Samsung MZ-7LM480NE 480GB PM863a SATA 6Gb/s 2.5 inch Enterprise Solid State Drive

General

Brand	Samsung
Model	PM863a
Capacity	480GB
Usage Class	Enterprise

Interface

Host Interface	SATA 6Gb/s
Total Interface Bandwidth	6 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 3bit MLC (TLC)
Drive Writes Per Day	1.3
Total Bytes Written	683 TBW

Performance

Sequential Read	520 MB/s
Sequential Write	480 MB/s
Random Read IOPS	97000
Random Write IOPS	24000
Average Latency	120 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZ-7LM4800

Engineer's Note

Compared with the MZ-7LM4800, the MZ-7LM480NE PM863a advances to Samsung V-NAND 3-bit MLC and delivers a stronger enterprise SATA profile with 683 TBW (1.3 DWPD), up to 97,000/24,000 IOPS, and 520/480 MB/s throughput for mixed read-heavy workloads. Its unique value in the 480GB class is combining near–SATA-limit performance with higher write endurance than typical read-intensive TLC drives, making it a better choice for boot, virtualization, and scale-out server tiers that need predictable latency and longer service life.

Endurance & Reliability

With 683 TBW and a 1.3 DWPD rating, the MZ-7LM480NE offers strong write endurance for a 480GB-class enterprise SSD, meaning it can sustain the equivalent of writing its full capacity more than once per day across the warranty period. In typical OS boot, application, logging, and mixed business workloads, this level of endurance is more than sufficient for long-term use and can comfortably support a system-drive role for many years without endurance concerns. Its enterprise reliability is further strengthened by built-in Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity during an unexpected power interruption. Combined with an UBER of 1.0E-17 and a 2 million hour MTBF, the drive is designed for very low uncorrectable error rates and dependable operation in business-critical environments.

Technical Specs & Insights

1. The SATA interface, paired with near bus-saturating sequential read performance, enables straightforward drop-in upgrades for legacy enterprise servers and storage arrays without bottlenecking bulk data access.
2. Its strong random read capability helps virtualized workloads, metadata-heavy applications, and busy databases return small-block data quickly under high concurrency.
3. The endurance profile supports consistent daily full-drive rewrites in write-active business environments, making it suitable for mixed-use enterprise deployments rather than read-only tiers.
4. Samsung V-NAND based on TLC technology balances flash density, power efficiency, and cost, giving organizations dependable enterprise flash capacity at a more economical price point.
5. The low typical latency helps reduce application response time variance, which is especially valuable for transactional systems and latency-sensitive service delivery.

Capacity Sweet

Lower capacity reference: 240GB Higher capacity reference: 960GB In this series, the 480GB model is the practical sweet spot. Compared with the 240GB version, it provides much better headroom for OS growth, logs, patches, and application data, reducing early capacity pressure in always-on enterprise environments. Compared with the 960GB version, it usually delivers the most attractive balance between acquisition cost, usable capacity, and performance consistency, since sequential throughput and random IOPS stay broadly similar across capacities. It is especially well suited for mid-scale deployments, such as hosting boot and service volumes for about 30 to 50 virtualized business workloads.

FAQ