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Orderable Part Information
Status Production Alternative Part N/A
FBGA Code N/A SPD Data N/A
MBQual Data N/A Shipping Media N/A
PLP No Start Date N/A

Capacity 350GB Package HHHL PCIe
Voltage 12V Op Temp 0C to +50C
Interface PCIe Random READ 785K IOPs
Sequential READ 3.2 GB/s Product Name P320h
Special Options

Recently Added

Date What was added
09/2014 Support Pack Version 145.03.00_Linux_VMware Release for Distribution.
09/2014 Support Pack Version 145.03.00_Windows Release for Distribution

Sim Models & Software

Title & Description Secure ID Updated
Support Pack Version 145.03.00_Linux_VMware Release for Distribution. :  Support Pack Version 145.03.00_Linux_VMware - Contains, Drivers, RSSDM, Install Guildes 09/2014
Support Pack Version 145.03.00_Windows Release for Distribution:  Support Pack Version 145.03.00 Windows - Contains drivers, RSSDM, Install Guides 09/2014
See all Sim Models (2)

Documentation & Support



Featured Documentation: PCIe Server Compatibility Guide

Title & Description Secure ID# Updated Type
P320h HHHL PCIe NAND SSD : (PDF 387.4 KB) P320h 08/2014 Data Sheet
P320h/P420m SSD Performance Optimization and Testing: (PDF 933.05 KB)This technical note describes how to optimize and test the performance of the Micron P320h and P420m SSDs. TN-FD-15 04/2014 Technical Note
P320h PCIe SSD Boot Storm Testing in Virtualized Environments: (PDF 948.62 KB)This technical brief provides an overview of using the P320h as a virtual storage device in VMware and describes how the P320h performs in comparison to traditional deployments using HDDs and NAS devices during boot storm events. 05/2013 Technical Marketing Brief
P320h PCIe SSD Maximizes Database Reporting Performance: (PDF 311.34 KB)This technical brief discusses how Micron's IT organization uses the P320h as a MySQL database to run MySQL reports nearly 20 times faster than network attached storage (NAS) systems. 01/2013 Technical Marketing Brief
P320h Performance on Non-Uniform Memory Access (NUMA) Systems: (PDF 354.37 KB)This technical note discusses the performance of P320h SSDs in NUMA systems. TN-FD-17 01/2013 Technical Note
For Enterprise PCIe SSD (27)
Title & Description Secure ID# Updated Type
Micron SSDs Provide Storage Muscle for SilverDraft's Supercomputers: (PDF 162.16 KB)The reliability and high performance of Micron’s SSDs help SilverDraft's rendering platforms manage tremendous data rates. 11/2014 Case Study
TCO Ramifications of SSD Write Endurance : (PDF 161.54 KB) This paper explains when it is most economical to purchase a low-cost, lower-endurance SSD versus a more expensive, higher-endurance SSD. 10/2014 Technical Marketing Brief
How Micron SSDs Handle Unexpected Power Loss: (PDF 357.41 KB) This paper discusses the data protection schemes employed by Micron's SSDs to protect against unexpected power loss. 10/2014 White Paper
Using SSDs to Reduce Storage Bottlenecks in Virtualized Environments: (PDF 145.19 KB) Micron’s enterprise-class SSDs can be used to address challenges that can adversely impact server virtualization and VDI implementation. 09/2014 Technical Marketing Brief
P420m 2.5-Inch PCIe NAND Flash SSD: (PDF 414.83 KB)P420m 2.5-Inch PCIe SSD Data Sheet 08/2014 Data Sheet
Accelerating VMware Virtual SAN With Micron SSDs: (PDF 114.93 KB) This technical brief gives an overview of virtual SANs and explains how Micron's SSDs can be used to take full advantage of a virtual SAN's performance. 07/2014 Technical Marketing Brief
LexisNexis + Micron SSDs = Faster, More Reliable Big Data Analytics: (PDF 210.54 KB)The reliability and performance of Micron’s M500 SSDs help LexisNexis Risk Solutions deliver authentication and risk assessment data on time. 07/2014 Case Study
Micron P420m PCIe SSD Product Brief : (PDF 584.57 KB) The P420m solid state drive (SSD) uses Micron’s cost-effective 25nm multilevel cell (MLC) NAND to deliver enterprise-class PCIe performance at a price accessible to the mainstream market 05/2014 Product Flyer
P420m PCIe SSD HHHL Product Brief: (PDF 380.71 KB) 04/2014 Product Flyer
P420m SSD Endurance Characterization: Factors That Impact TBW: (PDF 229.46 KB)An overview of the testing that has been performed on Micron's P420m PCIe SSD to help highlight and explain some of the attributes that affect the TBW drive endurance metric. 04/2014 Technical Marketing Brief
P420m/P320h PCIe SSD Boot Drive Installation Guide: (PDF 205.35 KB) This document provides instructions for deploying a P420m or P320h PCIe SSD as a boot drive for Windows and Linux operating systems. 03/2014 Tool
