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Green rectangular DDR4 DIMM with black chips and gold contacts

SK hynix

SK hynix HMA84GL7MMR4N-TF 32GB DDR4 2133 ECC Registered Quad Rank server RAM

SKU CH-9AQV-89P9B

32 GB DDR4 ECC registered quad-rank DIMM running at 2133 MHz with CL15 latency

  • Total capacity32 GB
  • Rated speedDDR4 2133 (PC4 17060)
  • Product type288-Pin DDR4 SDRAM
  • ECC protection detects and corrects single-bit memory errors
  • Registered signal buffering stabilises heavy server memory loads
  • Quad-rank density packs 32 GB into a single 288-pin module
  • DDR4 2133 MT/s delivers 17 060 MB/s peak bandwidth
  • Low 1.2 V operation reduces power draw per gigabyte

32GB DDR4 ECC Registered Module

This 32GB DDR4 SDRAM module delivers 2133MHz speed with CL15 latency and ECC error correction. The registered quad-rank design targets servers and workstations that require maximum capacity per slot and data integrity for continuous operation.

288-pin DDR4 registered DIMM

The module plugs into a standard DDR4 288-pin slot and operates at 1.2V. Registered signalling reduces electrical load on the memory controller, allowing higher-density configurations. Quad-rank organisation means each DIMM presents four logical ranks, so the platform must support that rank count per channel.

Upgrade from lower-capacity or non-ECC DDR4

Replacing smaller unbuffered modules with this 32GB registered part increases total memory without adding slots, but only where the motherboard and CPU support registered quad-rank DIMMs. Systems limited to unbuffered or dual-rank memory cannot use this module.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $75.99
Cheaper than about 76% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $2.37 per GB
Cheaper than about 92% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17060)

Questions about this item

How does the quad-rank layout limit the number of DIMMs a single memory channel can accept?

Each module presents four ranks, so most server chipsets allow only one quad-rank DIMM per channel before hitting the rank-per-channel ceiling.

What is the power draw per module when the kit runs continuously at its rated 2133 MT/s speed?

The module operates at 1.2 V, matching the standard DDR4 voltage for registered ECC DIMMs at this frequency.

Which motherboard feature must already be present for the ECC and registered functions to operate?

The platform must provide a DDR4 RDIMM slot with ECC support in the chipset and BIOS.

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