HPE 875597-K21 1.6TB Solid State Drive
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875597-K21 HPE PCI-Express 1.6TB 2.5-inch SFF Smart Carrier New

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Part Number#: 875597-K21
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Short Description:
875597-K21 Peripheral Component Interconnect Express (PCI-E) 1.6TB 2.5inch Small Form Factor Digitally Signed Firmware NVMe Hot Pluggable Solid State Drive for Server | 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
Introduction to Solid State Drives

The HPE 875597-K21 is a 1.6TB NVMe solid-state drive (SSD) designed for use in high-performance storage systems. It has a form factor of internal drive and utilizes multi-level cell (MLC) NAND flash memory for high-performance storage. The drive connects to the system through a PCI-Express (PCI-E) x4 interface and provides fast data transfer rates and low latency.

Solid-state drives (SSDs) are a type of data storage device that use NAND-based flash memory to store data. They are faster and more reliable than traditional hard disk drives (HDDs) and have become the preferred storage solution for many types of applications and systems. Compared to HDDs, SSDs have faster read and write speeds, lower latency, and improved durability and reliability, making them ideal for high-performance applications.

SSDs come in a variety of form factors, including internal drives, external drives, and hot-swappable drives. The HPE 875597-K21 is an example of an internal NVMe SSD that provides high-performance storage for demanding applications. Additionally, the use of MLC NAND flash memory provides increased endurance compared to consumer-grade TLC NAND flash memory.

Speed and Performance

875597-K21 is a 1.6TB MLC (Multi-Level Cell) PCI-Express x4 NVMe hot-swap SSD manufactured by HPE, designed for mixed use (read-intensive and write-intensive workloads).

As an NVMe SSD, it utilizes the NVMe protocol to provide fast and efficient access to stored data. The PCI-Express x4 interface provides a high-speed data transfer rate, contributing to the overall performance of the drive. The hot-swap feature allows for easy replacement of the drive without having to power down the system.

The actual speed and performance of the 875597-K21 will depend on a variety of factors, including the specific workload, the operating system and configuration, and the system it is installed in. In general, NVMe SSDs are known for their high sequential read and write speeds, low latency, and high input/output operations per second (IOPS) performance.

Types of Solid State Drives

HPE 875597-K21 1.6TB MLC PCI-E x4 NVMe Hot Swap Mixed Use Internal SSD is a solid-state drive (SSD) manufactured by Hewlett Packard Enterprise (HPE). It uses the PCI Express (PCI-E) interface, NVM Express (NVMe) protocol, and multi-level cell (MLC) NAND flash memory.

There are several different types of solid-state drives (SSDs), including:

  1. SATA SSDs: SATA is a legacy interface that was designed for hard disk drives (HDDs). SATA SSDs are compatible with most computer systems and are widely available in consumer-grade and enterprise-grade variants.
  2. PCI-E SSDs: PCI-E SSDs are much faster than SATA SSDs, due to the increased bandwidth of the PCI-E interface. They are typically used in high-performance computing systems and enterprise-grade storage systems.
  3. NVMe SSDs: NVMe is a protocol designed specifically for SSDs that takes advantage of the increased speed of PCI-E interfaces. NVMe SSDs are designed for high-performance applications and are typically faster than SATA and PCI-E SSDs.
  4. MLC SSDs: MLC (multi-level cell) SSDs use a higher density NAND flash memory, which allows for higher storage capacity. They are typically used in consumer-grade and enterprise-grade applications.
  5. TLC SSDs: TLC (triple-level cell) SSDs use an even higher density NAND flash memory, which allows for even larger storage capacities. TLC SSDs are typically less expensive than MLC SSDs, but have lower write endurance and lower performance.
  6. SLC SSDs: SLC (single-level cell) SSDs use the lowest density NAND flash memory, which provides the highest write endurance and performance. SLC SSDs are typically used in enterprise-grade applications where high reliability and performance are required.
Key information of HPE 875597-K21
  • Brand Name: HPE
  • Model Number or SKU# 875597-K21
  • Device Type: Solid State Drive - Hot-Swap
  • Capacity: 1.6 TB
  • Form Factor: 2.5-inch SFF
  • Interface: NVMe U.2 PCIe
  • NAND Flash Memory Type: Multi-Level Cell (MLC)
  • Plug Type: Hot Pluggable
  • Carrier Type: Smart Carrier NVMe (SCN)
  • Workload Type: Mixed Use
  • Features: Digitally Signed Firmware (DS), x4 Lanes
  • Bundled with: HPE Smart Carrier NVMe (SCN)
  • Platform Supported: HPE ProLiant Rack/Tower/BladeSystem Servers/Synergy
  • Height: 7 mm
Performance of 1.6TB NVMe SSD
  • Lifetime Writes: 9900
  • Endurance DWPD (Drive Writes Per Day): 3.0
  • Drive Transfer Rate: PCIe NVMe (external)
  • MAX Seq. Reads Throughput (MiB/s): 2400
  • MAX Seq. Writes Throughput (MiB/s): 840
  • Random Read Average Latency uSec (4KiB,Q1): 100
  • Random Write Average Latency uSec (4KiB,Q1): 32
  • Random Read IOPS (4KiB, Q=16): 140000
  • Random Write IOPS (4KiB, Q=16): 40000
  • MAX Random Read IOPS (4KiB): 245000@Q64
  • MAX Random Write IOPS (4KiB): 40000@Q16
  • 4KiB Random 70% Read / 30% Write, Queue 32 Performance (IOPS) VI-1: 95000
  • 4KiB Random 50% Read / 50% Write, Queue 32 Performance (IOPS) VI-1: 70000
  • Expansion and Connectivity
  • Interfaces: 1 x PCIe NVMe
  • Compatible Bay: 2.5" SFF
Power Consumption
  • Idle Time: 3.22 Watt
  • Random Read: 7.58 Watt
  • Random Write: 11.58 Watt
  • Sequential Read: 7.01 Watt
  • Sequential Write: 7.79 Watt
  • Random Read/Write: 7.81 Watt
Dimensions and Weight
  • Height: 11.80 inch
  • Width: 7.90 inch
  • Depth: 5.90 inch
  • Weight: 1.35 lbs
Compatibility of 1.6TB Solid State Drive
  • HPE ProLiant Generation9 Generation10 Servers

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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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.

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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).

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