Samsung MZ-QLB9600 960 GB PM983 PCIe 3.0 x4 U.2 (2.5") Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM983
Capacity	960 GB
Usage Class	Read Intensive

Interface

Host Interface	PCIe 3.0 x4
Total Interface Bandwidth	8 Gb/s

Physical Dimension

Form Factor	U.2 (2.5")

Flash & Endurance

NAND Flash	Samsung V-NAND 3-bit TLC
Drive Writes Per Day	1.3
Total Bytes Written	1366 TBW

Performance

Sequential Read	3000 MB/s
Sequential Write	1100 MB/s
Random Read IOPS	400000
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	MZ-7LH480NE

Engineer's Note

Compared with the previous-generation MZ-7LH480NE, the PM983 MZ-QLB9600 doubles capacity to 960 GB and upgrades to a PCIe 3.0 x4 NVMe interface, delivering up to 3000/1100 MB/s and 400,000/40,000 IOPS for a clear leap in throughput and low-latency responsiveness. Its 1.3 DWPD and 1366 TBW, backed by Samsung V-NAND 3-bit TLC, make this model a strong fit for virtualization, scale-out servers, and read-heavy database tiers that need better performance density than legacy SATA enterprise SSDs.

Endurance & Reliability

With an endurance rating of 1366 TBW and 1.3 DWPD, the MZ-QLB9600 is designed to handle sustained daily write activity with comfortable margin in typical business environments. In practical terms, for common OS, application, boot, and read-intensive infrastructure workloads, this level of endurance supports long-term stable use and can serve reliably as a system drive for many years. The MZ-QLB9600 also includes enterprise-class reliability safeguards such as power loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption. Its UBER rating of 1.0E-17 indicates an extremely low unrecoverable bit error rate, giving procurement teams added confidence in data integrity for business-critical storage deployments.

Technical Specs & Insights

1. The PCIe 3.0 x4 interface provides a well-balanced host link for enterprise servers, ensuring the drive can sustain fast data movement without creating a storage bottleneck in mainstream virtualized and database workloads.
2. Its 3000 MB/s sequential read performance accelerates large-file access, helping analytics platforms, backup restores, and content delivery systems pull data far more quickly.
3. With 400,000 K random read IOPS, the drive is built to handle highly concurrent small-block requests, which translates into snappier response for OLTP databases, VMs, and heavily indexed applications.
4. Rated at 1.3 DWPD and built on Samsung V-NAND 3-bit TLC, it offers a practical mix of write endurance and flash efficiency for read-centric enterprise deployments that still see steady daily update traffic.
5. The 85 µs typical latency supports consistently fast access times, reducing tail-delay risk and improving application responsiveness in latency-sensitive server environments.

Capacity Sweet

Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB The 960 GB model sits in the sweet spot of this SSD family. Compared with the 480 GB version, it gives much better headroom for OS images, application growth, logs, and spare capacity, reducing the risk of early capacity pressure. Compared with the 1.92 TB option, it keeps acquisition cost and $/workload under tighter control while delivering essentially the same enterprise-class sequential throughput and random IOPS behavior. It is best suited for mid-scale deployments, such as hosting boot and application volumes for around 40 to 60 virtual machines in a compact cluster.

FAQ