HPE P40480-B21 400GB 24GBPS SSD
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HPE P40480-B21 400GB SAS 24GBPS Write Intensive Sff Bc Tlc Bulk

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Part Number#: P40480-B21
List Price was: $2630.56
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Short Description:
HPE P40480-B21 400GB SAS 24GBPS Write Intensive Sff Bc Tlc Solid State Drive for Servers | New Sealed Spare
Product Condition:
New Sealed Spare
Warranty provided by ALLHDD.COM:
90 Days

Exploring the Write Speeds

The HPE P40480-B21 is a solid-state drive designed for use in enterprise-level server environments. It is a write-intensive drive, meaning it is optimized for workloads that involve frequent and sustained writes, such as databases or virtualization environments.

In terms of write speeds, the P40480-B21 has a maximum sequential write speed of up to 2.7 GB/s and a maximum random write speed of up to 400,000 IOPS (input/output operations per second). These speeds are achieved through the use of SAS (Serial Attached SCSI) technology, which provides a high-speed, low-latency interface between the drive and the server.

It's important to note that actual write speeds will depend on a variety of factors, including the specific workload, the configuration of the server and storage system, and the overall network infrastructure. Additionally, sustained high-speed writes can impact the lifespan of the drive, as the constant writing can lead to wear and tear on the NAND flash memory cells. To mitigate this, the P40480-B21 uses TLC (triple-level cell) NAND flash technology, which provides a balance of performance and durability for write-intensive workloads.

Troubleshooting Common Issues

If you encounter issues with the HPE P40480-B21 solid state drive, here are some common troubleshooting steps that you can take:

  • Check the server and storage system configuration: Make sure that the server and storage system are properly configured to work with the P40480-B21 drive. Ensure that the SAS interface is properly connected and configured, and that the appropriate drivers and firmware are installed.
  • Check for firmware updates: Check the HPE support website for any firmware updates or patches for the P40480-B21 drive. Keeping the drive's firmware up-to-date can help to address any performance or compatibility issues.
  • Check for errors and logs: Check the server and storage system logs for any errors or warnings related to the P40480-B21 drive. These logs can provide valuable information about the cause of any issues.
  • Perform diagnostics tests: HPE provides diagnostic tools that can be used to test the P40480-B21 drive and identify any potential issues. These tools can be accessed through the HPE Smart Storage Administrator (SSA) software.
  • Replace the drive: If the above steps do not resolve the issue, the P40480-B21 drive may need to be replaced. If the drive is under warranty, contact HPE support for assistance with the replacement process.

It's important to note that the above steps are general troubleshooting guidelines, and specific steps may vary depending on the exact nature of the issue. If you are unsure about how to proceed with troubleshooting or need further assistance, contact HPE support for help.

Best Practices for Maintaining

Here are some best practices for maintaining the HPE P40480-B21 solid state drive:

  • Keep firmware up-to-date: Regularly check the HPE support website for any firmware updates or patches for the P40480-B21 drive. Keeping the drive's firmware up-to-date can help to address any performance or compatibility issues.
  • Monitor performance: Monitor the performance of the P40480-B21 drive regularly to ensure that it is operating optimally. HPE provides diagnostic tools that can be used to monitor the drive's performance and identify any potential issues.
  • Optimize workload: The P40480-B21 drive is optimized for write-intensive workloads, such as databases or virtualization environments. Ensure that the workload is properly optimized for the drive's capabilities to maximize performance and longevity.
  • Use RAID: Consider using RAID (redundant array of independent disks) with the P40480-B21 drive to improve performance and data redundancy. HPE supports various RAID configurations for the P40480-B21 drive.
  • Monitor drive health: Use HPE Smart Storage Administrator (SSA) software or other monitoring tools to regularly check the health of the P40480-B21 drive. This can help to identify any potential issues before they become more serious.
  • Backup data: Regularly backup data stored on the P40480-B21 drive to ensure that it is protected in the event of a drive failure or other issue.
  • Maintain appropriate operating conditions: Ensure that the P40480-B21 drive is maintained within the appropriate operating conditions, such as temperature and humidity ranges, to avoid any potential damage or performance issues.

