345-BLJZ Dell 7.68TB Read Intensive Gen4 NVMe SSD.

DELL 7.68TB NVMe U.2 PCIe Gen4 Enterprise SSD

The DELL 345-BLJZ 7.68TB Solid State Drive is engineered for enterprise-grade workloads, delivering outstanding efficiency and stability for data-intensive applications on PowerEdge servers. Built with PCIe Gen 4.0 NVMe interface and a compact 2.5-inch U.2 form factor, it provides businesses with exceptional read performance, data protection, and seamless scalability.

General Information

• Manufacturer: DELL
• Product Type: Enterprise Solid State Drive
• Part Number: 345-BLJZ
• Design: Internal Hot-Plug SSD

Core Specifications

• Model: Dell 345-BLJZ
• Capacity: 7.68TB
• Interface: PCIe Gen4 x4
• Protocol: NVMe 1.4
• Form Factor: U.2 2.5-Inch Hot Plug
• Endurance: 1DWPD (Drive Writes Per Day)
• Performance Tier: Read-Intensive
• MTBF: >2.5 million hours
• Power Consumption: <14W active, <5W idle
• Hot-Plug Support: Yes

Key Features and Benefits

Storage & Reliability

• Massive 7.68TB capacity for high-volume data storage
• Based on TLC NAND technology for efficient performance
• Read-Intensive endurance profile ideal for workloads with heavy read ratios
• 1 DWPD (Drive Writes Per Day) providing balanced endurance

Interface & Performance

• PCI Express 4.0 x4 NVMe delivering ultra-fast data throughput
• Low latency for enterprise database and virtualization needs
• Form factor: U.2 15mm 2.5-inch, optimized for compact bays

Expansion and Connectivity

• Dual PCIe 4.0 x4 NVMe interface for reliable connectivity
• Fits into a 2.5-inch internal hot-plug bay
• Optimized for easy integration into DELL PowerEdge servers

Server Compatibility

Supported DELL PowerEdge Platforms

• PowerEdge C6420
• PowerEdge C6525
• PowerEdge C6620
• PowerEdge R440
• PowerEdge R640
• PowerEdge R6415
• PowerEdge R6515
• PowerEdge R6525
• PowerEdge R660xs
• PowerEdge R6615
• PowerEdge R6625
• PowerEdge R670
• PowerEdge R740xd
• PowerEdge R7415
• PowerEdge R7425
• PowerEdge R7515
• PowerEdge R7525
• PowerEdge R760
• PowerEdge R760xa
• PowerEdge R7615
• PowerEdge R7625
• PowerEdge R770
• PowerEdge R840
• PowerEdge R940
• PowerEdge R940xa
• PowerEdge R960
• PowerEdge T560
• PowerEdge Xe9640
• PowerEdge Xe9680
• PowerEdge XR7620

Why Choose This SSD?

• Optimized for modern enterprise workloads such as AI, machine learning, and virtualization
• Certified and tested by DELL for maximum reliability
• Excellent read performance for data-driven applications
• Ensures long-term data durability with enterprise-class engineering

Dell 345-BLJZ 7.68TB Gen4 NVMe SSD: High-Capacity Read-Optimized Enterprise Storage

The Dell 345-BLJZ 7.68TB Read Intensive Gen4 NVMe U.2 PCIe 2.5-Inch SSD is a cutting-edge enterprise-grade solid-state drive engineered for high-performance, read-centric workloads. Leveraging PCIe Gen4 and NVMe 1.4 protocol, this SSD delivers ultra-fast data access, low latency, and exceptional scalability. Its U.2 form factor ensures compatibility with Dell PowerEdge servers, while hot-plug support enables seamless maintenance and upgrades. Designed for environments such as virtual desktop infrastructure (VDI), media streaming, web hosting, and analytics platforms, the 345-BLJZ SSD offers a compelling blend of speed, reliability, and capacity.

Technical Specifications and Performance Overview

The Dell 345-BLJZ SSD integrates advanced NAND flash technology with a high-performance controller optimized for PCIe Gen4. Its 2.5-inch U.2 form factor allows for dense storage configurations in rack-mounted systems, while its read-intensive endurance profile ensures long-term reliability in data-heavy environments.

