Ultrastar Ssd

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The Western Digital Ultrastar SSD series continues to be a cornerstone for enterprise and AI-driven data centers in 2026. The market is currently characterized by a massive surge in demand for high-capacity storage, with a clear focus on the Ultrastar DC SN840 for high-performance active workloads and the SN655/SN650 series for cost-effective cloud scalability. Pitchgrade Sandisk

Product Overview & Performance

Ultrastar SSDs are distinguished by their dual-port architecture for high availability and enterprise-grade reliability (2.5M hours MTBF). Sandisk

* Ultrastar DC SN840 (NVMe): Optimized for AI/ML and real-time analytics, offering up to 3,470 MB/s read speeds and capacities reaching 15.36TB. Sandisk Pitchgrade

* Ultrastar DC SN655/SN650: Targets hyperscale cloud environments with PCIe Gen 4.0, balancing performance and cost for larger storage pools. Westerndigital

* Ultrastar DC SS540 (SAS): A specialized 6th-gen SAS drive providing high-capacity (up to 15.36TB) for traditional mission-critical server environments. Getuniqcli Serverorbit

2026 Market Insights

* AI Infrastructure Impact: AI training runs are driving demand for 10–50 petabytes per run, causing hyperscalers to hoard inventory. Enterprise buyers are facing lead times exceeding 52 weeks for high-capacity drives. Pitchgrade Alibaba

* Pricing Trends: While NVMe SSDs dominate in performance, HDDs remain the volume choice due to a 6-8x cost-per-TB advantage. However, SSDs are becoming essential for AI inference and 8K video processing where speed is non-negotiable. Alibaba Pitchgrade

* Regional Demand: Supply remains tight, particularly in the US and China, driven by intense AI infrastructure build-outs and hyperscaler procurement strategies. Pitchgrade Alibaba

I have identified current B2b availability for the SN840, SN655, and SS540 series, including detailed pricing from verified suppliers.

Here are the current Ultrastar SSD market insights. To refine your search, you could:

Sources & References

27 sources cited · Verified industry data & reports

Ultrastar DC SN840

Sandisk

The Ultrastar DC SN840 is Western Digital's 3rd generation of performance NVMe SSD for data center with PCIe Gen 3.1 (dual-port), NVMe 1.3, providing up to ...

WD at Computex 2026: AI Doesn't Just Run on Compute

Stock Titan

WD's Ultrastar® HDD high-capacity storage portfolio spanning UltraSMR, ePMR and HAMR. High Bandwidth Drive Technology and Dual Pivot Drive ...

Ultrastar DC HC680 Data Center HDD

Western Digital

The Ultrastar DC HC680 data center hard drive uses new and improved OptiNAND technology to store up to 28TB on a 10-disk SMR drive.

Western Digital Launches 20 TB NAS HDD with 64 GB ...

TechPowerUp

The internal transfer rate is said to reach up to 268 MB/s which makes it the second fastest drive in the series, just behind the 18 TB version.

Western Digital 0B40377 Ultrastar DC Ss530 15.36TB SAS ...

ServerOrbit

The Western Digital Ultra star DC Ss530 0B40377 is a high-capacity enterprise-grade solid state drive designed for mission-critical workloads.

WD Ultrastar DC SS540… | Western Digital

Uniqcli

Ultrastar® DC SS540, Western Digital's 6th generation of SAS SSD drive, delivers exceptional performance to data centers with 96-Layer 3D NAND technology and a ...

Ultrastar Ssd

Overview

Product Overview & Performance

2026 Market Insights

Sas Ssd Enterprise Ultrastar Ss540

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Sources & References