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Green rectangular DDR4 RDIMM module 133mm long with gold edge connector and black chips

SK hynix

SK hynix HMA84GR7AFR4N-UH 32GB DDR4 RDIMM ECC Registered 2400MHz 2rx4 1.2v 288-pin

SKU CH-5DHB-JJM9N

A 32 GB DDR4 RDIMM module with ECC registered operation at 2400 MHz and 1.2 V

  • 32 GB capacity supports large server workloads
  • ECC registered design detects and corrects data errors
  • 2400 MHz DDR4 speed matches PC4-19200 bus rating
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

32GB DDR4 RDIMM for servers

This 32GB DDR4 RDIMM module operates at 2400MHz with a PC4-19200 bus speed. It uses ECC Registered technology and a 2rx4 rank configuration. The stick runs at 1.2v and fits a standard 288-pin slot. It is built for server and workstation platforms that require registered memory.

Replaces non-ECC or unregistered DIMMs

The jump is worth it when your motherboard demands registered ECC modules for stability. Systems that currently run unbuffered memory cannot use this RDIMM. Upgrading from a lower-capacity registered stick adds 32GB in a single slot. The 2400MHz speed matches the DDR4-2400 standard used in many server boards.

Check motherboard RDIMM support and voltage

Verify that your board accepts DDR4 RDIMM modules and runs at 1.2v. Confirm the memory controller supports 2rx4 rank organisation. Ensure the 133mm length and 30mm height fit your chassis and CPU cooler clearance. This module is not compatible with desktop consumer boards that require unbuffered non-ECC DIMMs.

Highlights

  • 32 GB capacity supports large server workloads
  • ECC registered design detects and corrects data errors
  • 2400 MHz DDR4 speed matches PC4-19200 bus rating
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

Specifications

No published specifications for this item yet.

Questions about this item

Does the 133mm length and 30mm height fit my server DIMM slot?

The module measures 133mm long and 30mm high, matching the standard RDIMM form factor for 288-pin DDR4 server slots.

Which way does the key notch go when seating the 288-pin RDIMM?

Align the off-centre notch on the gold edge with the slot key, press straight down until both retention clips click — do not angle the module.

Will the 1.2v DDR4 chips need active cooling later?

Standard 1.2v DDR4 RDIMMs run passively; only add airflow if your chassis thermal sensors show sustained temperatures above specification.

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