Advantages of Micron SSDs for Data Centers: (PDF 255.74 KB) Micron’s broad portfolio of solid state drives provides the right storage solutions to meet the diverse requirements of today’s data centers and data centers of the future. 02/2014 Technical Marketing Brief
P420m PCIe SSD Boot Storm Testing in Virtualized Environments: (PDF 279.97 KB)Micron tested the behavior of several VMs on a system using a P420m 2.5-inch PCIe SSD, an HDD, and a NAS filer, and tracked each VM’s boot time during a boot storm. 02/2014 Technical Marketing Brief
Maximize Data Center Performance With Optimized Memory and Storage Solutions: (PDF 725.94 KB) Micron offers a broad portfolio of optimized solutions that deliver improved performance, increased bandwidth with less latency, and improved total cost of ownership. A range of choices—modules for servers and storage arrays, RLDRAM® memory for switch and router packet buffering, SSDs for higher performance and low-power storage, and NOR and NAND Flash for code storage—help businesses scale, simplify, consolidate, and automate, to get the maximum value out of their data centers. 02/2014 Product Flyer
Differences in Personal vs. Enterprise SSD Performance: (PDF 517.87 KB)This document describes some key factors that may impact performance of personal storage SSDs when used in conventional enterprise-class applications, and compares how these two types of drive perform. 12/2013 Technical Marketing Brief
PCIe SSD HHHL Installation Guide: (PDF 8.11 MB) This document describes how to install a P420m and P320h HHHL PCIe NAND Flash solid state drive (SSD). 12/2013 Tool
Tackling Fast-Moving Big Data Problems with an SSD Architecture - A Micron/Dstillery Case Study: (PDF 228.07 KB) Advertising technology pioneer, Dstillery, uses our Micron SSDs to replace HDDs to quickly and efficiently execute billions of web transactions with turnaround/delivery times measured in milliseconds. 12/2013 Case Study
NAND Flash Media Management Through RAIN: (PDF 794.03 KB) This brief describes the general concept of RAIN (redundant array of independent NAND) protection in enterprise solid state drives (SSDs) and details how this technology benefits Micron's RealSSD products. 11/2013 Technical Marketing Brief
Networking Solutions Guide: (PDF 240.27 KB)This guide outlines Micron’s various solutions—from DRAM components and modules to NOR and NAND Flash to solid state drives (SSDs)—available for networking applications. 06/2013 Product Flyer
Micron SSDs Offer a Superior Solution for Accelerating MySQL Databases: (PDF 341.88 KB)Micron SSDs accelerate MySQL databases by providing dramatically faster random data access and higher I/O throughput. 04/2013 Technical Marketing Brief
P320h HHHL PCIe Enterprise SSD Product Brief: (PDF 199.82 KB)Our RealSSD P320h HHHL PCIe drive delivers outstanding performance in enterprise applications that demand frequent, intensive READ access, such as media streaming, Web acceleration and data warehousing. 04/2013 Product Flyer
P320h 2.5-Inch PCIe Enterprise SSD Product Brief: (PDF 270.47 KB)Our P320h 2.5-Inch PCIe drive is an industry first—delivering unmatched performance and scalability for servers by integrating high-performance PCIe architecture into a compact, accessible form factor. 03/2013 Product Flyer
The Business Case for PCIe SSDs: (PDF 187.32 KB)Overview of the reliability, accessibility, serviceability, and overall cost reduction that PCIe SSDs offer. 03/2013 Technical Marketing Brief
Evaluating SSD Manufacturers: Why NAND Expertise Matters: (PDF 186.96 KB)Not all SSDs are created equal; it's important to consider a manufacturer's NAND Flash expertise before purchasing an SSD. 03/2013 Technical Marketing Brief
Shared PCIe SSD Technology Product Flyer: (PDF 186.33 KB)Benefits of Micron Shared PCIe SSD Technology 08/2012 Product Flyer
How System Settings Impact PCIe SSD Performance: (PDF 713.67 KB)This white paper discusses various system settings that can be tuned and adjusted to achieve maximum performance from PCIe SSDs. 08/2012 White Paper
Micron PCIe SSD Compatibility Guide: The PCIe SSD compatibility guide is a list of platforms in which Micron has confirmed interoperability with our PCIe SSDs. Tool
For Solid State Storage (10)
Title & Description Secure ID# Updated Type
SSD Part Numbering System: (PDF 41.45 KB)Part numbering guide for SSD products 06/2014 Part Numbering Guide
Nonvolatile Memory for Multiple Markets : (PDF 177.33 KB)Describes why Micron NVM is the best fit for your applications 01/2014 Product Flyer
