HPE 875589-S21 960GB Solid State Drive
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HPE 875589-S21 960GB MLC PCI-E x4 NVMe Read Intensive New

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Part Number#: 875589-S21
List Price was: $2100.00
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Short Description:
HPE 875589-S21 960GB MLC PCI-E x4 NVMe Read Intensive 2.5 Inch Internal Solid State Drive | Brand New 3 Years Warranty
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Overview of the HPE 875589-S21 SSD

HPE 875589-S21 is a type of Solid State Drive (SSD) that is designed for internal use. This particular model is equipped with 960GB of storage capacity, and is classified as a Read Intensive drive. Additionally, it is built with Multi-Level Cell (MLC) technology, and uses a PCI-E x4 NVMe interface to achieve faster data transfer rates.

Solid State Drive (SSD) Basics

To understand what a Solid State Drive (SSD) is, it's helpful to know how traditional hard disk drives (HDDs) work. In a typical HDD, data is stored on spinning magnetic disks, with a read/write head accessing the data as needed. However, this method of storage has some limitations, including slow data transfer rates and mechanical failures.

In contrast, SSDs use NAND-based flash memory to store data. This allows for much faster data transfer rates, as well as increased durability and reliability. SSDs also have no moving parts, which makes them less susceptible to mechanical failure.

Read Intensive vs. Write Intensive

One important factor to consider when choosing an SSD is the type of workload it will be used for. Read Intensive drives are designed to handle workloads where the majority of operations involve reading data. This might include tasks like booting up a computer, opening applications, or loading files.

Write Intensive drives, on the other hand, are designed for workloads that involve frequent writes to the drive. This might include tasks like video editing, database management, or virtual machine hosting. Write Intensive drives typically have higher endurance ratings than Read Intensive drives, since they are designed to handle more frequent writes.

Multi-Level Cell (MLC) Technology

One of the key features of the HPE 875589-S21 is its use of Multi-Level Cell (MLC) technology. MLC is a type of NAND-based flash memory that allows for multiple bits of data to be stored in each memory cell. This allows for higher storage density and lower cost per gigabyte compared to other types of flash memory.

However, MLC has some trade-offs when it comes to endurance and reliability. Since multiple bits are being stored in each cell, there is a greater chance for errors to occur. Additionally, MLC has a lower endurance rating than other types of flash memory, meaning it may wear out faster with frequent use.

PCI-E x4 NVMe Interface

The HPE 875589-S21 uses a PCI-E x4 NVMe interface to connect to a computer's motherboard. NVMe (Non-Volatile Memory Express) is a protocol that allows for faster data transfer rates between the SSD and the rest of the system. By using a PCI-E x4 interface, the HPE 875589-S21 is able to achieve even faster data transfer rates than other types of SSDs.

Internal Use

It's important to note that the HPE 875589-S21 is designed for internal use only. This means it is not intended to be used as an external hard drive, or as a replacement for a USB flash drive. Instead, it is meant to be installed inside a computer or server, where it can be used as the primary storage device.

Overall,the HPE 875589-S21 is a Read Intensive Solid State Drive with 960GB of storage capacity. It uses Multi-Level Cell (MLC) technology to achieve higher storage density, and a PCI-E x4 NVMe interface for faster data transfer rates. It is designed for internal use only, and is ideal for workloads that involve frequent reading of data. However, it may not be the best choice for workloads that involve frequent writes to the drive.

General Information for this HPE 875589-S21

  • Manufacturer: HPE
  • Model Number or SKU# 875589-S21
  • Product Type: Solid State Drive (SSD)
  • Interface Type: NVMe
  • Option Part# 875589-B21
  • Spare Part# 875872-001
  • Assembly Part# 869252-002
  • Model# VK000960KWDUF

Technical Information

  • Capacity: 960GB
  • NAND flash type: Multi-level cell (MLC)
  • Form factor: 2.5-inch
  • Endurance: Read-intensive
  • Maximum read throughput: 1,965 MB/s
  • Maximum write throughput: 1,285 MB/s
  • Random read IOPS (input/output operations per second): up to 400,000
  • Random write IOPS: up to 45,000
  • Average latency: 85 microseconds
  • Power consumption: 10.36 watts (active), 4.33 watts (idle)
  • MTBF (mean time between failures): 2 million hours


  • Proliant BL Series: BL460c (G9 G10) BL660c (G9)
  • Proliant DL Series: DL360 (G9 G10)
  • Proliant DL Series: DL380 (G9 G10) DL385 (G10)
  • Proliant DL Series: DL560 (G9 G10) DL580 (G9 G10)
  • Proliant ML Series: ML350 (G9 G10

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.

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

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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.