HPE P41264-B21 PCI- Express Controller
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HPE P41264-B21 PCI-E Controller NS204i-p x2 Lanes NVMe 3 x8 New

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Part Number#: P41264-B21
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Short Description:
HPE P41264-B21 NS204i-p x2 Lanes Non-Volatile Memory Express (NVMe) Peripheral Component Interconnect Express (PCI-E) Controller 3 x8 OS Boot Device without NVMe SSD | Made by HPE | Brand New 3 Years Warranty
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product Overview for the HPE P41264-B21 PCI-E Controller

In the world of data storage and server technology, various components play a crucial role in ensuring the efficient and reliable operation of systems. The HPE P41264-B21 PCI-E Controller NS204i-p x2 Lanes NVMe 3 x8 OS Boot Device is one such component that offers a high-performance solution for managing storage devices within a server. In this comprehensive guide, we will delve into the details of this controller, breaking down its specifications and functions in simple terms.

What is the HPE P41264-B21 PCI-E Controller?

The HPE P41264-B21 is a PCI-E (Peripheral Component Interconnect Express) controller card designed by Hewlett Packard Enterprise (HPE). This controller card is specifically engineered for managing storage devices, with a particular focus on NVMe (Non-Volatile Memory Express) SSDs (Solid State Drives). The "NS204i-p" designation suggests that it is part of the HPE ProLiant family of servers and is intended for use as an OS (Operating System) boot device.

Understanding PCI-E Controllers

To comprehend the significance of the HPE P41264-B21 PCI-E Controller, one must first understand what a PCI-E controller is and its role in server hardware.

PCI-E, which stands for Peripheral Component Interconnect Express, is a high-speed interface standard used for connecting various hardware components within a computer or server. It has replaced older standards like PCI (Peripheral Component Interconnect) and provides faster data transfer rates and lower latency.

PCI-E controllers are expansion cards that are inserted into the motherboard of a server or computer. They serve as a bridge between the motherboard and other hardware components, enabling the efficient exchange of data and control signals. These controllers come in various form factors, including x1, x4, x8, and x16, which indicate the number of data lanes they can use for data transmission.

In the case of the HPE P41264-B21, it is an x8 PCI-E controller card, meaning it utilizes eight data lanes for communication. This design allows it to handle high-speed data transfers, making it suitable for demanding storage applications.

NVMe Technology Explained

NVMe, or Non-Volatile Memory Express, is a protocol designed for the efficient communication between a host system and non-volatile memory storage devices, such as SSDs. Unlike traditional storage protocols like SATA (Serial Advanced Technology Attachment) or SAS (Serial Attached SCSI), NVMe is optimized for the characteristics of modern NAND flash memory, providing low latency, high throughput, and improved I/O (Input/Output) operations.

Key Features of HPE P41264-B21

The HPE P41264-B21 PCI-E Controller comes with a range of features that make it a powerful and reliable solution for managing NVMe SSDs in a server environment. Let's explore some of its key features:

  • NVMe Support: As the name suggests, this controller is optimized for NVMe SSDs. It ensures that these high-performance storage devices can operate at their full potential, delivering faster data access and reduced latency.
  • x8 Lanes: The HPE P41264-B21 utilizes eight data lanes, thanks to its x8 PCI-E form factor. This allows it to handle a substantial amount of data simultaneously, which is crucial for demanding workloads and data-intensive applications.
  • Compatibility: This controller is specifically designed for HPE ProLiant servers, ensuring seamless compatibility with the brand's hardware. This compatibility guarantees that the controller can be easily integrated into HPE server configurations.
  • Boot Device: The "OS Boot Device" designation indicates that this controller can be used to host the server's operating system. By doing so, it ensures fast and reliable boot times, contributing to the overall performance of the server.
  • Data Protection: The HPE P41264-B21 comes with features for data protection and integrity. This is crucial for ensuring that data remains safe and intact, even in the event of unexpected power loss or system failures.
  • Ease of Management: HPE provides management tools and software that make it easy to set up and monitor the controller's performance. These tools enable administrators to optimize storage configurations for specific workloads.

