HP 4GB 1Rx8 PC4-2133P-R Kit (726717-B21)

The HPE DDR4 4GB 2133MHz memory module is a 288-pin DIMM designed for HP ProLiant servers and compatible workstation applications. With 4 GB capacity, DDR4 technology and a 2133 MHz clock speed, this module supports ECC and CAS latency 15 to provide stable operation and data integrity. It is engineered to work with HP SmartMemory authentication on ProLiant Gen9 systems to confirm HP qualification and enable extended memory features when supported by the system ROM.

Advantages

This HP Enterprise memory module offers validated ECC support, a standard 1.2 V operating voltage and reliable 2133 MHz DDR4 performance in a 288-pin DIMM form factor. When used in HP ProLiant systems that support HP SmartMemory, the module can be authenticated by the server firmware to ensure it meets HP qualification and testing standards, which helps maintain predictable uptime and system compatibility.

Suitable for

• HP ProLiant Gen9 servers requiring HP-qualified DDR4 memory
• Server and workstation upgrades where ECC and data integrity are required
• Environments running virtualization, databases, or other memory-intensive workloads

Key specifications

• Capacity: 4 GB
• Memory type: DDR4
• Clock speed: 2133 MHz
• Form factor: 288-pin DIMM
• CAS latency: 15
• Voltage: 1.2 V
• Supports ECC: Yes
• Brand: HP Enterprise
• MPN: 726717-B21
• EAN: 887758376607

How to use

Power down the server and follow the manufacturer’s service manual for safe handling and electrostatic discharge (ESD) precautions. Locate the appropriate DIMM slot for the server configuration, align the 288-pin edge connector with the slot, and press firmly until the latches engage. After installing the module, power on the server and check system firmware/ROM to confirm memory is recognized and, if applicable, authenticated as HP SmartMemory.

Recommendations

Use this module in matched pairs or in configurations recommended by your HP ProLiant server documentation to ensure optimal performance and full support for ECC and platform features. For systems expecting HP SmartMemory benefits, verify firmware compatibility and keep system ROM up to date.