The Effect of Host Data Patterns on SSD Write Performance: (PDF 434.23 KB)Despite their deceptively similar appearance, SSDs are not functionally identical to rotating drives (HDDs). This technical marketing brief focuses on one key way in which these devices differ: the effect that traffic patterns have on write performance. 12/2012 Technical Marketing Brief
C400v mSATA NAND Flash SSD: (PDF 335.16 KB)C400v mSATA NAND Flash SSD Rev. E 08/2012 Data Sheet
C400 mSATA NAND Flash SSD: (PDF 333.05 KB)C400 mSATA NAND Flash SSD Rev. D 08/2012 Data Sheet
Media Management in Solid State Drives: Multistep WRITE Operations: (PDF 823.8 KB)SSDs write data differently than conventional rotating hard drives (HDDs)—in a multistep process versus a single-step process. This brief examines the multistep write process for SSDs. 04/2012 Technical Marketing Brief
SSDs: A Shift in Data Storage: (PDF 1.21 MB)Overview of advantages, products for different markets, reliability 12/2009 Presentation
History of Digital Storage: (PDF 739.09 KB)This paper surveys the memory storage landscape of the past 50 years starting at the beginning of digital storage and paying homage to IBM™'s groundbreaking RAMAC disk storage unit and StorageTek™'s DRAM-based SSD; then enumerating the benefits of modern NAND Flash memory and advanced SSDs; and finally looking forward to the near-future possibilities of nonvolatile storage. 12/2009 White Paper
Putting SSDs to the Test: (PDF 190.07 KB)A recap of how Micron and Flexstar came to work together to develop and improve their own SSDs and SSD test platforms, respectively, and at the same time help move the industry forward with more reliable benchmarking. 12/2009 Case Study
Why SSDs for Ultrathins: (PDF 53.68 KB)Poised to become the platform of choice for mobile computing, ultrathins deliver their most impressive benefits because of Flash storage like SSDs. Product Flyer
For Products and Support (14)
Title & Description Secure ID# Updated Type
Micron Component and Module Packaging: (PDF 1.35 MB)Explanation of Micron packaging labels and procedures. CSN-16 11/2014 Customer Service Note
Product Marks/Product and Packaging Labels: (PDF 1.58 MB)Explains product part marking, and product and packaging labels. CSN-11 10/2014 Customer Service Note
Shipping Quantities: (PDF 1.22 MB)Provides standard part quantities for shipping. CSN-04 03/2014 Customer Service Note
RMA Procedures for Packaged Product and Bare Die Devices: (PDF 76.22 KB)Outlines standard returned material authorization (RMA) procedures, as well as the differences associated with bare die RMAs. CSN-07 01/2014 Customer Service Note
Wafer Packaging and Packaging Materials: (PDF 591.42 KB)Provides complete shipping and recycling information about each of the materials used for shipping Micron's products. CSN-20 11/2013 Customer Service Note
Thermal Applications: (PDF 246.79 KB)Describes some considerations in thermal applications for Micron memory devices TN-00-08 07/2013 Technical Note
Moisture Absorption in Plastic Packages: (PDF 97.08 KB)Describes shipping procedures for preventing memory devices from absorbing moisture and recommendations for baking devices exposed to excessive moisture TN-00-01 02/2013 Technical Note
Micron BGA Manufacturer's User Guide: (PDF 388.76 KB)Provides information to enable customers to easily integrate both leading-edge and legacy Micron's ball grid array (BGA) packages into their manufacturing processes. It is intended as a set of high-level guidelines and a reference manual describing typical package-related and manufacturing process-flow practices. CSN-33 12/2012 Customer Service Note
Electronic Data Interchange: (PDF 52.45 KB)Describes EDI transmission sets, protocol, and contacts. CSN-06 11/2012 Customer Service Note
PCN/EOL Systems: (PDF 79.21 KB)Explains Micron's product change notification and end-of-life systems. CSN-12 04/2012 Customer Service Note
Lead Frame Package User Guidelines: (PDF 245.66 KB)Discusses Micron's lead-frame package options CSN-30 05/2011 Customer Service Note
ESD Precautions for Die/Wafer Handling and Assembly: (PDF 120.81 KB)Describes the benefits of controlling ESD in the workplace, including higher yields and improved quality and reliability, resulting in reduced manufacturing costs. CSN-24 08/2010 Customer Service Note
Micron KGD Definitions: (PDF 65.52 KB)Describes the testing specifications and parameters for Micron's KGD-C1 and KGD-C2 DRAM die. CSN-22 07/2009 Customer Service Note
Bare Die SiPs and MCMs: (PDF 151.06 KB)Describes design considerations for bare die SiPs and MCMs. CSN-18 04/2009 Customer Service Note

