495XR Dell 3.84TB PCI-E NVMe Gen5 E3.S Read Intensive SSD

Dell 495XR 3.84TB E3.S Enterprise SSD

The Dell 495XR 3.84TB PCIe Gen 5.0 NVMe E3.S Solid State Drive represents a monumental leap in enterprise storage technology, engineered exclusively for the demanding environments of Dell PowerEdge 16th and 17th Generation servers. As a read-intensive TLC drive, it masterfully balances exceptional performance, high endurance, and storage density, making it the cornerstone for data-intensive applications in the modern data center.

Architected for Dell PowerEdge 16G & 17G Servers

This SSD is not a generic component; it is a fully validated and integrated storage solution designed from the silicon up for seamless compatibility and optimal performance within Dell's flagship server platforms.

Deep Integration with PowerEdge Architecture

The 495XR leverages the advanced PCIe Gen 5.0 lanes and NVMe management capabilities of the PowerEdge platform. It is meticulously tested for firmware interoperability, thermal management within Dell chassis, and flawless operation with Dell's system management tools like iDRAC9 and OpenManage Enterprise.

Included Tray for Effortless Deployment

Each drive ships with its requisite tray, ensuring a secure, tool-less installation into the dedicated E3.S hot-swap bays of compatible PowerEdge servers. This eliminates compatibility guesswork and streamlines serviceability.

Gen5 Server Potential

By populating PowerEdge servers with 495XR drives, you fully exploit the doubled bandwidth of PCIe Gen 5.0 interfaces, eliminating storage bottlenecks and ensuring CPUs and memory are fed data at unprecedented speeds.

PCIe Gen 5.0 x4 NVMe: The Performance Foundation

The adoption of the PCI Express 5.0 interface is a game-changer, delivering theoretical bandwidth of up to 32 GT/s per lane, effectively doubling the throughput of the previous PCIe Gen 4.0 standard.

Revolutionary Data Transfer Speeds

This interface, combined with the NVMe 2.0 protocol, enables the Dell 495XR to achieve staggering sequential read and write speeds measured in gigabytes per second. This dramatically reduces application latency, accelerates data analytics, and speeds up virtual machine deployment and snapshot operations.

Low Latency & High IOPS

Beyond raw throughput, the NVMe protocol's efficient queueing and parallelism deliver massively high Input/Output Operations Per Second (IOPS). This is critical for transactional databases, real-time processing, and virtualization where simultaneous access to data is paramount.

E3.S Form Factor: The New Standard for Density

The E3.S (EDSFF E3 Short) 2.5-inch form factor is a purpose-built design for high-performance, scale-out enterprise and cloud data centers, offering significant advantages over traditional U.2 drives.

Enhanced Thermal Design

The E3.S form factor features a larger surface area and is designed to promote superior airflow across critical components. This allows the 495XR to sustain its peak Gen 5.0 performance for longer durations without thermal throttling, even in densely packed server configurations.

Optimized for Rack Scale

E3.S drives enable extremely high storage density in 1U and 2U servers. More drives can be fitted per server, maximizing capacity and performance per rack unit, which is essential for software-defined storage (SDS) and hyper-converged infrastructure (HCI) deployments.

3.84TB Read-Intensive TLC NAND: Intelligent Endurance

At the heart of the 495XR lies 3.84 Terabytes of 3-bit per cell (TLC) NAND flash, specifically optimized for read-intensive workloads. This represents the ideal balance of cost, capacity, and endurance for the majority of enterprise applications.

Defining Read-Intensive Workloads

Read-intensive SSDs are engineered for scenarios where data is fetched and accessed far more frequently than it is written or modified. They provide exceptional endurance for these patterns, making them perfectly suited for specific enterprise functions.

High Endurance for Demanding Environments

The drive is rated with a specific Terabytes Written (TBW) endurance value and Drive Writes Per Day (DWPD) rating, guaranteeing reliable performance over its service life. Advanced wear-leveling and over-provisioning algorithms distribute write cycles evenly across all NAND cells, prolonging the drive's lifespan.

Optimal Use Case Scenarios

This drive excels in hosting operating system images, application binaries, and reference databases. It is the preferred choice for server boot drives, housing virtual desktop infrastructure (VDI) base images, and powering content delivery networks (CDNs) where data is predominantly served to users.

Enterprise-Grade Features & Reliability

The Dell 495XR is imbued with a suite of enterprise features that ensure data integrity, availability, and seamless integration into business-critical infrastructure.

Power Loss Protection (PLP)

Integrated capacitors provide backup power in the event of an unexpected power failure. This allows the drive's controller to complete in-flight writes and commit data from volatile cache to non-volatile NAND flash, preventing data corruption.

End-to-End Data Path Protection

Data is protected from the moment it enters the drive's interface until it is stored in NAND cells. This includes parity checks, cyclic redundancy checks (CRC), and error correction code (ECC) mechanisms to detect and correct errors, ensuring data remains pristine.

Primary Use Cases & Target Applications

The performance profile of the Dell 495XR makes it an optimal choice for a range of server-based applications where read performance and capacity are critical.

Cloud Infrastructure

Ideal for storing hypervisor images and as a cache tier for virtualization hosts. The high random read IOPS accelerate virtual machine boot storms and improve the performance of read-heavy VMs.

Virtual Desktop Infrastructure (VDI)

Excellent for VDI golden image storage and linked-clone environments, where hundreds of users may be reading from a common base image simultaneously. The low latency reduces user login times and improves overall desktop responsiveness.

Relational Database (RDBMS) Acceleration

Well-suited for database tables, indexes, and logs where fast read access for queries is paramount. The consistent latency ensures predictable transaction times.

Big Data & Data Warehousing

Accelerates access to large datasets in Hadoop, data lakes, and data warehouses, where sequential read performance speeds up data processing and analytics jobs.