Samsung MZQLB1T9HAJR-00007 1.92 TB PM983 PCIe Gen3 x4 U.2 Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM983
Capacity	1.92 TB
Usage Class	Read Intensive

Interface

Host Interface	PCIe Gen3 x4
Total Interface Bandwidth	8 Gb/s

Physical Dimension

Form Factor	U.2

Flash & Endurance

NAND Flash	Samsung V-NAND 64-layer 3D TLC
Drive Writes Per Day	1.3
Total Bytes Written	2733 TBW

Performance

Sequential Read	3200 MB/s
Sequential Write	2000 MB/s
Random Read IOPS	540000
Random Write IOPS	40000
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	MZQLW1T9HMJP-00003

Engineer's Note

Compared with MZQLW1T9HMJP-00003, the MZQLB1T9HAJR-00007 PM983 moves to Samsung 64-layer 3D TLC V-NAND and delivers a stronger mixed profile at 1.92TB, combining up to 3,200/2,000 MB/s sequential throughput with 540,000/40,000 IOPS for faster cache, virtualization, and scale-out read service tiers. With 1.3 DWPD and 2,733 TBW, it offers a more durable and density-efficient PCIe Gen3 x4 deployment point for data centers that need higher sustained read performance without stepping up to a higher-cost write-intensive class.

Endurance & Reliability

With an endurance rating of 2733 TBW and 1.3 DWPD, this SSD is designed to handle approximately 2.7 petabytes of total writes, which is more than sufficient for typical enterprise OS, boot, application, and read-heavy server workloads. In practical terms, for common system-disk usage patterns, it can operate for many years with ample write margin, giving buyers confidence in long-term deployment stability. Its enterprise-grade reliability is further strengthened by power loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption or incomplete writes. The UBER rating of 1.0E-17, together with a 2 million hour MTBF, indicates an exceptionally low probability of uncorrectable bit errors and a high level of operational reliability for business-critical environments.

Technical Specs & Insights

1. The PCIe Gen3 x4 host interface, paired with strong sequential bandwidth, enables fast bulk data movement, reducing backup windows and accelerating large database or virtual machine image loads in enterprise servers.
2. Its high random read capability sustains responsive performance under heavily mixed workloads, making it well suited for virtualized environments, OLTP databases, and metadata-intensive applications.
3. The endurance profile supports consistent daily full-drive rewrite activity over years of deployment, giving enterprises a reliable balance between write tolerance and cost efficiency for mainstream data center use.
4. Samsung’s 64-layer 3D TLC V-NAND provides mature density and power characteristics, helping operators scale capacity economically without sacrificing predictable enterprise-class behavior.
5. The low typical latency helps applications access hot data with minimal wait time, improving transaction responsiveness and reducing tail-latency impact in latency-sensitive production workloads.

Capacity Sweet

Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB Capacity positioning analysis: In this series, the 1.92 TB model sits in the sweet spot between the 960 GB and 3.84 TB options. Compared with 960 GB, it offers much better headroom for OS images, application data, logs, and short-term growth, reducing early capacity pressure. Compared with 3.84 TB, it delivers nearly the same enterprise-class read/write and random IOPS behavior while keeping acquisition cost and fleet-level budgeting more efficient. It is especially well suited for mid-scale virtualization clusters, such as hosting system and boot volumes for about 40 to 60 virtual machines.

FAQ