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Eight green DDR4 LRDIMM modules with gold contacts and black chips, no heat spreaders

OWC

OWC 512GB (8x64GB) DDR4 2400MHz CL17 ECC LRDIMM 1.2V 288-pin Server RAM

SKU CH-49GR-YT7TR

Eight 64 GB DDR4 2400 MHz CL17 ECC load-reduced DIMMs totalling 512 GB for servers and workstations

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 512GB (8 x 64GB)

  • 512 GB total capacity from eight 64 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2400 MHz CL17 speed with 1.2 V efficiency
  • 288-pin LRDIMM form factor fits server and workstation slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Capacity and compatibility

This kit provides 512GB of DDR4 ECC LRDIMM memory across eight 64GB modules rated at 2400MHz CL17. It is built for servers, workstations and NAS systems that require load-reduced registered DIMMs and will not function in standard desktop computers.

Sustained operation

Load-reduced buffering reduces electrical load on the memory controller, allowing all eight modules to run at the rated 2400MHz speed under continuous multi-threaded workloads. ECC protection corrects single-bit errors in real time, maintaining data integrity during extended uptime.

Upgrade path

The kit replaces lower-capacity DDR4 LRDIMM sets or expands populations that currently run at 2133MHz, with backward compatibility at that speed. The jump is worthwhile when virtualisation density, in-memory databases or large dataset caching demand the full 512GB configuration.

How it compares

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

Price $3,368.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $6.58 per GB
Cheaper than about 58% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2L4D44R4512K
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

How much heat and power does the 1.2V LRDIMM draw when the server runs continuously?

Each 64GB module operates at 1.2V, the standard DDR4 voltage, so the 512GB kit adds minimal heat and power load during all-day server workloads.

What motherboard features are required for these 4Rx4 ECC LRDIMMs to function?

The board must provide 288-pin DDR4 slots that support ECC Load Reduced memory and 4Rx4 organisation; standard desktop boards without LRDIMM support will not work.

Will the 2400MHz CL17 modules run stably in a system that currently uses 2133MHz DDR4?

Yes, the kit is backward compatible with 2133MHz systems and will operate at the lower speed while retaining ECC Load Reduced functionality.

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