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| Brand | Samsung |
|---|---|
| Model | PM871b |
| Capacity | 256GB |
| Usage Class | Client |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | M.2 |
|---|
| NAND Flash | TLC V-NAND |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 75 TBW |
| Sequential Read | 540 MB/s |
|---|---|
| Sequential Write | 500 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 88000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZYLN256HCHP |
|---|
Compared with the previous-generation MZYLN256HCHP, the PM871b MZNLN256HAJQ-000D1 brings a newer TLC V-NAND SATA platform that reaches up to 540/500 MB/s and 97K/88K IOPS, delivering stronger low-queue-depth responsiveness and better overall client-system balance in the same SATA deployment model. With 75 TBW and 0.3 DWPD at 256GB, it offers a well-optimized mix of endurance, OEM reliability, and near-interface-limit SATA throughput for notebook, desktop, and embedded boot-drive refreshes.
With an endurance rating of 75 TBW, this 256GB SSD is well suited for typical client and system-drive workloads, such as OS, applications, office files, and general business use. In practical terms, that write budget is usually more than enough for many years of normal daily operation, making it a dependable choice for boot-drive and read-focused deployments. For reliability, the drive is rated at 1.5 million hours MTBF and an UBER of 1.0E-15, meaning the expected rate of unrecoverable read errors is very low and aligned with standard SSD reliability expectations for mainstream deployments. This model does not include hardware power-loss protection (PLP), so it is best suited for systems with stable power or higher-level data protection rather than write-critical environments where in-flight data must be preserved during sudden power loss.
1. The SATA interface, paired with near-bus-limit sequential read performance, makes this drive a practical drop-in upgrade for legacy enterprise servers and storage arrays that need faster boot, restore, and data streaming without platform changes.
2. Its strong random read capability helps VDI, web hosting, and database workloads respond faster under heavy concurrent access, improving user experience when many small files or records are requested at once.
3. The 0.3 DWPD endurance profile is well suited for read-centric enterprise deployments such as content delivery, boot volumes, analytics replicas, and archival tiers where capacity efficiency matters more than sustained write intensity.
4. TLC V-NAND provides a balanced mix of cost, density, and reliability, enabling enterprises to scale flash capacity economically for mainstream workloads without moving to a premium endurance class.
5. A typical latency of 50 µs supports quicker transaction handling and more predictable application responsiveness, which is especially valuable for virtualization and latency-sensitive read paths.
Reference capacities in the same series: Lower capacity: 128GB Higher capacity: 512GB Capacity positioning analysis: The 256GB model sits at the sweet spot of this SSD family. Compared with the 128GB version, it offers much better space headroom for OS images, logs, application binaries, and moderate data growth, reducing the risk of early capacity pressure. Compared with the 512GB version, it keeps acquisition cost and per-node storage spend under tighter control while still delivering essentially the same mainstream enterprise read/write and random IOPS profile. It is best suited for small to mid-size virtualization clusters, such as hosting boot and application volumes for about 20 to 30 light business workloads.
Q: Is MZNLN256HAJQ-000D1 suitable for a write-heavy database server?
A: No. This 256GB SATA TLC V-NAND SSD is rated at 0.3 DWPD and 75 TBW, which is better suited for read-focused or mixed, light-write workloads than write-heavy database servers.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Its endurance rating is 0.3 DWPD, meaning it supports about 0.3 full drive writes per day during the warranty period. For 256GB capacity, that equals roughly 76.8GB of writes daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. Power loss protection is critical in enterprise environments because it helps prevent in-flight data loss and reduces metadata or file system corruption during sudden outages.
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 improve redundancy and availability, which is especially important since this model does not include PLP.