Samsung MZWL63T8HFLT-00AW7 3.84 TB PM9D3a PCIe Gen5 x4, NVMe 2.0 2.5 inch Enterprise / Data Center Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM9D3a
Capacity	3.84 TB
Usage Class	Enterprise / Data Center Read Intensive

Interface

Host Interface	PCIe Gen5 x4, NVMe 2.0
Total Interface Bandwidth	128 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V8 (236-layer) TLC
Drive Writes Per Day	1
Total Bytes Written	7008 TBW

Performance

Sequential Read	12000 MB/s
Sequential Write	6200 MB/s
Random Read IOPS	2000000
Random Write IOPS	250000
Average Latency	65 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	MZQL23T8HCLS-00A07

Engineer's Note

Compared with MZQL23T8HCLS-00A07, the PM9D3a MZWL63T8HFLT-00AW7 advances to PCIe Gen5 x4 / NVMe 2.0 and Samsung 236-layer V8 TLC, delivering up to 12,000 MB/s read, 6,200 MB/s write, and 2,000,000 random-read IOPS for a clear generational uplift in bandwidth and response capability. With 3.84 TB capacity, 1 DWPD, and 7,008 TBW, it is particularly well suited to latency-sensitive virtualization, scale-out database, and mixed cloud workloads that need Gen5-class throughput with enterprise-grade endurance.

Endurance & Reliability

With an endurance rating of 7,008 TBW and 1 DWPD, this SSD is designed to sustain very heavy write volumes, equivalent to rewriting the full drive capacity once per day across its rated endurance life. In typical enterprise boot, system, logging, or mixed-read application workloads, actual daily writes are usually far lower, so procurement teams can expect ample endurance headroom and long, worry-free service. For enterprise reliability, built-in power loss protection (PLP) helps preserve in-flight data and mapping information during an unexpected power interruption, reducing the risk of corruption or incomplete writes. Its UBER of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity and dependable operation in business-critical environments.

Technical Specs & Insights

1. The PCIe Gen5 x4, NVMe 2.0 platform unlocks next-generation host bandwidth, helping AI, analytics, and virtualization clusters move far more data per server with lower software overhead.
2. Its class-leading sequential read performance accelerates checkpoint loading, large database scans, and backup recovery, reducing wait time for data-intensive enterprise workflows.
3. The extremely high random read capability is ideal for OLTP databases, cloud platforms, and metadata-heavy applications that depend on fast response under massive parallel access.
4. A 1 DWPD endurance profile makes it a strong fit for read-centric enterprise deployments where consistent performance, predictable lifespan, and lower TCO matter more than write-heavy optimization.
5. Samsung V8 236-layer TLC NAND paired with very low typical latency delivers dense, power-efficient storage with fast, steady response times for latency-sensitive production environments.

Capacity Sweet

Lower capacity: 1.92 TB Higher capacity: 7.68 TB In this series, the 3.84 TB model sits at the practical sweet spot. Compared with the 1.92 TB version, it offers much better headroom for data growth, denser server builds, and longer refresh flexibility without changing the expected enterprise-class read/write and random IOPS profile too much. Compared with the 7.68 TB option, it usually delivers a more efficient balance of acquisition cost, usable capacity, and performance consistency per drive. It is well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for roughly 60 to 90 business workloads on a 2U node.

FAQ