Samsung MZWLR6T4HALA-00AD3 6.4 TB PM1735 PCIe Gen4 x8 2.5 inch Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM1735
Capacity	6.4 TB
Usage Class	Mixed Use

Interface

Host Interface	PCIe Gen4 x8
Total Interface Bandwidth	128 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 5th-Gen TLC
Drive Writes Per Day	3
Total Bytes Written	35040 TBW

Performance

Sequential Read	7000 MB/s
Sequential Write	3800 MB/s
Random Read IOPS	1450000
Random Write IOPS	260000
Average Latency	95 μs

Reliability

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

Part Number

MPN	MZWLR6T4HBJR-00AD9

Engineer's Note

Compared with the previous-generation MZWLR6T4HBJR-00AD9, the PM1735 MZWLR6T4HALA-00AD3 moves to a PCIe Gen4 x8 architecture with Samsung 5th-Gen TLC V-NAND, delivering up to 7,000/3,800 MB/s sequential performance and 1,450,000/260,000 IOPS for clearly higher bandwidth and stronger transaction responsiveness. At 6.4 TB with 3 DWPD and 35,040 TBW, it is a stronger fit than its predecessor for write-intensive virtualization, high-frequency database logging, and scale-out analytics nodes that need both top-tier throughput and sustained enterprise endurance.

Endurance & Reliability

With an endurance rating of 35,040 TBW and 3 DWPD, the MZWLR6T4HALA-00AD3 is built for sustained enterprise write workloads and can comfortably handle frequent daily rewrites throughout its service life. In typical deployment, this level of endurance means it can serve as a heavily used boot, caching, or application drive for many years, and for lighter system-disk workloads it can operate with ample margin for up to a decade. Its enterprise reliability is further strengthened by power loss protection, which helps preserve in-flight data and metadata during an unexpected outage, reducing the risk of corruption and unplanned recovery events. The UBER rating of 1.0E-17 indicates an extremely low probability of unrecoverable bit errors, and together with the 2 million hour MTBF, it provides the level of data integrity and operational stability expected in business-critical environments.

Technical Specs & Insights

1. The PCIe Gen4 x8 interface, paired with top-tier sequential bandwidth, removes storage as a bottleneck for large dataset streaming, rapid checkpoint loading, and high-speed analytics pipelines.
2. Its exceptional random read performance accelerates heavily parallel OLTP databases, virtual desktop farms, and metadata-intensive cloud workloads where millions of small requests must be served without queue buildup.
3. A 3 DWPD endurance rating makes it well suited for write-intensive enterprise deployments such as logging, caching, and mixed database workloads that demand predictable lifespan under sustained daily churn.
4. Samsung’s 5th-Gen V-NAND TLC balances enterprise-grade capacity, efficiency, and consistency, enabling lower cost per usable terabyte without sacrificing the reliability needed in always-on data center environments.
5. With typical latency kept to 95 µs, the drive helps time-sensitive applications respond faster and maintain steadier QoS, which is critical for transactional systems and latency-aware virtualized infrastructure.

Capacity Sweet

For MPN MZWLR6T4HALA-00AD3, the nearest reference capacities in the same enterprise SSD family are: Lower capacity: 3.2 TB Higher capacity: 12.8 TB At 6.4 TB, this model sits in the sweet spot of the series. Compared with the 3.2 TB version, it gives much better headroom for data growth, VM density, and overprovisioning flexibility without changing the expected enterprise-class sequential or random performance profile. Compared with the 12.8 TB option, it usually delivers the best balance of usable capacity, acquisition cost, and fleet-wide budget efficiency. It is well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for about 60 to 80 business VMs.

FAQ