345-BLJS Dell 7.68TB NVMe PCIe Read Intensive U.2 2.5Inch SSD

Dell 7.68TB NVMe Enterprise SSD for PowerEdge Servers

Comprehensive Product Overview

• Brand: Dell Certified Storage
• Part Number: 345-BLJS
• Product Category: Internal Solid State Drive
• Form Factor: U.2 15mm, 2.5-Inch

Technical Highlights

• Drive Type: Enterprise-Grade SSD
• Storage Capacity: 7.68TB
• Interface: PCIe Gen 4.0 x4 with NVMe protocol
• Flash Technology: TLC NAND
• Workload Endurance: 1 DWPD, optimized for read-intensive operations

Core Specifications

• Model: Dell 345-BLJS
• 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 Class: Read-Intensive
• MTBF: >2.5 million hours
• Power Consumption: <12W active, <5W idle
• Hot-Plug Support: Yes

Performance & Efficiency

• High-speed PCIe Gen4 connectivity ensures ultra-low latency
• Designed for quick access to large datasets and cloud workloads
• Efficient read-intensive optimization minimizes power usage
• Enterprise reliability with consistent throughput for mission-critical applications

Expansion and Connectivity

• Available Interfaces: Dual PCIe Gen 4.0 x4 NVMe connections
• Supported Bay Type: Internal 2.5-Inch slot
• Hot-plug ready: Designed for minimal downtime in enterprise environments

Server Compatibility

The Dell 7.68TB NVMe SSD integrates seamlessly into a wide variety of Dell PowerEdge servers, ensuring smooth scalability and performance consistency:

• Rack Servers: PowerEdge R440, R640, R6415, R6515, R6525, R660xs, R6615, R6625, R670, R740xd, R7415, R7425, R7515, R7525, R760, R760xa, R7615, R7625, R770, R840, R940, R940xa, R960
• Modular & Cloud Platforms: PowerEdge C6420, C6525, C6620
• Tower Servers: PowerEdge T560
• High-Performance Compute Systems: PowerEdge XE9640, XE9680, XR7620

Key Advantages

• Massive 7.68TB storage designed for enterprise-level applications
• Next-gen PCIe Gen4 NVMe speed for advanced workloads
• Read-intensive optimization with 1 DWPD endurance profile
• Certified Dell compatibility ensures smooth integration with multiple PowerEdge generations
• Reliable choice for virtualization, AI, big data analytics, and data center operations

Dell 345-BLJS 7.68TB PCI-E Gen4 NVMe U.2 SSD: High-Capacity Read-Intensive Enterprise Storage

The Dell 345-BLJS 7.68TB PCIe Gen4 NVMe U.2 2.5-Inch Read Intensive SSD is engineered for enterprise environments requiring ultra-fast data access, high reliability, and scalable performance. Leveraging the PCIe Gen4 interface and NVMe protocol, this SSD delivers exceptional throughput and low latency, making it ideal for read-intensive workloads such as virtual desktop infrastructure (VDI), media streaming, web hosting, and database querying. With its U.2 form factor and hot-plug capability, the 345-BLJS integrates seamlessly into Dell PowerEdge servers and storage arrays, offering a robust solution for modern data centers.

Technical Specifications and Performance Profile

Designed for enterprise-grade reliability and speed, the Dell 345-BLJS SSD combines cutting-edge NAND flash technology with advanced controller architecture. Its PCIe Gen4 x4 interface enables up to 7,000MB/s sequential read speeds, while the NVMe protocol ensures efficient command processing and reduced CPU overhead.

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 SSDs: Redefining Enterprise Storage Architecture

NVMe (Non-Volatile Memory Express) SSDs represent a significant leap in storage technology, offering direct communication between the SSD and CPU via PCIe lanes. Unlike legacy SATA and SAS interfaces, NVMe eliminates bottlenecks associated with traditional storage protocols, enabling parallel command execution and reduced latency. The Dell 345-BLJS SSD exemplifies this advancement, delivering superior performance for read-intensive applications.

Advantages of NVMe over SATA and SAS

• Higher bandwidth via PCIe Gen4 lanes
• Lower latency due to streamlined command sets
• Improved scalability for multi-tenant environments
• Reduced CPU overhead with efficient queue management
• Enhanced thermal and power efficiency

Enterprise 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-BLJS 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-BLJS 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-BLJS 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-BLJS 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 Design Features

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

Thermal and Power Efficiency in PCIe Gen4 SSDs

Despite its high performance, the Dell 345-BLJS SSD maintains efficient thermal and power profiles. Active power consumption remains below 12W during peak operations, while idle power draw is typically under 5W. This efficiency contributes to lower data center energy costs and improved airflow management.