Samsung MZQL21T9HCJR 1.92TB PM9A3 Enterprise NVMe U.2 SSD

Description

The Samsung MZQL21T9HCJR belongs to Samsung’s PM9A3 enterprise SSD family and provides 1.92TB / 1,920GB of high-performance storage in a compact 2.5-inch U.2 form factor.

Samsung’s PM9A3 product lineup identifies MZQL21T9HCJR-00W07 as the 1.92TB model. Current server compatibility documentation also identifies MZQL21T9HCJR-00A07 as a 1.92TB U.2 PCIe Gen4 x4 PM9A3 SSD.

The SSD uses PCI Express Gen4 x4 connectivity and the NVMe 1.4 protocol, providing substantially higher storage bandwidth and lower command overhead than traditional SATA-based enterprise SSDs.

Key Specifications

Specification	Details
Manufacturer	Samsung
Series	PM9A3
Part Number	MZQL21T9HCJR
Full Part Number	MZQL21T9HCJR-00A07 / -00W07
Product Type	Enterprise NVMe SSD
Capacity	1.92TB / 1,920GB
Interface	PCIe Gen4 x4
Protocol	NVMe 1.4
Form Factor	2.5-inch U.2
Physical Interface	SFF-8639
Thickness	7mm
NAND Technology	Samsung 3D V-NAND
NAND Type	TLC
Sequential Read	Up to 6,800 MB/s
Sequential Write	Up to 4,000 MB/s
Random Read	Up to 1,000K IOPS
Random Write	Up to 180K IOPS
Endurance	1 DWPD for 5 years
TBW	Approx. 3,504TB
MTBF	2,000,000 hours
Power-Loss Protection	Yes
End-to-End Data Protection	Yes
Encryption	AES-XTS 256-bit
Security	TCG Opal 2.0
Operating Temperature	0°C to 70°C
Application	Enterprise Server / Data Center

The core interface, capacity, form factor, and performance specifications are supported by Samsung’s PM9A3 documentation and server qualification records.

1.92TB Enterprise Storage Capacity

The MZQL21T9HCJR provides 1.92TB (1,920GB) of enterprise storage capacity.

Samsung identifies the model as the 1.92TB PM9A3 configuration, with actual usable capacity potentially lower after formatting and system-management overhead.

The capacity is suitable for:

• Enterprise databases
• Virtualization datastores
• Application servers
• Cloud infrastructure
• Data analytics
• High-performance computing
• Enterprise boot volumes
• Storage caching
• Data-center workloads

PCIe Gen4 x4 Performance

The PM9A3 uses a PCIe Gen4 x4 host interface.

For the 1.92TB model, published specifications provide:

• Sequential Read: Up to 6,800 MB/s
• Sequential Write: Up to 4,000 MB/s
• Random 4KB Read: Up to 1,000K IOPS
• Random 4KB Write: Up to 180K IOPS

These are maximum manufacturer/test-condition figures. Actual performance can vary depending on the server, PCIe implementation, firmware, workload, queue depth, thermal conditions, operating system, and storage configuration.

NVMe 1.4 Protocol

The MZQL21T9HCJR supports NVMe 1.4 over PCIe Gen4.

NVMe is optimized for modern solid-state storage and allows enterprise systems to take advantage of the high bandwidth and low latency offered by PCI Express.

The combination of PCIe Gen4 x4 + NVMe makes the PM9A3 significantly faster than conventional SATA-based enterprise SSDs in workloads capable of utilizing the additional bandwidth.

2.5-Inch U.2 Form Factor

The drive uses a 2.5-inch, 7mm U.2 form factor with an SFF-8639 NVMe interface.

A server qualification list specifically identifies the MZQL21T9HCJR as:

• Form Factor: U.2
• Size: 2.5-inch, 7mm
• Interface: SFF-8639 NVMe
• PCIe: Gen4 x4
• Capacity: 1.92TB

A physical 2.5-inch drive bay alone does not guarantee compatibility. The server must provide a compatible PCIe/NVMe backplane and appropriate U.2 connectivity.

Samsung 3D V-NAND TLC

The PM9A3 uses Samsung 3D V-NAND TLC flash memory.

The enterprise-oriented NAND architecture is designed to provide a balance of performance, capacity, endurance, and reliability for data-center applications.

Enterprise Endurance

The 1.92TB PM9A3 is specified for 1 DWPD for 5 years.

