HPE P40475-B21 800GB Solid State Drive
If you need a large quantity of P40475-B21 product - call us through our toll-free number at (800) 675 5044 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
+1 (800) 675 5044 (Toll-Free)
FREE Shipping.
28 of 61

HPE P40475-B21 800GB SAS 24GBPS SSD Mixed Use SFF TLC Brand New

Check Availability
Part Number#: P40475-B21
Your Price:
Contact us for a price

Short Description:
P40475-B21 800 Gigabyte(GB) Serial-Attached SCSI (SAS) 24 Gigabytes Per Second (GBPS) Small Form Factor (SFF) Mixed Use Triple Level Cell (TLC) Solid State Drive for Server | Made by HPE | Brand New 3 Years Warranty
Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days
Product Overview of the HPE 800GB SSD

In the ever-evolving world of data storage and server technology, the HPE P40475-B21 800GB SAS 24Gbps SSD Mixed Use SFF TLC is a product that deserves special attention. This compact and powerful Solid State Drive (SSD) by Hewlett Packard Enterprise (HPE) offers a remarkable blend of performance, capacity, and reliability for businesses and individuals alike. In this detailed guide, we will explore every aspect of the HPE P40475-B21 SSD, from its specifications and features to its potential use cases and benefits.

The HPE P40475-B21 SSD is a high-performance storage solution developed by Hewlett Packard Enterprise (HPE). It is designed to meet the increasing demands for data storage and retrieval in modern data centers, servers, and enterprise environments. This SSD is part of the HPE ProLiant server and storage portfolio, which is known for its reliability and cutting-edge technology.


The HPE P40475-B21 offers a storage capacity of 800GB. This sizeable capacity makes it suitable for a wide range of applications, from hosting databases to handling virtual machines.


This SSD utilizes a SAS (Serial Attached SCSI) interface. SAS is a high-speed data transfer interface commonly used in enterprise storage solutions. It ensures fast and reliable communication between the SSD and the host system.

Form Factor

The HPE P40475-B21 SSD has a Small Form Factor (SFF) design. This means it is compact and can fit into smaller spaces within server racks, making it a versatile choice for various server configurations.

NAND Flash Type

One of the critical factors in an SSD's performance and durability is the type of NAND flash memory it uses. The HPE P40475-B21 SSD utilizes TLC (Triple-Level Cell) NAND flash memory, which we will explore in more detail later in this guide.


Endurance refers to the lifespan of an SSD and how many write cycles it can endure. The HPE P40475-B21 SSD offers a balance between endurance and cost-effectiveness, making it suitable for mixed-use scenarios. More information on mixed-use SSDs is provided in section 4.

Data Transfer Speed

This SSD is capable of reaching impressive data transfer speeds with a 24Gbps SAS interface. The high-speed interface ensures quick access to data, reducing latency and improving overall system performance.

Understanding SAS and TLC

Before delving deeper into the HPE P40475-B21 SSD, it's essential to understand the two key technologies it incorporates: SAS (Serial Attached SCSI) and TLC (Triple-Level Cell) NAND flash memory.

SAS (Serial Attached SCSI)

SAS is a data transfer interface commonly used in enterprise storage environments. It builds upon the SCSI (Small Computer System Interface) protocol, which has been a standard in the industry for decades. SAS offers several advantages:

  • High Data Transfer Speeds: SAS interfaces, including the 24Gbps interface used in the HPE P40475-B21 SSD, provide exceptional data transfer rates. This high speed is crucial for data-intensive tasks in enterprise settings.
  • Reliability: SAS is known for its reliability and robustness. It includes features like error detection and correction, making it suitable for critical applications where data integrity is paramount.
  • Scalability: SAS supports daisy-chaining of multiple devices, allowing for easy expansion of storage capacity without sacrificing performance.

TLC (Triple-Level Cell)

NAND flash memory is the storage medium used in SSDs, and it comes in different types, including SLC (Single-Level Cell), MLC (Multi-Level Cell), and TLC (Triple-Level Cell). TLC NAND flash memory, as used in the HPE P40475-B21 SSD, offers a balance between capacity and cost-effectiveness:

  • Capacity: TLC NAND can store three bits of data per cell, making it more space-efficient than SLC and MLC NAND. This allows for larger storage capacities without a significant increase in cost.
  • Cost-Effectiveness: TLC NAND is generally more affordable to produce than SLC and MLC NAND, which makes TLC SSDs a cost-effective choice for various applications.
  • Endurance: While TLC NAND has a lower endurance compared to SLC and MLC NAND, it is still suitable for many workloads, especially when paired with wear-leveling algorithms and over-provisioning.

