Transitioning from the EOL Micron 9300 SSD to the New Micron 9400 SSD

Posted by Nicole Liantonio on February 15, 2023 at 10:45 AM

Micron recently announced that the new 9400 NVMe SSD is in production as of the beginning of 2023. This drive will serve as the replacement to the previous 9300 series that is EOL (end of life) as of 2022.

The Micron 9400 SSD brings impressive storage capacity and performance to your data center application. The industry-leading 30TB capacity enables maximum storage density by bringing twice the maximum capacity of the 9300 and simplifies data management by using half as many servers to help reclaim rack space and reduce maintenance costs.

This drive is optimized for high-performance workloads that require strong mixed performance and massive capacity (e.g., caching, database acceleration, AI, content delivery), with a mixed workload performance up to 2.3x greater than leading competitors.

Higher power efficiency from the 9400 helps reduce TCO (total cost of ownership) by up to 77%, as well as lower your carbon footprint to reduce your environmental impact.




Read on to learn more about the 9300 to 9400 transition process, EOL dates you need to know, a few helpful FAQs from our Micron FAE Keith Peterson, and comprehensive 9300 to 9400 conversion tables.


Key EOL Dates

Here are some dates to keep in mind as you place your final orders for the 9300 series:

  • 3 Month LTB (Last Time Buy) Period - all orders must be received by January 31, 2022
  • 4 Month LTS (Last Time Ship) Period - all previously received orders will be continuing to ship between January 1, 2022 and April 30, 2022


Q&A with our FAE, Keith Peterson

Our specialized Micron FAE, Keith Peterson, answers a few of the most asked questions regarding the transition process from the 9300 to the 9400.

Q: What is new in the Micron 9400 SSD compared to the Micron 9300 SSD?

A:  There is a big change, and that's a good thing! The Micron 9400 leverages the same proven architecture and firmware stack as the Micron 9300. The major change was to refresh the product onto the latest 176-layer TLC NAND and move from PCIe Generation 3 interface used by the 9300 to the new PCIe Gen 4 interface now used in the 9400 series. In 2023, PCIe Gen 4 is the new standard. Compared to PCIe Gen 3, it offers two times the transfer rate per lane (16 GT/s). This means that an equivalent number of PCIe Gen 4 lanes can support about two times the throughput of the same number of PCIe Gen 3 lanes.

Q: What are the other improvements of the Micron 9400 over the previous generation Micron 9300?

A: Many improvements have been included in the Micron 9400, including:

  • The maximum capacity is now 30TB, a massive improvement from the previous max capacity of 15TB.
  • The Micron 9400 now includes 128 namespaces versus the 32 namespaces of the Micron 9300 series.
  • The Micron 9400 SSD has up to 77% better power efficiency than the prior generation SSDs. Increasing power efficiency can lower your carbon footprint and reduce environmental impact.
  • The U.2 to U.3 form factor. The U.3 form factor is reverse compatible with the U.2 form factor connections, but adds support for Tri-Mode (NVMe, SAS, or SATA) host controllers, making host platform design and field support easier. Both U.3 and U.2 SSDs are designed for standard !U or 2U front access "hot swap" server platforms.


9300 to 9400 Part Number Conversions



Form Factor Capacity 9300 Part Number New 9400 Part Number
U.2 3.84TB MTFDHAL3T8TDP-1AT1ZABYY No replacement



Form Factor Capacity 9300 Part Number New 9400 Part Number
U.2 3840GB MTFDHAL3T2TDR-1AT1ZABYY No replacement


Looking for personalized help with selecting the correct SSD for your application? Reach out to us, and we'll get you in touch with Keith Peterson, our Micron FAE, who can provide expert recommendations based on your project's specific needs.

Topics: Micron, SSDs, Storage