General Information

  • Manufacturer: HPE
  • Model Number or SKU# P40480-B21
  • Type: Solid State Drive (SSD)
  • SSD Type: SAS-24GBPS

Technical Information

  • Capacity : 400 GB
  • Height : 15 Mm
  • Form Factor : Sff
  • Interface : Sas-24gbps
  • Plug Type : Hot Plug
  • Carrier Type : Bc


  • Random Reads : Up To 150000 Iops
  • Random Writes : Up To 125000 Iops
  • Sequential Reads : Up To 1080 Mbps
  • Sequential Writes : Up To 1035 Mbps

Product Dimensions & Weight

  • Height: 0.63 inch
  • Width: 3.10 inch
  • Depth: 5.45 inch
  • Weight: 1.50 lbs

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

When it comes to computing, priorities are placed on storage and performance. The hard drive is often viewed as a major storage device. However, there is alternative hardware that can do a perfect job. People now use Solid State Drives as the main storage device for a wide range of technological needs.

An SSD is a nonvolatile storage media that stores data on solid-state flash memory. It emulates the hard disk drive by enhancing servers' capabilities and performance, desktop computers, and other devices. Users view them as the best option for responsiveness, increased disk space, and better performance.


Solid State Drives and hard disk drives are somewhat similar in their physical specification. However, they store data in different ways. HDD stores data magnetically via spinning disk platters. It has an actuator arm with transducers that read and write data on the platter.

On the other hand, an SSD stores data in integrated circuits. It has no moving parts and does not require users to wait for platter movement. They are much smaller and more flexible than hard disk drives - HDDs. Having no physical moving parts and using electrical circuits makes solid-state drives faster than their hard drive counterparts.

Their faster speed makes them more useful when carrying out storage-intensive tasks. Many SSDs also come with PCIe interfaces, which makes them faster than HDDs with SATA interfaces. Also, SSDs are generally more reliable than HDDs. This is because they have no moving parts, and vibration or friction does not affect them.

Data access with SSDs is faster, so they require less power. This results in longer battery life for servers and computers. HDDs, on the other hand, require more power because of their moving disk platters.

How to Do Solid State Drives Work?

Solid State Drives read and write data on interconnected flash memory chips. They come with floating gate transistors (FGRs) that help them hold electrical charges. With the FGRs, SSDs retain information even when power is turned off.

The NAND flash memory stores the data of the SSD. They make use of four NAND cell technologies – single, multi, triple, and Quad-level cells. Single-level cells (SLC) hold one bit of data at a time.

Multi-level cells (MLC) can hold two bits of data per cell. They have more storage space than SLC. Triple-level cells (TLC) hold three bits of data per cell, offering more capacity than the SLC and MLC. The Quad-level cells (QLC) store four bits of data, giving migrating electrons the most significant effect.

Types of SSDs

The types of solid-state drives depend on the way they are used. Some of these devices are installed within the system hardware, while others are connected externally through ports. The common interfaces for SSD connection are:

  • PCIe and NVMe

Users make use of PCI Express (PCIe) to connect graphics cards and related high-performance peripherals. It is an interface with low latency and high bandwidth. Therefore, it is ideal for very fast communication between the SSD and the server.

Nonvolatile Memory Express standard (NVMe) offers higher input-output per second. SSDs that use this connection type run at up to 4,000 MB/s.


Serial Advanced Technology Attachment (SATA) is an older interface than the PCIe. Their signaling technology allows them to transfer data faster than traditional hard disk drives - HDDs. They have speeds of up to 600MB per second. SATA SSDs also offer the best compatibility and value than the HDD variants.

There are SSDs that are designed for business purposes. They can be external or internal, and they are convenient means of boosting PCs, desktop computers, gaming consoles, and servers.


The Serial-Attached SCSI (SAS) version SSDs provide faster data transfer rates than the SATA SSDs. In general, a SAS SSD provides a dual-port connection and builds in features to improve reliability, high error correction, low data latency, end-to-end data integrity, high signal quality on the cable or backplane which is a NAND flash-based storage and fits in HDDs slot of enclosures. A SAS solid-state drive bandwidth speeds 3Gbps, 6Gbps, and 12Gbps, there are two form factors 2.5 inches and 3.5 inches.

There are SSDs that are designed for business purposes. They can be external or internal, and they are convenient means of boosting PCs, desktop computers, gaming consoles, and servers.


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30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

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(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

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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