Samsung MZ-WLR3T2B 3.2 TB PM1735a PCIe Gen4 x4 2.5 inch Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM1735a
Capacity	3.2 TB
Usage Class	Mixed Use

Interface

Host Interface	PCIe Gen4 x4
Total Interface Bandwidth	64 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 3D TLC
Drive Writes Per Day	3
Total Bytes Written	17520 TBW

Performance

Sequential Read	7000 MB/s
Sequential Write	3800 MB/s
Random Read IOPS	1450000
Random Write IOPS	250000
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	MZWLL3T2HAJR-00005

Engineer's Note

Compared with the previous-generation MZWLL3T2HAJR-00005, the Samsung PM1735a (MZ-WLR3T2B) advances to PCIe Gen4 x4 and delivers up to 7,000/3,800 MB/s with 1.45M/250K IOPS, giving it a clear generational edge in throughput and low-latency read performance for virtualized databases and scale-out analytics. Its 3.2 TB capacity, Samsung V-NAND 3D TLC, and 3 DWPD endurance rating with 17,520 TBW make it a stronger choice for mixed enterprise workloads that need both higher sustained performance and more write durability than the prior model.

Endurance & Reliability

With an endurance rating of 17,520 TBW, the MZ-WLR3T2B is designed to handle extremely heavy write activity, far beyond the needs of a typical OS, virtualization, or enterprise application boot drive. In practical terms, for common mixed workloads it can provide many years of worry-free service, and its 3 DWPD rating confirms it is built for sustained daily rewriting in demanding environments. For enterprise reliability, built-in power loss protection (PLP) helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving recovery confidence. Its ultra-low UBER of 1.0E-17, together with a 2 million hour MTBF, indicates very strong data integrity and dependable long-term operation expected from datacenter-class SSDs.

Technical Specs & Insights

1. The PCIe Gen4 x4 interface provides enough host bandwidth to keep modern enterprise servers, virtualization clusters, and GPU nodes from being held back by storage throughput.
2. Its class-leading sequential read speed shortens large dataset ingestion, backup recovery, and VM or container image loading in data-intensive environments.
3. The exceptionally high random read performance is ideal for OLTP databases, VDI boot storms, and high-concurrency analytics that depend on fast access to small blocks at scale.
4. With a 3 DWPD endurance profile built on Samsung V-NAND 3D TLC, this drive is designed for mixed-use enterprise deployments that need sustained daily writes without sacrificing service life.
5. The very low typical latency helps cut tail-response times for latency-sensitive services such as real-time transaction processing, metadata lookups, and scale-out cloud applications.

Capacity Sweet

Lower-capacity reference: 1.6 TB Higher-capacity reference: 6.4 TB In this enterprise SSD family, 3.2 TB is the practical sweet spot. Compared with the 1.6 TB option, it gives materially better headroom for VM growth, log expansion, and overprovisioning flexibility, reducing early capacity pressure without changing the expected performance profile. Compared with the 6.4 TB model, it typically delivers a more efficient cost-to-usable-capacity point while preserving essentially the same enterprise-class throughput and IOPS behavior. It is best suited for mid-sized virtualization or database clusters, such as shared system and cache tiers for 40 to 70 business applications.

FAQ