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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" 9.5mm |
|---|
| 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 (MTFDDAC128MAM-1J1) is best suited for read-centric server boot, VDI image, and edge content-cache workloads where its SATA 6Gb/s interface, 500/175 MB/s sequential performance, and 45,000/35,000 IOPS deliver a clear responsiveness advantage over typical entry SATA SSDs. Its 25nm MLC NAND and 72 TBW endurance also make it a stronger choice than many same-class client-oriented drives for mixed read/write duty cycles that need dependable latency and more predictable longevity.
With an endurance rating of 72 TBW, the MTFDDAC128MAM-1J1 can sustain approximately 20 GB of host writes per day for 10 years, which is well aligned with typical OS boot, embedded, and light client workloads. In practical terms, for use cases such as a system drive or read-intensive application drive, this level of endurance provides a comfortable lifespan under normal daily operation. From a reliability perspective, the specified UBER of 1.0E-15 indicates a very low probability of unrecoverable bit errors, supporting dependable data reads across the drive’s service life, while the 1.2 million-hour MTBF further reflects solid long-term device reliability. This model does not include power-loss protection (PLP), so it is best suited for applications where unexpected power interruption risk is controlled at the system level, such as designs with stable power architecture or external backup power support.
1. The SATA 6Gb/s interface, paired with full-link sequential read performance, makes this drive an easy drop-in upgrade for legacy enterprise platforms that need faster boot, backup, and bulk data access without changing server backplanes.
2. Its 500 MB/s sequential read speed helps shorten dataset loading, VM startup, and large-file retrieval times, improving throughput in read-centric business applications.
3. With 45,000 random-read IOPS, the drive can sustain responsive access to small scattered records, making it well suited for virtualization, metadata lookup, and transactional workloads.
4. The [dwpd] DWPD endurance rating translates into predictable write lifespan under continuous enterprise duty cycles, supporting capacity planning and reducing replacement risk in write-active deployments.
5. Built on 25nm MLC NAND and delivering a typical latency of 55 µs, the drive balances stronger endurance with consistently fast response, helping enterprise systems maintain stable QoS under mixed workloads.
Lower capacity reference: 64GB Higher capacity reference: 256GB In this series, the 128GB model sits at the practical sweet spot. Compared with the 64GB version, it offers much better headroom for OS growth, logs, patches, and overprovisioning, reducing capacity pressure in always-on enterprise use. Compared with the 256GB model, it keeps acquisition cost and power budget under tighter control while delivering essentially similar sequential throughput and random IOPS for mainstream workloads. This makes 128GB a balanced choice for small to mid-sized deployments, such as boot and cache drives for a compact virtualization cluster or a fleet of database edge nodes.
Q: Is MTFDDAC128MAM-1J1 suitable for a write-heavy database server?
A: Not ideal for write-heavy database workloads. With 25nm MLC NAND, 72TB TBW, and no power loss protection, it fits light-to-moderate enterprise or read-focused applications better than intensive write environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 72TB TBW and 128GB capacity, the drive supports about 562 full-drive writes total. Assuming a 5-year warranty, that equals roughly 0.31 drive writes per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, this model does not include PLP. That matters because PLP helps protect in-flight data and metadata during sudden outages, reducing corruption risk in transactional or enterprise storage environments.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended, depending on capacity and performance needs. These levels provide redundancy and better fault tolerance, which is especially important since this SSD lacks PLP.