Samsung MZWLR1T9HCJR-00A07 1.92 TB PM1733A PCIe Gen4 x4 U.2 (2.5") Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM1733A
Capacity	1.92 TB
Usage Class	Read Intensive

Interface

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

Physical Dimension

Form Factor	U.2 (2.5")

Flash & Endurance

NAND Flash	Samsung V-NAND 6th-Gen 128-layer 3D TLC
Drive Writes Per Day	1
Total Bytes Written	3504 TBW

Performance

Sequential Read	7000 MB/s
Sequential Write	2400 MB/s
Random Read IOPS	800000
Random Write IOPS	100000
Average Latency	85 μs

Reliability

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

Part Number

MPN	MZWLR1T9HCJR-00007

Engineer's Note

Compared with the earlier MZWLR1T9HCJR-00007, the MZWLR1T9HCJR-00A07 is a later PM1733A revision that leverages Samsung 6th-Gen 128-layer V-NAND on PCIe Gen4 x4 to deliver up to 7,000/2,400 MB/s and 800K/100K IOPS, making read-heavy enterprise workloads noticeably more responsive. With 1.92 TB capacity and 3,504 TBW at 1 DWPD, it is the better-fit generation for virtualization, scale-out analytics, and high-throughput application tiers that need stronger Gen4 bandwidth and consistent endurance without moving to a higher-cost high-DWPD drive.

Endurance & Reliability

With an endurance rating of 3,504 TBW and 1 DWPD, the MZWLR1T9HCJR-00A07 is built to support writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise system boot, read-intensive application, and general server workloads. In practical terms, under normal OS, logging, and mixed business usage, this level of endurance provides long-term, worry-free operation and ample write headroom over many years of deployment. For enterprise reliability, integrated Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity during unexpected power interruptions, reducing the risk of corruption and improving operational stability. Its UBER rating of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity expectations in business-critical environments, while the 2 million-hour MTBF further reflects strong overall reliability.

Technical Specs & Insights

1. The PCIe Gen4 x4 interface, paired with up to 7000 MB/s sequential read throughput, enables ultra-fast dataset staging and significantly reduces VM boot, database scan, and analytics load times in bandwidth-intensive servers.
2. With 800,000K random read IOPS, this SSD sustains extremely high transaction concurrency, helping OLTP databases, virtualized clusters, and metadata-heavy workloads respond faster under peak demand.
3. Rated for 1 DWPD, it provides predictable day-after-day write endurance for mainstream enterprise deployments such as mixed-use virtualization, scale-out storage, and read-centric cloud infrastructure.
4. Samsung V-NAND 6th-Gen 128-layer 3D TLC combines high density with mature enterprise flash behavior, delivering a strong balance of capacity efficiency, power optimization, and reliable QoS at scale.
5. A typical latency of 85 µs helps minimize storage wait time, improving application responsiveness and keeping CPUs better utilized in latency-sensitive enterprise systems.

Capacity Sweet

Lower-capacity reference: 960 GB Higher-capacity reference: 3.84 TB At 1.92 TB, the MZWLR1T9HCJR-00A07 sits in the sweet spot of the series. Compared with the 960 GB model, it gives much better headroom for OS, logs, application growth, and mixed workload data without forcing early capacity expansion. Compared with the 3.84 TB option, it usually delivers the most attractive balance of acquisition cost, usable capacity, and enterprise-grade performance consistency. This makes 1.92 TB especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 general-purpose virtual machines.

FAQ