Use Cases

The HPE P41264-B21 PCI-E Controller can be employed in various server environments to enhance storage performance and reliability. Here are some common use cases:

  • Database Servers: In database server applications, where data access speed is critical, this controller can be used to host the database files, resulting in faster queries and data retrieval.
  • Virtualization: Servers used for virtualization can benefit from the high-speed data transfer capabilities of this controller. It can be used to store virtual machine images, improving the overall responsiveness of the virtualized environment.
  • Content Delivery: Servers used for content delivery networks (CDNs) can leverage the controller's speed for quick content delivery, reducing latency for end-users.
  • High-Performance Computing (HPC): HPC clusters rely on fast storage for parallel processing. The HPE P41264-B21 can significantly improve the I/O performance of HPC systems.
  • Cloud Computing: In cloud computing environments, especially in scenarios where fast data access is required, such as running virtual instances or databases in the cloud, this controller can be used to boost overall system performance.
Benefits of Using HPE P41264-B21

Utilizing the HPE P41264-B21 PCI-E Controller in your server configuration offers several benefits:

  • Improved Performance: The controller's NVMe support and x8 lanes ensure that your storage devices can perform at their best, resulting in faster data access and lower latency.
  • Reliable OS Booting: When used as an OS boot device, it provides reliable and fast server boot times, ensuring minimal downtime.
  • Enhanced Data Protection: The controller comes with features that safeguard data integrity, even in the event of power loss or system failures.
  • Ease of Management: HPE provides management tools and software that simplify controller configuration and monitoring.
  • Compatibility: Designed for HPE ProLiant servers, it guarantees compatibility with HPE hardware, ensuring a smooth integration process.
  • Scalability: The HPE P41264-B21 allows you to scale your storage infrastructure to meet increasing data demands, making it suitable for growing businesses.
Compatibility and System Requirements

Before purchasing the HPE P41264-B21 PCI-E Controller, it's important to ensure that it is compatible with your server and meets the necessary system requirements. Here are some considerations:

  • Server Compatibility: This controller is primarily designed for HPE ProLiant servers. Ensure that your server model is listed as compatible in the official HPE documentation.
  • PCI-E Slot: Verify that your server has an available x8 PCI-E slot to accommodate the controller card.
  • NVMe SSD Compatibility: Check whether your NVMe SSDs are compatible with the controller, as not all NVMe drives may work seamlessly with all controllers.
  • Driver and Software: Make sure you have access to the necessary drivers and management software provided by HPE to configure and monitor the controller.
  • Operating System: Ensure that your chosen operating system supports NVMe and that it is compatible with the controller.
  • Power Requirements: Check if your server's power supply is capable of supporting the additional power requirements of the controller and the connected NVMe SSDs.
  • Firmware Updates: Keep the controller's firmware up to date to benefit from the latest features and improvements.

General Information about this HPE P41264-B21

  • Manufacturer: HPE
  • Part Number or SKU# P41264-B21
  • Product Type: Expansion Module
  • Product Name: Controller

Technical Specifications

  • Storage Format: SSD
  • Color: Multicolor
  • Form Factor: 2.5 inches
  • Model: NS204i-p
  • Supported Drive Type: SSD (Solid State Drive)
  • Features: PCI-E 3 x8, NVMe, 2 Lanes
  • Type: OS Boot Device
  • Interface: NVMe, PCI-Express

In summary, the HPE P41264-B21 PCI-E Controller NS204i-p x2 Lanes NVMe 3 x8 OS Boot Device is a high-performance storage solution designed for HPE ProLiant servers. By optimizing NVMe SSDs and utilizing an x8 PCI-E form factor, it provides fast and reliable data access, making it ideal for a variety of server applications. With its data protection features, ease of management, and compatibility with HPE hardware, this controller offers a range of benefits, including enhanced performance, reliability, and scalability. It is an essential component for businesses and organizations seeking to optimize their server storage infrastructure and deliver improved services to their clients and end-users.

Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days


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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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