HP

HP 691864-B21 200GB Internal Solid State Drive

HP 200GB enterprise SATA SSD delivers reliable mainstream endurance for server and data center workloads.

$100.00*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The HP 691864-B21 is a 200GB enterprise-class solid state drive built for HP ProLiant server environments. Using a 6Gb/s SATA interface in the standard 2.5-inch form factor, it slots directly into compatible HP server drive bays as a hot-plug SmartDrive, requiring no additional adapters or cabling changes. Its mainstream endurance rating makes it well-suited for operating system boot drives, virtualization host caching, and read-heavy application workloads where reliability and consistent latency matter more than raw capacity.

Backed by a 3-year Enterprise Mainstream warranty, this SSD is designed to meet the uptime and durability expectations of data center operations. It eliminates the mechanical failure risk inherent to traditional hard drives while consuming less power and generating less heat. While 200GB is modest by modern standards, it remains a practical choice for dedicated boot volumes, VDI infrastructure, or tiered storage architectures where a small, fast SSD accelerates the most frequently accessed data. Organizations with heavier write demands or larger capacity needs should consider higher-endurance or larger-capacity alternatives within the HP enterprise SSD lineup.

Key Features

Accelerate Workload Performance with High Performing HP Solid State Drives

Delivers the High Reliability You Can Count On In Your Data Center

Increases the Efficiency of Your Server

Provides Simplicity and Lower Total Cost of Ownership

Specifications

Capacity
200 GB
Interface
6G SATA
Form Factor
2.5-inch
Endurance
Mainstream Endurance
Warranty
3-Year Enterprise Mainstream

Pros & Cons

👍 Pros

  • Enterprise-grade reliability with a 3-year mainstream endurance warranty
  • 2.5-inch SATA form factor fits standard server drive bays without adapters
  • Significantly faster than traditional spinning hard drives for server boot and application loads
  • HP SmartDrive carrier simplifies hot-plug installation in compatible ProLiant servers
  • Lower power consumption and no moving parts reduce heat and failure risk compared to HDDs

👎 Cons

  • 200GB capacity is very limited for data-intensive applications and large databases
  • 6Gb/s SATA interface is slower than SAS or NVMe alternatives available in modern servers
  • Mainstream endurance rating is not suitable for write-intensive workloads like heavy logging or transaction processing
  • Older generation drive that may not match the performance of current enterprise SSDs
  • Higher cost per gigabyte compared to consumer-grade SSDs of similar capacity

Frequently Asked Questions

It uses a 6Gb/s SATA interface in a standard 2.5-inch form factor, making it compatible with most server drive bays that accept SAS/SATA drives.
It is rated for mainstream endurance, which means it is best suited for mixed and read-intensive server workloads rather than sustained heavy write operations.
Yes, it includes a 3-year Enterprise Mainstream warranty from HP, covering it for use in supported server environments.
The B21 part number indicates it is an HP SmartDrive carrier kit, designed for hot-plug installation in compatible HP ProLiant server drive bays.
It has a 200GB capacity, which is appropriate for operating system boot drives, caching tiers, or smaller database workloads in enterprise environments.