Please Note: To view Secure Documents (Secure Lock) please log in or click on a secured document to request access.

Title & Description Secure ID# Updated Type
Support Pack Version 145.03.00_Windows Release for Distribution: (ZIP 226.42 MB)Support Pack Version 145.03.00 Windows - Contains drivers, RSSDM, Install Guides 09/2014 Software
Support Pack Version 145.03.00_Linux_VMware Release for Distribution. : (GZ 273.82 MB)Support Pack Version 145.03.00_Linux_VMware - Contains, Drivers, RSSDM, Install Guildes 09/2014 Software
For Enterprise PCIe SSD (0)
Title & Description Secure ID# Updated Type
For Solid State Storage (0)
Title & Description Secure ID# Updated Type
For Products and Support (0)
Title & Description Secure ID# Updated Type

Please Note: To view Secure Documents (Secure Lock) please log in or click on a secured document to request access.


  1. Micron Models: By downloading any Micron model from this site, you must agree to the terms of Micron's Simulation Models License Agreement. If you do not agree to terms, you do not have permission to use the site or download material from it.
  2. Non-Micron Models: For your convenience, Micron links to third-party simulation models. Note that Micron does not guarantee functionality or accuracy of these models.

Enterprise PCIe SSD FAQs (24)

Does PCIe replace SATA and SAS SSDs?

Not exactly. PCIe is a high-performance interface with performance targets of 415,000 IOPS and 2 GB/s of bandwidth. PCIe SSDs are intended to augment most server or storage systems by providing several hardware acceleration and caching capabilities to help boost performance. Performance targets vary per system and application. At Micron, we offer our customers choices—our complete SSD portfolio provides the best tool for the job.  

Is Micron a member of the SSD Small Form Factor Working Group?

Yes. Micron is an active, contributing member of the working group. www.ssdformfactor.org

What is the secure erase password for the P320h SSD?
What type of NAND is used in the P320h drive?
The P320h drive uses Micron’s SLC ONFI 2.1 NAND Flash.
Can I reduce power consumption on a PCIe drive?

Yes, you can reduce the drive’s power consumption to ≤25W by activating the power-limiting feature.

In the command-line version (CLI) of RSSDM, perform these steps:

  1. In the command line, type rssdm –M –p 1 –n <Drive_id>  where <Drive_id> can be found by running    rssdm –L .
  2. Apply the setting change by power-cycling the system.
  3. Verify the setting change by running  rssdm –L –d.

The power-limiting feature also can be activated through the RSSDM GUI:

  1. On the Server tab, select the drive (for example, rssda).
  2. The Status tab for the drive becomes active.
  3. On the Device menu, select Enable Power Limiting.
  4. A confirmation dialog box appears; select Yes to activate power limiting or No to cancel.
  5. Apply the setting change by power-cycling the system.
  6. On the next power-up, launch the RealSSDManager, select the drive again, and then click the Details tab to verify that power limiting is activated.
Can I use the PCIe 2.5-inch drive in existing server chassis?

Not exactly. You need a server chassis that has a supporting backplane with the 8639 combo connector that support PCIe/SATA/SAS.