Mixed Use vs. Read-Intensive vs. Write-Intensive SSDs

SSDs are categorized into different classes based on their intended use and workload characteristics. Understanding these categories can help you choose the right SSD for your specific needs. The HPE P40475-B21 SSD falls into the "Mixed Use" category. Let's briefly explore the three main categories:

  • Mixed Use SSDs: Mixed-use SSDs are designed to handle a combination of read and write workloads. They are versatile and can be used in a wide range of applications, making them an excellent choice for environments where workloads vary.
  • Read-Intensive SSDs: Read-intensive SSDs are optimized for applications that primarily involve reading data, such as web servers and content delivery networks (CDNs). They may not be suitable for write-intensive workloads.
  • Write-Intensive SSDs: Write-intensive SSDs are engineered for applications that involve frequent data writes, such as database servers and logging systems. They have higher endurance but may come at a higher cost.

The HPE P40475-B21 SSD's "Mixed Use" designation indicates that it is well-suited for scenarios where both read and write operations are prevalent, striking a balance between performance and endurance.

Use Cases for the HPE P40475-B21 SSD

Now that we have a solid understanding of the HPE P40475-B21 SSD's specifications and technology, let's explore some of its potential use cases:

  • Database Servers: The HPE P40475-B21 SSD's combination of high capacity and SAS interface makes it an excellent choice for hosting databases. It can handle the read-and-write operations required for efficient database management.
  • Virtualization: Virtualized environments benefit from fast and reliable storage solutions. This SSD can accelerate virtual machine performance, ensuring smooth operation in virtualized data centers.
  • Content Delivery: Content delivery networks (CDNs) require fast and responsive storage to deliver content to end-users quickly. The HPE P40475-B21 SSD's high data transfer speeds are well-suited for CDN servers.
  • Data Analytics: Big data and analytics applications require fast data access and processing. This SSD can enhance data analytics workloads by reducing data retrieval times.
  • Enterprise Storage: In enterprise storage arrays, the HPE P40475-B21 SSD can serve as a high-performance caching layer or as primary storage for mixed workloads.
  • Backup and Recovery: Reliable and fast storage is crucial for backup and recovery processes. The HPE P40475-B21 SSD's SAS interface ensures quick backup and recovery operations.

Benefits of Choosing HPE P40475-B21 SSD

Choosing the HPE P40475-B21 SSD for your storage needs offers several key benefits:

Enhanced Performance

One of the standout features of the HPE P40475-B21 SSD is its impressive performance. The 24Gbps SAS interface allows for lightning-fast data transfer speeds, reducing latency and ensuring that applications and workloads run smoothly. This enhanced performance is crucial for data-intensive tasks, such as database management and virtualization.

Reliability and Durability

HPE is renowned for its commitment to quality and reliability. The HPE P40475-B21 SSD is no exception. It is built to withstand the rigors of enterprise environments, featuring robust error detection and correction mechanisms. Additionally, the use of TLC NAND flash memory, combined with wear-leveling algorithms, ensures a satisfactory level of endurance, making it suitable for mixed-use scenarios.

Energy Efficiency

SSDs are known for their energy efficiency compared to traditional Hard Disk Drives (HDDs). The HPE P40475-B21 SSD not only offers high performance but also consumes less power, contributing to energy savings in data centers. Reduced power consumption leads to lower operating costs and a smaller carbon footprint.


As businesses grow and their storage requirements increase, scalability becomes a critical factor. The HPE P40475-B21 SSD can be seamlessly integrated into existing server and storage configurations, allowing for easy expansion of storage capacity without compromising performance.

In Summary, the HPE P40475-B21 800GB SAS 24Gbps SSD Mixed Use SFF TLC is a versatile and high-performance storage solution designed to meet the demands of modern data centers and enterprise environments. With its impressive specifications, reliability, and energy efficiency, it offers a compelling option for a wide range of applications, from database management to virtualization and content delivery.

By understanding its key features and benefits, as well as its compatibility and maintenance requirements, businesses and IT professionals can make informed decisions when choosing the HPE P40475-B21 SSD as part of their storage infrastructure. Whether you're upgrading existing servers or building a new data center, this SSD has the potential to deliver the performance and reliability you need.

General Information about this HPE P40475-B21
  • Manufacturer: HPE
  • Part Number or SKU# P40475-B21
  • Device Type: Solid State Drive
  • Product Type: SAS 24GBPS
Technical Information for 800GB Solid State Drive
  • Capacity: 800GB
  • Height: 15mm
  • Form Factor: SFF (Small Form Factor)
  • Port: Dual
  • Flash Type: TLC (Triple-Level Cell)
  • Digitally Signed Firmware (ds): Yes
  • Plug Type: Hot Plug
  • Carrier Type: BC (Business Critical)
Performance of 12GBPS SSD
  • Random Reads: Up To 150,000 IOPS (Input/Output Operations Per Second)
  • Random Writes: Up To 125,000 IOPS
  • Sequential Reads: Up To 1,080 MBps (Megabytes Per Second)
  • Sequential Writes: Up To 1,035 MBps
Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

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?

The reason why our warranty does not cover any problem caused by the following conditions:

(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.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.