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Data center SSD storage

Micron 6600 ION NVMe™ SSD

Built with Micron’s innovative G9 QLC NAND, the Micron 6600 ION NVMe SSD delivers high-capacity storage up to 245TB for AI, cloud, enterprise and hyperscale data center workloads.

Industry leading 245TB SSD for high-capacity data center storage1

The 245TB Micron 6600 ION leads the industry in the high-density E3.L form factor or 122TB in the compact E3.S form factor, making it the world’s highest capacity SSD available today. Built on PCIe® Gen5 and Micron QLC NAND performance, it is purpose-built for AI, cloud, and data centers to help scale sustainably.

By reducing storage footprint and energy use, it helps make infrastructure leaner and greener. With the ability to store over 176PB per rack, it minimizes the need for excess drives, infrastructure, and racks—accelerating scale for AI data lakes, big data, and analytics environments.2

Micron 6600 ION SSD product family

Benefits

Industry leading storage density

Store over 4.9PB per 1U with the industry leading 245TB E3.L form factor SSD or over 2.4PB with the E3.S form factor 122TB SSD. The Micron 6600 ION offers huge capacity to help you maximize your rack space and infrastructure efficiency.2

Exceptional energy efficiency and lower carbon emissions

The Micron 6600 ION brings a new level of energy efficiency to data centers. Helping to create a more sustainable data center with reduced energy consumption, it helps reduce CO2 emissions and lowers cooling requirements.

Technology leadership

Powered by Micron’s groundbreaking G9 QLC NAND—the industry’s first ninth-generation NAND used in a data center SSD—the 6600 ION features a vertically integrated architecture, including Micron-designed controller, DRAM, and firmware.1 3

The industry’s highest capacity commercially available SSD

The Micron 6600 ION SSD portfolio includes a massive 245.76TB usable capacity and 256TB raw capacity SSD, delivering the world’s largest SSD and giving data centers unprecedented density in a single drive.1 Built with 4‑bit‑per‑cell (QLC) technology, the Micron G9 QLC NAND helps to achieve massive storage scale and PCIe® Gen5 performance. The large capacity 245.76TB SSD allows data center operators to store more data and reduce power and cooling demands while also simplifying infrastructure growth and management. With this breakthrough in high‑density QLC innovation, the Micron 6600 ION helps enable AI data lakes, object storage, analytics and other data intensive workloads to scale efficiently while helping to lower total cost of ownership.4

Micron 6600 ION SSD product family

Featured resources

Frequently asked questions

The Micron 6600 ION offers up to 245.76TB of usable storage and 256TB of raw storage—the biggest SSD and highest-TB solid state drive on the market as of its launch. This industry-leading drive delivers the largest SSD capacity for data-center storage and high-capacity workloads. Its QLC architecture is engineered to deliver exceptional storage efficiency for AI data lakes, analytics, cloud, and hyperscale workloads.1

High-capacity hard disk drives (HDDs) cannot match the low latency, fast read access required by modern workloads. They require significantly more space, power, and cooling for a similar capacity. The Micron 6600 ION 245TB SSD in the E3.L form factor dramatically increases rack-level capacity—up to 177 PB per rack (assuming 36U available in a 42U rack) vs. 32 PB for HDDs with 44TB HDDs. With up to 40 E3.L SSDs in a 2U server, the Micron 6600 ION 245TB SSD requires 5.5x fewer racks than modern HDD configurations, enabling higher density, fewer servers, and better data center scalability.

The next-generation Micron G9 QLC NAND, used in the Micron 6600 ION SSD, delivers higher performance and density than competitive QLC alternatives. Its six-plane NAND architecture increases parallelism, enabling more simultaneous read/write operations and improving throughput for today’s data center workloads. With an I/O transfer rate up to 3.6 GB/s, Micron G9 QLC is the fastest QLC NAND currently shipping in an SSD.

The Micron 6600 ION has lower power consumption per terabyte than HDDs, helping lower cooling demands and overall carbon emissions. The 245TB model consumes up to 30W, while a typical 44TB HDD consumes ~10W. This allows the Micron 6600 ION 245TB SSD to deliver 8.2 TB per watt,compared to 4.4 TB per watt for 44TB HDDs. This efficiency helps data center operators reduce energy costs, improve Power Usage Effectiveness (PUE), and meet sustainability and TCO targets. For more information, view the Micron 6600 ION product brief.

The Micron 6600 ION 245TB is designed for organizations that need extreme capacity, efficient scaling, and fast access to large datasets. Industries that benefit from this ultra-dense QLC enterprise SSD include:

  • AI and machine learning platforms, including model training and inference pipelines
  • Cloud service providers offering scalable object and file storage
  • Media, entertainment, and streaming services managing massive video libraries
  • Telecommunications and CDN providers distributing content globally
  • Financial services and fintech companies running large-scale analytics and real-time data systems
  • Research institutions and HPC environments storing scientific datasets and simulations

All Micron 6600 ION SSDs support PCIe Gen5, delivering high bandwidth for data-intensive applications.

The Micron 6600 ION SSD is available in multiple capacities: 245TB, 122TB, 60TB and 30TB. To meet a variety of density and performance needs, the drive is available in E3.S, E3.L, and U.2 form factors. For more information, view the Micron 6600 ION product brief.

1. SSD comparisons are based on announced PCIe Gen5 capacity-focused data center SSDs with read intensive endurance, from the top five competitive suppliers of OEM data center SSDs by revenue as of February 2026, as per Forward Insights analyst report, “SSD Supplier Status Q1/26”.
2. Capacity per U calculated as E3.L: (245TB per SSD) x 40 SSDs per 2U server and filling 36U of rack space with the servers yields 4.9PB per U; E3.S: (122TB per SSD) x 20 SSDs per 1U server using 36U of rack space = 2.45PB per U.
3. NAND comparisons are based on production NAND from the top five competitive NAND suppliers as of May 2025, as noted in the Forward Insights analyst report, “NAND Quarterly Insights Q1/25.” Comparisons are based on publicly available NAND information available at product launch.
4. Micron 6600 ION: 245.76TB @ 30 watts = 8.2TB managed per watt. 44TB HDD: 44TB @ 10 watts = 4.4TB managed per watt. The difference is calculated as (8.2 / 4.4) = 1.9x better power efficiency than HDDs.

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