Intel Optane P5800X 400GB E1.S PCIe 4.0 Storage Class Memory

Brand: Intel | Category: Enterprise SSDs

SKU: INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD | Part #: INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD | MPN: INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD

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Intel's Optane P5800X 400GB in E1.S form factor represents a distinct category in enterprise storage: a drive that sits between DRAM and traditional NVMe SSD in both performance profile and cost structure. The E1.S 5 × 15.4mm physical specification—part of the EDSFF (Enterprise Drive Form Factor) standard—mounts directly into dedicated E1.S bays on modern server backplanes, typically found in 2U and 4U systems from HPE, Dell EMC, and Lenovo. Unlike M.2 drives that plug into laptop-style slots, the E1.S standard provides better thermal management, hot-swap capability, and density for data centre deployments. This physical design matters because it determines which server platforms your infrastructure team can deploy the INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD into without adapter cards or compromises.

The throughput profile of this Intel drive reflects its Storage Class Memory architecture built on 3D XPoint technology rather than conventional NAND flash. Sequential reads reach 7.2 GB/s and writes hit 6.2 GB/s—numbers that matter less for typical transactional workloads and more for scenarios where your data pipeline involves large sequential transfers: machine learning model training, data warehouse ingest, or backup staging. Where the drive truly differentiates itself is at queue depth 16 (QD16), where random read and write IOPS both plateau at 1.5 million operations per second. More relevant to production storage architects and database administrators is the sub-microsecond latency: 6 microseconds typical at queue depth 1 (QD1) for both reads and writes. This low-latency characteristic—achievable because 3D XPoint is byte-addressable memory, not block storage—means applications see predictable response times even under light load, which matters more in latency-sensitive workloads like in-memory databases or real-time analytics clusters than raw IOPS counts ever will.

Endurance on the INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD spec sheet shows 100+ drive writes per day (DWPD), a figure that sounds abstract until you map it to real usage. On a 400GB drive, that translates to 40TB of write traffic daily before the warranty is exhausted. For comparison, a traditional NVMe SSD in the same capacity might offer 1–3 DWPD. This endurance rating makes Intel's Optane P5800X suitable for intensive caching layers, transaction logs, or hot-tier storage in tiered systems where conventional SSDs would wear out within years. The power envelope is also modest: 14W active, 6W idle. In a 40-drive E1.S shelf, that's a manageable thermal and electrical budget compared to spinning disk or older SSD generations. Intel engineered this drive with end-to-end data path protection and optional AES 256-bit encryption, which means your security and compliance teams get hardware-level guarantees without software overhead.

The PCIe 4.0 x4 NVMe 1.4 interface on the INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD connects to modern server chipsets—Intel Xeon Scalable (3rd Gen and later), AMD EPYC (7002 series and later)—where PCIe Gen 4 lanes are plentiful. NVMe Management Interface (NVMe-MI) support means your infrastructure automation tools can query drive health, temperature, and capacity telemetry over the same connection used for data, eliminating the need for separate IPMI or OOB management channels. This matters for cloud operators and enterprise storage teams building monitoring stacks that need to correlate drive metrics with application performance. Compliance with EDSFF E1.S and NVMe 1.4 specifications ensures you're not locked into a proprietary ecosystem; the drive will function across any OEM server platform that implements the standard correctly.

Positioning this drive requires honest assessment of its economics and use case fit. The 400GB capacity makes it suitable for caching, logging, or burst buffering rather than primary data tier storage. The cost per gigabyte is significantly higher than QLC NAND SSDs, which means finance teams scrutinize every allocation. Storage architects and AI infrastructure leads at enterprises running large language models, high-frequency trading platforms, or analytics warehouses are the primary buyers. They purchase Intel Optane when the latency and endurance characteristics justify the investment—not as a blanket replacement for SSD capacity, but as a surgical tool for specific, performance-critical layers of the stack.

Performance Specifications

• Sequential throughput: 7.2 GB/s read, 6.2 GB/s write across PCIe 4.0 x4 NVMe 1.4
• Random IOPS: 1.5 million read and write operations per second at queue depth 16 (4K block size)
• Latency: 6 microseconds typical for both read and write at queue depth 1, enabling predictable response times
• Endurance: 100+ drive writes per day, translating to 40TB daily write capacity on 400GB media
• Power consumption: 14W active operation, 6W idle state
• Operating temperature range: 0°C to 70°C with integrated thermal management via E1.S form factor
• Data protection: End-to-end data path protection, power-loss guarantee, optional AES 256-bit encryption
• NVMe-MI support for remote health monitoring and telemetry over standard NVMe connection

Omnixon Global stocks the INTEL-OPTANE-P5800X-400GB-E1S-PCIE-4-SSD and maintains relationships with HPE, Dell EMC, and Lenovo regional partners across the GCC, enabling rapid deployment for urgent enterprise projects. We understand the procurement cycles and technical validation requirements for Storage Class Memory deployments in data centres and AI labs. Contact our team for detailed specification sheets, compatibility matrices with your existing infrastructure, and request for quotation on bulk orders or mixed-capacity configurations.