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Green rectangular DDR4 RDIMM stick with black chips and gold contacts

SK hynix

SK hynix HMA84GR7JJR4N-VK 32GB 2Rx4 DDR4-2666 ECC RDIMM server RAM

SKU CH-82FJ-E1VK6

A 32 GB DDR4-2666 ECC RDIMM module with 2Rx4 organisation, CL19 latency and 1.2 V operation for server systems

  • ECC protection detects and corrects single-bit memory errors
  • 32 GB capacity in a single RDIMM module
  • DDR4-2666 speed rated at PC4-21300V-R
  • Low 1.2 V voltage reduces server power draw
  • Standard height fits dense 2U and 1U chassis

Single-module server memory

This SK hynix module delivers 32 GB of DDR4-2666 capacity in a standard-height RDIMM form factor. It operates at 1.2 V with a CL19 latency and uses a 2Rx4 rank configuration. The built-in ECC function detects and corrects single-bit errors to protect data integrity in server workloads.

Suited for ECC platforms

This module is designed for systems that require registered ECC memory and support the DDR4-2666 standard. Builders assembling consumer desktops, laptops or workstations without ECC support should look elsewhere, as the registered buffer and error-correction features will not function on those platforms.

32 GB per module

Each stick provides 32 GB of capacity, so total system memory scales with the number of populated slots. Verify the maximum per-slot limit and supported population rules for your specific motherboard before purchase.

How it compares

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

Price $145.99
Cheaper than about 57% of the 6,523 comparable items (median $188.99).

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

Specifications

No published specifications for this item yet.

Questions about this item

How much power does this 1.2 V DDR4-2666 RDIMM draw under sustained server loads?

The module operates at the standard DDR4 voltage of 1.2 V, which keeps power draw low during continuous operation in multi-socket platforms.

Does my motherboard need registered DIMM slots and ECC support to use this 32 GB stick?

Yes — this is a 2Rx4 registered ECC RDIMM, so the board must provide RDIMM slots and have ECC enabled in the firmware.

Will the CL19 timing on this PC4-21300V-R module match older CL19 DDR4 RDIMMs already installed?

Both run at CL19, so the memory controller can apply the same latency settings across the populated channels.

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