Performance Metrics

• Sequential Read: Up to 7,000MB/s
• Sequential Write: Up to 3,500MB/s
• Random Read IOPS: Up to 1,000,000
• Random Write IOPS: Up to 180,000
• Latency: <20µs read, <30µs write

NVMe SSD Subcategory: Redefining Enterprise Storage

NVMe (Non-Volatile Memory Express) SSDs represent a transformative leap in storage architecture. Unlike legacy SATA and SAS interfaces, NVMe communicates directly with the CPU via PCIe lanes, eliminating protocol bottlenecks and enabling parallel command execution. The Dell 345-BLJZ SSD exemplifies this innovation, delivering unmatched performance for read-intensive applications.

Advantages of NVMe over SATA and SAS

• Higher bandwidth via PCIe Gen4 interface
• Lower latency with streamlined command sets
• Improved scalability for multi-tenant environments
• Reduced CPU overhead and faster I/O processing
• Enhanced thermal and power efficiency

Use Cases for NVMe Read-Intensive SSDs

• Virtual desktop infrastructure (VDI)
• High-speed media streaming platforms
• Web hosting and content delivery networks (CDNs)
• Real-time analytics and reporting
• Database acceleration for read-heavy queries

U.2 Form Factor: Optimized for Server Integration

The U.2 2.5-inch form factor offers a balance between performance, density, and serviceability. Unlike M.2 drives, U.2 SSDs support hot-plug functionality and are designed for rack-mounted server environments. The Dell 345-BLJZ SSD utilizes this form factor to deliver enterprise-grade performance while maintaining compatibility with existing infrastructure.

Benefits of U.2 SSDs in Data Centers

• Hot-plug support for zero-downtime maintenance
• Standardized 2.5-inch dimensions for easy deployment
• Improved thermal dissipation via metal enclosures
• Support for high-capacity NAND configurations
• Compatibility with Dell PowerEdge drive bays

1DWPD Endurance: Tailored for Read-Intensive Workloads

The Dell 345-BLJZ SSD features a 1DWPD endurance rating, indicating it can sustain one full drive write per day over its warranty period. This endurance level is optimized for read-intensive environments where write operations are minimal, allowing for higher capacity at lower cost per GB.

Understanding DWPD and TBW Metrics

• DWPD (Drive Writes Per Day): Daily write capacity over warranty
• TBW (Total Bytes Written): Cumulative write endurance
• 345-BLJZ TBW Estimate: ~14,000TB
• Warranty Period: Typically 5 years

Endurance Optimization Technologies

• Advanced wear leveling algorithms
• Over-provisioning for spare block allocation
• ECC (Error Correction Code) for data integrity
• Thermal throttling to prevent NAND degradation

Compatibility with Dell PowerEdge Platforms

The Dell 345-BLJZ SSD is validated for use across a wide range of Dell PowerEdge servers, including R650, R750, and MX750c models. Its firmware is optimized for Dell RAID controllers and storage backplanes, ensuring seamless integration and management via Dell OpenManage and iDRAC tools.

Certified Compatibility Matrix

• Dell PowerEdge R650
• Dell PowerEdge R750
• Dell PowerEdge MX750c
• Dell PowerEdge T550
• Dell PowerEdge C6525

Benefits of OEM-Certified NVMe Drives

• Firmware compatibility with Dell storage controllers
• Support for Dell diagnostics and lifecycle management
• Warranty alignment with Dell service contracts
• Reduced risk of firmware conflicts or performance bottlenecks

Thermal and Power Efficiency in PCIe Gen4 SSDs

Despite its high performance, the Dell 345-BLJZ SSD maintains efficient thermal and power profiles. Active power consumption remains below 14W during peak operations, while idle power draw is typically under 5W. This efficiency contributes to lower data center energy costs and improved airflow management.

Thermal Design Features

• Aluminum casing for passive heat dissipation
• Temperature sensors for dynamic throttling
• Firmware-controlled thermal limits
• Compatibility with Dell airflow-optimized drive bays