommended, depending on capacity and performance needs. These levels provide redundancy and better fault tolerance, which is important since this SSD lacks PLP.