835804-B21 HPE 128GB 2666 persistent memory kit

The 835804-B21 HPE 128GB  is a high-capacity 128GB (1x128GB) DDR-T Persistent Memory module engineered for enterprise workloads on HPE ProLiant Gen10 servers. Built on Intel Optane DC Persistent Memory technology, this module combines near-DRAM performance with data persistence, enabling faster application restart times, reduced storage latency, and improved total cost of ownership for memory-intensive environments.

Designed and validated by Hewlett‑Packard Enterprise, the HPE 835804-B21 delivers reliable, system-specific performance for databases, virtualization, analytics, and in-memory computing use cases where capacity and persistence are critical.

Key Benefits

• Persistent Memory Advantage: Retains data across power cycles, improving recovery times and resiliency.

• High Performance: Operates at 2666 MHz (PC4-21300) to support demanding workloads.

• Enterprise Reliability: Registered DIMM with integrated heatsink for thermal stability in data centers.

• Large Capacity per DIMM: 128GB enables higher memory footprints with fewer slots.

• Optimized for Gen10: Fully validated for HPE ProLiant Gen10 platforms.

Product Overview

The HPE 835804-B21 uses DDR-T technology and a standard 288-pin LRDIMM form factor, making it compatible with supported ProLiant Gen10 servers that accept DDR-T persistent memory. Leveraging Intel Optane DC Persistent Memory (3D XPoint), it bridges the gap between DRAM and storage—ideal for applications that benefit from fast, byte-addressable, persistent data access.

Technical Specifications

General

• Brand: HPE

• Option Part Number: 835804-B21

• Spare Part Number: 844071-001

• Assembly Number: P12109-001

• Device Type: DCPMM (Data Center Persistent Memory Module)

• Capacity: 128GB

• Upgrade Type: System-specific

Memory

• Memory Type: DCPMM

• Technology: DDR-T

• Form Factor: 288-pin DIMM (LRDIMM layout)

• Speed: 2666 MHz (PC4-21300)

• Voltage: 1.2V

• Features: Heatsink, 3D XPoint Technology, Persistent Memory

Platform Compatibility

The HPE 835804-B21 is designed for a wide range of HPE ProLiant Gen10 and HPE Apollo / XL Gen10 systems, including but not limited to:

• HPE Apollo 4200 Gen10 (Cohesity DataPlatform configurations)

• HPE Nimble Storage dHCI solutions with ProLiant DL360/DL380 Gen10

• HPE ProLiant DL Series: DL360 Gen10, DL380 Gen10, DL388 Gen10, DL560 Gen10 (including performance, SMB, SAP HANA, NVMe, and Cohesity variants)

• HPE ProLiant XL Series: XL170r Gen10, XL190r Gen10 (including Ezmeral Container Platform variants)

Compatibility depends on server configuration, BIOS/firmware level, and population rules. Always verify before deployment.

Ideal Use Cases

• In-memory databases and analytics

• Virtualization and container platforms

• SAP HANA and enterprise ERP workloads

• High-performance computing and data platforms

• Fast restart and low-latency applications

Why Choose HPE 835804-B21?

Selecting genuine HPE persistent memory ensures platform validation, firmware compatibility, and enterprise-grade reliability. With Intel Optane DC Persistent Memory at its core, the HPE 835804-B21 enables scalable memory architectures that outperform traditional DRAM-only designs for data-intensive workloads