Can a PCIe 2.5-inch drive go into my laptop?

No. This drive was not designed for client-based applications.

Do you provide source code for Linux driver development?

Yes, Linux source code is provided in the P320h and P420m support packs.

Do the PCIe SSDs require specific software and/or hardware?
The drives do require installation of a Micron driver, which is available in our support packs. The only hardware requirement is that the system must have a x4 PCIe Gen2 slot (2.5-inch) or a x8 PCIe Gen2 slot (HHHL) with a maximum power specification of 25W.
How do I access the PCIe SSD software and drivers?
Create a Micron user profile by completing our online form and following the instructions. After you have a profile, notify your FAE, distributor, or sales representative that you need the P320h support pack. Micron can then grant your user profile online access to the support pack. Be sure to download the latest release.
How do I update firmware on a PCIe SSD?

Updating firmware is explained in the RSSDM User’s Guide, which is available in the P320h and P420m support packs. Refer to the “Managing the P320h/P420m Drive Using the RSSDM GUI/CLI” and “Updating a Unified Binary Image UBI” sections.

Is the PCIe 2.5-inch only intended for server applications?

No. The 2.5-inch SSD has endless possibilities for adoption and application.  We are currently working with customers in non-enterprise applications that are reaping the performance and portability benefits of the PCIe 2.5-inch SSD.

Are the PCIe 2.5-inch SSDs available now?

Yes. For more information on availability, contact us.  

Are the PCIe drives available in an industrial temperature range?

Yes, Micron’s P420m drive is designed to operate within 0˚C to +70˚C.

What is Micron’s RAIN Technology?

Redundant array of independent NAND (RAIN) is essentially a classic data-protection scheme organized on the NAND devices of some models of Micron’s enterprise-class solid state drives. RAIN is a parity-protection scheme that helps ensure robust lifetime wear leveling and data protection similar to the data protection and redundancy found in redundant array of independent disks (RAID) systems .

What is the difference between data path protection and power-loss protection?

Data path protection provides an additional layer of protection against bit flips that is not offered by error code correction (ECC). Power-loss protection maintains voltage with capacitors so that writes can complete successfully and data is protected even if power is lost. 

What is the 2.5-inch PCIe SSD?

The 2.5-inch PCIe SSD is our same P320h half-height, half length (HHHL) PCIe SSD packed into a portable and scalable industry-standard 2.5-inch form factor.

What is the power throttling feature on the PCIe SSDs?

The power throttling feature is a special  firmware capability on Micron's PCIe drives that allows the IOPS performance to be reduced (throttled) so that the maximum average power of the drive does not exceed the 25W PCIe CEM slot power limit.  Disabling this capability improves drive performance but may also increase the >25W  dynamic power limit.  The default setting for this feature is “enabled,” meaning that the drive conforms to the 25W slotpower limit, but it may be disabled by the user if using Support Pack B125.02 or later. It cannot be disabled if using earlier support pack versions.

What is the RealSSD Manager?

Our RealSSD Manager is a GUI interface that enables users to track and manage the performance, workload, and lifespan of the PCIe drives.

What is the secure erase password for the P320h SSD?
What is XPERT?

eXtended Performance and Enhanced Reliability Technology (XPERT) is a suite of Micron-designed storage architecture enhancements that extend SSD performance and enhance reliability—both in terms of drive lifespan and data integrity. 

Micron aligns storage media (NAND) design, SSD firmware development, and hardware integration to create a comprehensive architecture that optimizes enterprise-class SSDs to meet the unrelenting demands of 24/7/365 data center workloads.

For more information, see our XPERT technical brief.

What type of applications would benefit from Micron’s PCIe drives?

Applications that require high performance, high density, and low latency would greatly benefit from Micron PCIe SSD solutions. This includes applications like video-on-demand, media streaming, virtualization appliances, web accelerators, and frequently accessed data-storage warehouses.

What type of NAND is used in the P420m drive?

The P420m drive uses Micron’s MLC ONFI 2.1 NAND Flash.

Where does the PCIe 2.5-inch case fit into a server?

The PCIe 2.5-inch fits into the front end of the server where SATA and SAS SSDs traditionally fit. 

Products and Support FAQs (1)

Who do I contact if I have questions about my buymicron.com order?
If you have any questions about your order, contact buymicron.com.