345-BJNQ Dell 30.72TB PCIe Gen4 4.0 X4 NVME U.2 2.5Inch SFF Enterprise Class Qlc 3d Nand SSD

The Dell 345-BJNQ 30.72TB PCIe Gen4 NVMe U.2 SSD 

The Dell 345-BJNQ 30.72TB PCIe Gen4 x4 NVMe U.2 2.5-Inch Solid State Drive (SSD) is a high-performance enterprise storage device designed to meet the demands of modern data centers, virtualization environments, and mission-critical business applications. Engineered with Quad-Level Cell (QLC) 3D NAND technology and the latest PCIe 4.0 interface, this SSD delivers extraordinary capacity, consistent throughput, and optimized power efficiency for both read-intensive and mixed-workload scenarios.

By integrating advanced NVMe architecture and Dell’s proven enterprise-grade reliability, the 345-BJNQ ensures fast data access and long-term durability for large-scale cloud infrastructure and enterprise storage arrays.

Form Factor Advantages

With its 2.5-inch Small Form Factor (SFF), the 345-BJNQ delivers high capacity while conserving valuable server space. This allows data centers to achieve more terabytes per rack unit without compromising airflow or power distribution. The SFF design also supports dense storage configurations that can easily scale as enterprise data demands grow.

U.2 Interface Efficiency

The U.2 (formerly SFF-8639) interface brings together the advantages of NVMe over PCI Express while maintaining a form factor compatible with standard 2.5-inch drive bays. This makes the Dell 345-BJNQ ideal for organizations transitioning from SATA or SAS-based SSDs to faster, PCIe-based NVMe solutions.

Power and Cooling Optimization

Dell engineers have optimized the 345-BJNQ SSD for thermal efficiency and low power consumption. With improved energy management and dynamic thermal throttling, the drive maintains performance stability under sustained heavy workloads without overheating or consuming excessive power.

Read and Write Speeds

Leveraging Dell’s advanced NVMe controller technology, this SSD offers blazing-fast sequential read speeds of up to 7,000 MB/s and write speeds approaching 4,000 MB/s. Such high throughput ensures that even data-intensive tasks—like large database queries, AI training, or virtualization—operate with minimal lag.

Random IOPS Efficiency

The drive delivers outstanding random read/write IOPS performance, optimizing input/output operations per second for mixed workload environments. Whether running multiple virtual machines or real-time analytics, the Dell 345-BJNQ maintains stable response times even under heavy queue depths.

QLC 3D NAND Flash Technology Explained

The Quad-Level Cell (QLC) 3D NAND architecture allows Dell to store four bits of data per cell, achieving ultra-high density without sacrificing endurance. By leveraging layered 3D stacking, the Dell 345-BJNQ balances cost-effectiveness with enterprise-grade reliability, making it suitable for read-intensive and moderate-write applications.

3D NAND Structural Benefits

The 3D stacking method enhances the physical durability and reliability of each NAND cell. This design provides better endurance cycles, consistent write amplification control, and improved data retention—crucial for always-on data center environments.

Endurance Optimization Techniques

Dell’s firmware employs intelligent data placement, wear-leveling, and over-provisioning strategies to extend the SSD’s lifespan, even when operating in high-transaction workloads. Combined with ECC (Error Correction Code) and LDPC (Low-Density Parity Check) technology, the 345-BJNQ ensures data integrity at every stage.

Enterprise-Class Reliability and Durability

As an enterprise-grade SSD, the Dell 345-BJNQ is engineered to meet stringent reliability requirements. It includes technologies that safeguard data during unexpected power loss, temperature fluctuations, or unplanned shutdowns.

Compatibility with Dell PowerEdge Servers

The 345-BJNQ is specifically validated for Dell PowerEdge 14G, 15G, and 16G servers. This seamless compatibility ensures maximum performance with Dell’s hardware ecosystem, including RAID configurations, BIOS integration, and management tools.

Enterprise Database 

Databases like Oracle, SQL, and PostgreSQL benefit from the SSD’s ability to handle simultaneous read/write operations. The Dell 345-BJNQ supports transactional consistency, ensuring stable response even during peak operations.

Video Streaming and Content Delivery

For media enterprises, the drive’s massive capacity and fast access speeds enable smooth content caching, streaming, and transcoding. It minimizes latency, ensuring an optimal user experience across platforms.

Data Protection

The Dell 345-BJNQ integrates advanced data security protocols to safeguard sensitive information, making it compliant with enterprise cybersecurity standards.

Hardware-Based Encryption

The drive supports TCG Opal and AES-256-bit hardware encryption, ensuring that data remains protected both at rest and in motion. This is essential for industries that handle confidential or regulated data such as finance, healthcare, and government.

Power Efficiency

Despite its massive storage capacity, the Dell 345-BJNQ operates with impressive energy efficiency. It balances high performance with low active and idle power consumption, reducing the total cost of ownership for data centers.

Comparing Dell 345-BJNQ to Other NVMe SSD

When compared with other enterprise NVMe drives in its class, the Dell 345-BJNQ stands out due to its remarkable combination of capacity, PCIe Gen4 performance, and QLC cost-efficiency.

Performance vs. TLC-Based Drives

While TLC (Triple-Level Cell) drives typically offer higher endurance, the QLC-based 345-BJNQ compensates with superior storage density and optimized read-focused performance—ideal for enterprise workloads that prioritize capacity over write endurance.

Cost Efficiency per Terabyte

By leveraging QLC flash, Dell provides a cost-effective path for data centers seeking to scale capacity without sacrificing speed. This results in a lower cost per TB ratio, making it an excellent investment for long-term storage expansion.

Integration within Dell Ecosystem

Unlike third-party NVMe SSDs, the Dell 345-BJNQ offers native firmware support and compatibility with Dell PowerEdge BIOS, RAID controllers, and iDRAC monitoring tools. This ensures optimized reliability and system harmony.

Scalability and Future-Proof Infrastructure

The PCIe Gen4 foundation of this SSD ensures that it is future-ready for evolving workloads and data throughput demands. As server infrastructures migrate to PCIe Gen5 and higher, backward compatibility and interface scalability ensure that the Dell 345-BJNQ remains relevant for years to come.