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| Brand | Micron |
|---|---|
| Model | M550 |
| Capacity | 128GB |
| Usage Class | Client |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" 7mm |
|---|
| NAND Flash | 2D MLC |
|---|---|
| Drive Writes Per Day | |
| Total Bytes Written | 72 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 350 MB/s |
| Random Read IOPS | 90000 |
| Random Write IOPS | 7500 |
| Average Latency | μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The Micron M550 128GB (MTFDDAK128MAY-1AH1ZABHA) is a strong fit for read-intensive boot volumes, hypervisor OS drives, and edge appliance logging, combining SATA 6Gb/s throughput up to 550/350 MB/s with 2D MLC NAND for more consistent latency and endurance than typical client-grade TLC SSDs in the same capacity class. With 72 TBW, 90,000 random-read IOPS, and Micron’s mature MLC architecture, it delivers a better balance of responsiveness and write durability for always-on infrastructure roles where low-capacity drives often become the reliability bottleneck.
With an endurance rating of 72 TBW, this SSD can sustain 72 terabytes of total host writes over its service life, which is more than sufficient for typical OS boot, application, configuration, and light logging workloads. In practical terms, for a standard system-drive use case with modest daily writes, it can reliably support many years of operation and is well suited for long-term embedded or industrial deployment. From a reliability perspective, integrated power-loss protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving overall system integrity. An UBER of 1.0E-15 indicates a very low unrecoverable bit error rate, while the 1.5 million-hour MTBF further supports dependable enterprise-class operation for procurement teams focused on stability and risk reduction.
1. The SATA interface makes this drive a straightforward drop-in upgrade for legacy enterprise platforms, accelerating deployment without requiring PCIe backplane changes.
2. Its strong sequential read performance helps databases, VM images, and backup datasets load faster, reducing wait time for data-heavy business workflows.
3. The high random read capability is well suited for OLTP, VDI, and metadata-intensive applications where responsive access to small blocks drives user experience.
4. Its enterprise write endurance rating supports sustained daily write workloads with lower replacement risk, making it a safer fit for always-on servers and storage arrays.
5. Built with 2D MLC NAND, it prioritizes predictable performance, stronger write durability, and long-term reliability over low-cost flash designed for lighter duty cycles.
Within this SSD family, the nearest lower capacity is 64GB and the next higher capacity is 256GB, both typically delivering broadly similar enterprise-class sequential read/write throughput and random IOPS to the 128GB model. The 128GB version sits at the practical sweet spot: it offers noticeably more headroom than 64GB for OS images, logs, swap, and application growth, while avoiding the higher acquisition cost of 256GB where extra capacity may go unused. It is best suited for compact but scalable deployments, such as boot and utility storage for roughly 40–60 lightweight application nodes.
Q: Is MTFDDAK128MAY-1AH1ZABHA suitable for a write-heavy database server?
A: Not ideally. While 2D MLC NAND and PLP improve reliability, the 128GB capacity and 72TBW endurance make it better suited to read-intensive or light mixed workloads than sustained write-heavy databases.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 72TBW and 128GB capacity, it supports about 562 full drive writes total. Assuming a 5-year warranty, that equals roughly 0.3 drive writes per day (DWPD).
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and metadata during unexpected outages, reducing corruption risk and improving data integrity in server and storage applications.
Q: What RAID level is recommended for this SSD?
A: RAID 1 is a solid choice for basic redundancy, while RAID 10 is recommended for better performance and fault tolerance. For write-heavy workloads, RAID 10 is generally preferred over RAID 5.