Intel SSDPF21Q400GBE 400 GB Optane SSD P5800X PCIe 4.0 x4, NVMe 2.5 inch 15mm (U.2) Enterprise/Write-Intensive Solid State Drive

General

Brand	Intel
Model	Optane SSD P5800X
Capacity	400 GB
Usage Class	Enterprise/Write-Intensive

Interface

Host Interface	PCIe 4.0 x4, NVMe
Total Interface Bandwidth	64 Gb/s

Physical Dimension

Form Factor	2.5 inch 15mm (U.2)

Flash & Endurance

NAND Flash	3D XPoint
Drive Writes Per Day	100
Total Bytes Written	73000 TBW

Performance

Sequential Read	7200 MB/s
Sequential Write	4800 MB/s
Random Read IOPS	1500000
Random Write IOPS	1150000
Average Latency	6 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	SSDPF21Q400GB

Engineer's Note

The SSDPF21Q400GBE (Optane SSD P5800X 400GB) stands out by pairing 3D XPoint media with PCIe 4.0 x4 NVMe to deliver up to 7,200/4,800 MB/s and 1.5M/1.15M IOPS, while sustaining an exceptional 100 DWPD and 73,000 TBW that conventional enterprise NAND SSDs in the same capacity class cannot match. Compared with the earlier SSDPF21Q400GB, this newer SSDPF21Q400GBE revision is the stronger choice for current-gen low-latency databases, write-intensive caching, and journaling tiers, offering a more platform-aligned PCIe 4.0 deployment path without sacrificing Optane’s hallmark endurance and QoS consistency.

Endurance & Reliability

With an endurance rating of 73,000 TBW and 100 DWPD, the SSDPF21Q400GBE is built for extremely write-intensive enterprise workloads, allowing the full 400GB capacity to be overwritten up to 100 times per day throughout its rated service life. In typical use as an OS boot drive, logging disk, or application/system disk, this level of endurance provides a very large reliability margin and can support many years of continuous operation with confidence. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is suddenly interrupted, reducing the risk of corruption and unclean shutdown issues. Its UBER rating of 1.0E-17, together with a 2 million hour MTBF, indicates an enterprise-class design with an extremely low probability of unrecoverable bit errors, helping procurement teams trust it for mission-critical storage environments.

Technical Specs & Insights

1. The PCIe 4.0 x4 NVMe architecture, paired with 7200 MB/s sequential read speed, accelerates large-block data movement so analytics clusters, virtualization hosts, and backup appliances spend less time waiting on storage.
2. With 1,500,000 random-read IOPS, the drive can sustain extremely dense transactional and metadata-heavy workloads, making it well suited for high-concurrency databases and large-scale VM environments.
3. A 100 DWPD endurance rating translates into exceptional write resilience, enabling continuous logging, caching, and journaling workloads without frequent replacement cycles or service risk.
4. By using 3D XPoint media, the SSD delivers far more consistent responsiveness than conventional NAND-based drives, which is especially valuable for latency-sensitive enterprise applications.
5. A typical latency of 6 µs helps reduce storage wait states to near-memory-class levels, improving tail-latency behavior in real-time trading, OLTP, and in-memory database extension scenarios.

Endurance & Reliability

Suggested adjacent capacities in the same series: Lower capacity: 200 GB Higher capacity: 800 GB In this product family, the 400 GB model is the practical sweet spot. Compared with the 200 GB version, it gives much better headroom for OS images, logs, metadata, and steady growth, reducing the risk of early capacity pressure. Compared with the 800 GB option, it usually delivers a more attractive cost-to-usable-space balance while keeping read/write behavior and random IOPS in the same enterprise performance class. It is well suited for small to mid-sized virtualization clusters, such as hosting boot and application volumes for about 40 to 60 virtual machines.

FAQ