HP 652564-B21 300GB SAS 10K 2.5IN SC ENT HDD

Name: HP 652564-B21 300GB SAS 10K 2.5IN SC ENT HDD
Brand: HP
SKU: 652564-B21

Overview

The HP 652564-B21 is a 300GB SAS hard drive engineered for enterprise server environments where performance, reliability, and serviceability are essential. Spinning at 10,000 RPM and connected via a 6Gb/s SAS interface, this drive delivers the throughput and low-latency response times needed for database operations, virtualization hosts, email servers, and other transaction-heavy workloads. The 2.5-inch Small Form Factor design allows for high-density storage configurations in HP ProLiant server chassis, letting administrators pack more drives into less rack space.

One of the key advantages of this drive is its hot-swap capability using the HP SmartDrive Carrier, which enables technicians to replace failed or aging drives without shutting down the server — a critical feature for environments that demand high uptime. As a genuine HP part (PN: 652564-B21), it is validated for seamless integration with HP server platforms, supported by HP firmware and management tools. While the 300GB capacity is modest by today's standards, it remains a practical choice for boot drives, OS partitions, or workloads where speed matters more than raw capacity, and where the total cost of ownership favors proven SAS spinning media over premium enterprise SSDs.

Key Features

Type: Hard Drive - Hot-Swap

Capacity: 300GB

Interface Type: 6Gb/s SAS

Data Transfer Rate 6G = 6Gb/sec

Spindle Speed: 10000RPM

Specifications

Brand

HP

Model

652564-B21

Capacity

300GB

Interface

SAS 6Gb/s

Spindle Speed

10,000 RPM

Form Factor

2.5-inch SFF

Drive Type

HDD (Hot-Swap)

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Pros & Cons

👍 Pros

10,000 RPM spindle speed delivers faster data access and lower latency than standard 7,200 RPM enterprise drives
Hot-swap capability allows drive replacement without server downtime, critical for always-on enterprise environments
6Gb/s SAS interface provides reliable high-throughput connectivity suited for server and storage array workloads
2.5-inch SFF design maximizes drive density in compatible HP ProLiant server chassis
HP genuine part number ensures tested compatibility and support within HP server ecosystems

👎 Cons

300GB capacity is limited compared to modern drives, requiring more drives to meet larger storage needs
Mechanical spinning-disk technology is slower in random I/O performance compared to enterprise SSDs
Higher power consumption and heat output relative to solid-state alternatives in the same form factor
10K RPM drives produce more vibration and noise than SSDs, which can be a factor in dense rack configurations
SAS interface requires a compatible SAS controller or backplane, limiting use to server environments

Frequently Asked Questions

What servers is the HP 652564-B21 compatible with?

This drive uses the HP SmartDrive Carrier (SC) form factor and is designed for HP ProLiant Gen8 and Gen9 servers that support 2.5-inch SAS hot-swap bays.

What does "hot-swap" mean for this HP SAS drive?

Hot-swap capability means you can remove and replace this drive in a compatible server without powering down the system, minimizing downtime during maintenance or drive replacements.

What is the data transfer rate of this drive?

It supports a 6Gb/s SAS interface, providing fast data throughput suitable for enterprise transaction processing, database hosting, and other I/O-intensive server workloads.

Why choose a 10K RPM SAS drive instead of an SSD?

A 10K RPM SAS drive like the 652564-B21 offers a cost-effective balance of performance and capacity for enterprise environments where the higher price-per-GB of SSDs may not be justified for the workload.

What is the physical form factor of this drive?

It is a 2.5-inch Small Form Factor (SFF) drive, designed to fit high-density server storage bays and maximize the number of drives per server chassis.