General

Brand	Samsung
Model	PM871
Capacity	512GB
Usage Class	Client

Interface

Host Interface	SATA
Total Interface Bandwidth	6 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	TLC V-NAND
Drive Writes Per Day	0.16
Total Bytes Written	150 TBW

Performance

Sequential Read	540 MB/s
Sequential Write	510 MB/s
Random Read IOPS	97000
Random Write IOPS	89000
Average Latency	50 μs

Reliability

Mean Time Between Failures	1.5 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	No

Part Number

MPN	MZ7LN512HCHP

Engineer's Note

Compared with the previous-generation MZ7LN512HCHP, the MZ-7LN512A PM871 delivers a more compelling SATA value point by pairing 540/510 MB/s sequential performance with up to 97,000/89,000 IOPS, giving client and read-heavy enterprise systems better application responsiveness without moving off the SATA platform. Its 512GB TLC V-NAND design and 150 TBW endurance also make it the stronger long-life choice for mainstream boot, VDI, and general-purpose compute nodes that need predictable performance and lower cost per GB than higher-end NVMe alternatives.

Endurance & Reliability

With an endurance rating of 150 TBW and 0.16 DWPD, the MZ-7LN512A is well suited for typical client and light-duty business workloads such as OS boot, office applications, web access, and general data storage. In practical terms, this level of endurance is sufficient for use as a system drive over many years under normal daily write volumes, giving procurement confidence for standard non-write-intensive deployments. The drive’s UBER of 1.0E-15 indicates a controlled and industry-standard unrecoverable bit error rate, supporting dependable read integrity in everyday business use, while the 1.5 million hour MTBF reflects strong overall hardware reliability. This model does not include power-loss protection (PLP), so it is best matched to systems with stable power conditions or external power backup rather than transaction-critical write-caching environments, which helps ensure the right fit and reliable field performance.

Technical Specs & Insights

1. The SATA interface enables straightforward drop-in deployment across widely installed enterprise servers and storage arrays, making upgrades simple without requiring PCIe backplane changes.
2. Its near-SATA-limit sequential read performance helps accelerate boot storms, backup restores, and large file access in read-focused business workloads.
3. Strong random read capability, paired with very low typical latency, supports faster VM responsiveness and more consistent database query performance under mixed access patterns.
4. The modest endurance rating is best aligned with read-centric enterprise use cases such as boot drives, content repositories, and analytics tiers rather than heavy write logging.
5. TLC V-NAND provides a practical balance of capacity, power efficiency, and cost, making it well suited for scale-out deployments where density and budget both matter.

Capacity Sweet

Lower capacity reference: 256GB Higher capacity reference: 1TB Within this SSD family, the 512GB model sits at the sweet spot for mainstream enterprise deployment. Compared with the 256GB option, it provides much better headroom for OS images, application binaries, logs, and growth over time, reducing early capacity pressure. Compared with the 1TB version, it preserves nearly the same typical enterprise SATA performance profile while offering a more efficient cost-per-node balance. This makes 512GB especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for around 40 to 60 lightweight virtual machines.

FAQ