Samsung MZ-QLB1T90 1.92 TB PM983 PCIe Gen3 x4 U.2 Read Intensive Solid State Drive

US$528 - $572
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General

BrandSamsung
ModelPM983
Capacity1.92 TB
Usage ClassRead Intensive

Interface

Host InterfacePCIe Gen3 x4
Total Interface Bandwidth8 Gb/s

Physical Dimension

Form FactorU.2

Flash & Endurance

NAND FlashSamsung V-NAND 64-layer 3D TLC
Drive Writes Per Day1.3
Total Bytes Written2733 TBW

Performance

Sequential Read3200 MB/s
Sequential Write2000 MB/s
Random Read IOPS540000
Random Write IOPS40000
Average Latency85 μs

Reliability

Mean Time Between Failures2 Million Hours
Uncorrectable Bit Error Rate1.0×10⁻¹⁷
Power Loss ProtectionYes

Part Number

MPNMZQLB1T9HAJR

Engineer's Note

Compared with the earlier MZQLB1T9HAJR, the MZ-QLB1T90 is the newer PM983 1.92TB enterprise revision, combining Samsung 64-layer V-NAND TLC with PCIe Gen3 x4 performance up to 3,200/2,000 MB/s and 540,000/40,000 IOPS for a stronger balance of throughput and latency in the same capacity class. Its 1.3 DWPD and 2,733 TBW endurance make it a more compelling choice for read-heavy virtualization, scale-out storage, and cloud boot volumes where you need higher enterprise durability than typical mainstream TLC SSDs without moving to a higher-cost mixed-use drive.

Endurance & Reliability

With an endurance rating of 2733 TBW and 1.3 DWPD, the MZ-QLB1T90 is designed to handle sustained daily write activity over its service life, making it well suited for read-intensive to mixed enterprise workloads. In practical terms, for typical OS, boot, application, and general server storage workloads, this level of endurance supports long-term operation with ample write headroom and can comfortably serve as a reliable system drive for many years. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and metadata if power is unexpectedly interrupted, reducing the risk of corruption and improving system integrity. Its UBER of 1.0E-17 and MTBF of 2 million hours further indicate a high level of data reliability and operational stability, giving procurement teams greater confidence in business-critical deployments.

Technical Specs & Insights

1. The PCIe Gen3 x4 NVMe architecture provides the bandwidth needed to keep enterprise servers responsive under heavy transactional and virtualization workloads.
2. Its high sequential read capability accelerates boot storms, large dataset scans, backup recovery, and media streaming pipelines in read-intensive environments.
3. Strong random read performance helps databases, search platforms, and VDI infrastructures serve far more concurrent requests with lower queue buildup.
4. An enterprise-grade endurance profile supports sustained daily write activity with predictable lifespan, making it suitable for mixed-use data center deployments.
5. Samsung’s 64-layer 3D TLC V-NAND, paired with very low typical latency, delivers a balanced combination of capacity efficiency, consistent QoS, and fast application response times.

Capacity Sweet

Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB At 1.92 TB, the MZ-QLB1T90 sits in the sweet spot of this enterprise SSD family. Compared with the 960 GB model, it gives much better headroom for OS images, application data, logs, and growth, reducing early capacity pressure in production. Compared with the 3.84 TB version, it preserves the same class of enterprise performance while offering a more attractive cost profile and better budget efficiency per node. It is especially well suited for mid-scale virtualization, such as hosting boot and workload storage for about 40 to 60 general-purpose virtual machines.

FAQ

Q: Is MZ-QLB1T90 suitable for a write-heavy database server?

A: Yes, the MZ-QLB1T90 is suitable for write-intensive database workloads. With 1.3 DWPD, 2733 TBW, low 85 µs latency, and enterprise Samsung V-NAND, it supports demanding transactional environments reliably.

Q: How many full drive writes per day can it actually endure over its warranty period?

A: This model is rated at 1.3 DWPD, meaning it can handle about 1.3 full drive writes per day throughout its warranty period, consistent with its 2733 TBW endurance specification.

Q: Does it include power loss protection (PLP) and why is that critical?

A: Yes, it includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during sudden outages, reducing corruption risk and improving storage reliability.

Q: What RAID level is recommended for this SSD?

A: Recommended RAID level depends on the workload. RAID 10 is generally preferred for databases, delivering strong performance, redundancy, and faster rebuilds, while RAID 5 or 6 suits capacity-focused environments.

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