Samsung MZWLO15THBLA-00A07 15.36TB PM1743 NVMe PCIe Gen5 x4 2.5 inch Enterprise Solid State Drive

General

Brand	Samsung
Model	PM1743
Capacity	15.36TB
Usage Class	Enterprise

Interface

Host Interface	NVMe PCIe Gen5 x4
Total Interface Bandwidth	128 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 6th Gen TLC
Drive Writes Per Day	1
Total Bytes Written	28032 TBW

Performance

Sequential Read	13000 MB/s
Sequential Write	6600 MB/s
Random Read IOPS	2500000
Random Write IOPS	250000
Average Latency	80 μs

Reliability

Mean Time Between Failures	2.5 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZWLJ15THALA

Engineer's Note

Compared with the previous-generation MZWLJ15THALA, the Samsung PM1743 (MZWLO15THBLA-00A07) steps up to NVMe PCIe Gen5 x4 and delivers up to 13,000/6,600 MB/s with 2,500,000/250,000 IOPS, giving architects a clear generational gain in host bandwidth and transaction density for latency-sensitive databases, AI data staging, and large-scale virtualization. Its 15.36TB capacity, 1 DWPD rating, 28,032 TBW endurance, and Samsung 6th Gen V-NAND TLC make it a strong choice when you need to consolidate more mixed workloads per drive than the prior platform while maintaining enterprise-class write life and predictable performance.

Endurance & Reliability

With an endurance rating of 28,032 TBW and 1 DWPD, the MZWLO15THBLA-00A07 is built to handle a full drive write every day across its rated service life, which is well aligned with typical enterprise server and storage workloads. In practical terms, for common OS, boot, logging, and mixed read/write application use, this level of endurance provides a very comfortable margin for long-term deployment and helps minimize concerns about write wear in daily operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17 and MTBF of 2.5 million hours indicate a very low probability of unrecoverable bit errors and a design target suited for high-availability environments where data integrity and predictable operation are critical.

Technical Specs & Insights

1. The NVMe PCIe Gen5 x4 interface, paired with 13,000 MB/s sequential read performance, enables ultra-fast dataset streaming and sharply reduces checkpoint, backup, and large-model load times in GPU-dense servers.
2. With 2,500,000 K IOPS random read capability, this SSD sustains massive parallel access for high-concurrency databases, virtualized workloads, and real-time analytics without becoming a storage bottleneck.
3. A 1 DWPD endurance rating makes it a strong fit for read-intensive enterprise deployments that need predictable lifespan under daily full-drive rewrites while keeping infrastructure costs controlled.
4. Samsung V-NAND 6th Gen TLC provides a balanced mix of enterprise-grade density, power efficiency, and write endurance, helping data centers scale capacity without sacrificing reliability.
5. The 80 µs typical latency supports consistently fast response times for latency-sensitive applications such as OLTP, metadata-heavy storage, and AI inference pipelines where microseconds directly affect service quality.

Capacity Sweet

Lower capacity reference: 7.68TB Higher capacity reference: 30.72TB At 15.36TB, this model sits at the sweet spot of the family. Compared with the 7.68TB version, it gives much better headroom for dataset growth, denser VM placement, and longer refresh cycles without changing the expected enterprise-class performance profile. Compared with the 30.72TB option, it usually offers a more efficient balance between acquisition cost, usable capacity, and risk concentration per drive while keeping similar throughput and IOPS behavior. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and primary data volumes for roughly 150 to 250 business application VMs.

FAQ