P69727-B21 - HPE 32GB 2Rx8 PC5-6400B-R Smart Memory Kit

HPE P69727-B21 — 32GB (1×32GB) DDR5-6400 Dual Rank x8 Registered SmartMemory

What it is

P69727-B21 is an HPE 32GB DDR5-6400 Registered SmartMemory kit designed for compatible HPE ProLiant servers.

It consists of 1 × 32GB DDR5 RDIMM, operating at up to 6400 MT/s, with a dual-rank x8 organization and EC8 registered memory architecture for enterprise server workloads.

Why buyers pick P69727-B21 (plain English)

Fast DDR5-6400 memory: Provides up to 6400 MT/s memory speed on compatible HPE server platforms, delivering substantially more bandwidth than earlier DDR4 generations.

32GB per DIMM: A useful capacity for expanding servers without consuming too many memory slots.

Dual-rank x8 design: Provides an enterprise-oriented balance of performance, density, and reliability.

HPE SmartMemory: HPE-qualified memory is tested and validated specifically for supported ProLiant platforms, helping ensure correct operation and performance.

ECC registered memory: Built for servers where memory reliability and error correction are important.

60-second spec box (P69727-B21)

Capacity

• 32GB
• 1 × 32GB DIMM

Memory type

• DDR5 SDRAM
• Registered DIMM (RDIMM)
• HPE SmartMemory
• ECC server memory

Speed

• 6400 MT/s
• Also referred to as DDR5-6400
• Actual operating speed depends on the server, processor, and overall memory configuration

Rank / organization

• Dual Rank
• x8
• EC8

CAS latency

• CAS 52-52-52
• Timing may operate differently depending on platform-supported memory speed

Form factor

• Standard server RDIMM
• Designed for compatible HPE ProLiant memory slots

Typical workloads

• Virtualization
• Databases
• General enterprise applications
• Cloud infrastructure
• High-density server workloads
• Memory-intensive applications

Compatibility

• Designed for compatible HPE ProLiant servers
• Particularly suited to newer platforms supporting DDR5-6400 SmartMemory
• Server and processor configuration determines maximum supported speed

Where it fits (and when to choose something else)

Perfect for:

• Expanding HPE ProLiant server memory
• Virtualization hosts
• Database servers
• Application servers
• Cloud and infrastructure workloads
• Systems requiring DDR5-6400 RDIMMs

Choose something else if:

• You need more capacity per DIMM → consider a 64GB, 96GB, 128GB, or larger DDR5 module
• Your server only supports DDR5-4800 or DDR5-5600 → use the appropriate HPE memory generation
• Your server uses DDR4 → this module is not compatible
• You require 3DS or higher-density memory → choose the appropriate HPE 3DS RDIMM

TL;DR

P69727-B21 is an HPE 32GB (1×32GB) DDR5-6400 Registered SmartMemory module with a dual-rank x8 design, EC8 architecture, and CAS 52-52-52 timing — built for compatible HPE ProLiant servers requiring fast, enterprise-grade DDR5 memory.