For the 1.92TB configuration, the corresponding endurance is approximately:

3,504TB TBW

This endurance profile makes the SSD appropriate for demanding enterprise workloads such as:

• Virtualization
• Databases
• Application servers
• Cloud infrastructure
• Enterprise storage
• Data analytics
• Transaction-oriented applications

Power-Loss Protection

The PM9A3 incorporates Power-Loss Protection (PLP) designed for enterprise storage environments.

PLP helps protect in-flight and committed data during unexpected power interruptions and contributes to data integrity in server and data-center deployments.

Data Protection & Security

The MZQL21T9HCJR supports enterprise-oriented storage protection features.

Published PM9A3 specifications include:

• AES-XTS 256-bit hardware encryption
• TCG Opal 2.0
• End-to-end data protection
• Power-loss protection

These capabilities make the drive suitable for enterprise environments where data integrity and storage security are important.

Enterprise Reliability

Samsung’s PM9A3 U.2 specification identifies the drive with:

• MTBF: 2,000,000 hours
• Endurance: 1 DWPD for 5 years
• UBER: 1 sector per 10¹⁷ bits read
• Power-Loss Protection: Yes
• End-to-End Data Protection: Yes

The drive is designed for continuous operation in enterprise server and data-center environments.

Thermal & Environmental Specifications

The PM9A3 U.2 1.92TB model has an operating temperature range of approximately:

0°C to 70°C

The drive is intended to operate within properly cooled server environments, particularly when handling sustained high-I/O workloads.

Adequate server airflow should be maintained to prevent thermal throttling during sustained workloads.

Power Characteristics

Published PM9A3 specifications indicate approximately:

• Read Power: ≤11W
• Write Power: ≤13.5W

Actual consumption varies with workload, host system, temperature, and power-management configuration.

Enterprise Applications

The Samsung MZQL21T9HCJR is suitable for:

Virtualization

High random I/O performance makes the SSD suitable for VM datastores and virtualization infrastructure.

Databases

The combination of high random-read performance and PCIe Gen4 bandwidth supports database workloads requiring rapid storage access.

Application Servers

The drive can provide fast storage for enterprise applications and services.

Cloud Infrastructure

The PM9A3 is designed for data-center workloads requiring high-performance NVMe storage.

Data Analytics

High sequential and random performance can accelerate data-intensive processing.

Enterprise Boot & Cache

The 1.92TB capacity can be used for high-performance operating-system, boot, cache, or application tiers in compatible servers.

Compatibility Considerations

Before installation, verify that the target server or storage platform supports:

• U.2 NVMe SSDs
• 2.5-inch 7mm U.2 drives
• PCIe Gen4 x4
• NVMe protocol
• SFF-8639 NVMe connectivity
• Compatible PCIe/NVMe backplane
• Appropriate cabling
• BIOS/UEFI NVMe support
• Operating-system NVMe support
• Adequate server airflow

The MZQL21T9HCJR is:

NVMe — NOT SATA

and:

U.2 — NOT M.2

A standard SATA 2.5-inch backplane will not provide the required PCIe/NVMe connectivity.

Part-Number Suffix Note

Samsung documentation identifies the 1.92TB PM9A3 model as MZQL21T9HCJR-00W07, while current server qualification and commercial listings also identify MZQL21T9HCJR-00A07.

For your store catalog, if the physical drive label specifically shows MZQL21T9HCJR without the suffix, it is safest to list the base model exactly as:

MZQL21T9HCJR – Samsung PM9A3 1.92TB U.2 NVMe SSD

and use the complete suffix from the actual drive label or inventory record when available.

Key Features & Benefits

• 1.92TB enterprise storage capacity
• Samsung PM9A3 series
• PCIe Gen4 x4
• NVMe 1.4
• 2.5-inch U.2 form factor
• SFF-8639 NVMe interface
• 7mm thickness
• Samsung 3D V-NAND TLC
• Up to 6,800 MB/s sequential read
• Up to 4,000 MB/s sequential write
• Up to 1,000K random-read IOPS
• Up to 180K random-write IOPS
• 1 DWPD for 5 years
• Approx. 3,504TB TBW
• 2,000,000-hour MTBF
• Power-Loss Protection
• End-to-End Data Protection
• AES-XTS 256-bit hardware encryption
• TCG Opal 2.0
• Designed for enterprise servers and data centers
• Suitable for virtualization and database workloads