Samsung MZ-WLR30TB 30.72 TB PM1733a PCIe Gen4 x4 U.3 (2.5") Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM1733a
Capacity	30.72 TB
Usage Class	Read Intensive

Interface

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

Physical Dimension

Form Factor	U.3 (2.5")

Flash & Endurance

NAND Flash	Samsung V-NAND 6th-Gen 128-layer 3D TLC
Drive Writes Per Day	1
Total Bytes Written	56064 TBW

Performance

Sequential Read	7000 MB/s
Sequential Write	3800 MB/s
Random Read IOPS	1450000
Random Write IOPS	160000
Average Latency	95 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	MZWLR30THBLA-00AHI

Engineer's Note

Compared with the previous MZWLR30THBLA-00AHI, the MZ-WLR30TB PM1733a brings a clear generational step in capacity density and PCIe Gen4 x4 performance, delivering 30.72TB with up to 7,000/3,800 MB/s and 1.45M/160K IOPS on Samsung 6th-Gen 128-layer V-NAND TLC. It is a strong fit for read-intensive scale-out storage, analytics, and virtualization clusters that need to maximize TB per slot without sacrificing enterprise endurance, backed by 1 DWPD and 56,064 TBW.

Endurance & Reliability

With an endurance rating of 56,064 TBW and 1 DWPD, the MZ-WLR30TB is built to sustain writing its full capacity every day across its service life, which is far beyond the demands of typical OS, boot, application, and mixed enterprise workloads. In practical terms, for lighter-duty roles such as a system drive, read-heavy server storage, or general infrastructure use, this level of endurance provides long-term headroom and can support many years of reliable operation with confidence. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity during an unexpected power interruption, reducing the risk of corruption and unplanned recovery events. Its UBER rating of 1.0E-17 means the probability of an uncorrectable bit error is extremely low, supporting high data integrity standards required in business-critical storage environments.

Technical Specs & Insights

1. The PCIe Gen4 x4 interface provides the bandwidth headroom needed to keep modern servers, virtualization clusters, and data-intensive applications fed without creating a storage bottleneck.
2. With sequential read performance of 7000 MB/s, this SSD accelerates large-file streaming, database snapshots, and analytics dataset loading to reduce job start times in enterprise environments.
3. Delivering 1,450,000K random read IOPS, it is well suited for high-concurrency OLTP, metadata-heavy workloads, and large-scale VDI deployments where fast small-block access directly improves user responsiveness.
4. A 1 DWPD endurance rating enables predictable daily full-drive writes over the service life, making it a practical fit for mixed-read/write enterprise workloads that require both performance and controlled wear.
5. Samsung 6th-Gen 128-layer 3D TLC V-NAND, paired with a typical latency of 95 µs, helps ensure dense flash efficiency with consistently fast response times for latency-sensitive cloud and transactional applications.

Capacity Sweet

Lower capacity: 15.36 TB Higher capacity: 61.44 TB At 30.72 TB, this SSD sits in the sweet spot of the family. Compared with the 15.36 TB model, it offers much more headroom for dataset growth, denser VM placement, and longer refresh cycles without materially changing enterprise-class sequential or random performance behavior. Compared with the 61.44 TB option, it usually delivers a better balance of acquisition cost, usable capacity, and risk concentration per drive. It is especially well suited for mid-to-large virtualization clusters, scale-out storage nodes, and high-density database or analytics tiers.

FAQ