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Two green DDR4 DIMMs with black heat spreaders

Black Diamond Memory

Black Diamond Memory BD32GX22666MQR29 64GB (2 x 32GB) DDR4 2666 ECC Registered server RAM

SKU CH-C5FQ-WH04P MPN BD32GX22666MQR29

64 GB dual-module DDR4 2666 ECC registered memory kit for server workloads

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • Buffer typeRegistered
  • Memory rank2Rx4
  • Product type288-Pin DDR4 SDRAM
  • Key featuresWith decades of experience specializing in memory and server

Capacity 64GB (2 x 32GB)

Rank 2Rx4

  • 64 GB total capacity from two 32 GB modules
  • DDR4 2666 speed rated at PC4 21300
  • ECC registered design detects and corrects data errors
  • 288-pin DIMM form factor fits standard server slots
  • Dual-rank 2Rx4 organisation increases memory density per channel

Registered ECC DDR4 for servers

This 64 GB kit delivers two 32 GB DDR4 2666 modules built with registered ECC technology. It targets administrators who need error-correcting memory for enterprise servers and workstations that require registered signal buffering. The 2Rx4 organisation suits platforms qualified for this density and rank configuration.

Thermals noise and power in normal use

Standard DDR4 voltage keeps power draw within typical registered DIMM limits during sustained workloads. Passive operation produces no audible noise, and the modules rely on chassis airflow for cooling without additional fan requirements. Registered buffering helps maintain signal integrity under continuous load.

What the bundle changes for the buyer

The matched pair enables dual-channel population on compatible boards without mixing revision codes. Manufacturer validation across 200000 configurations reduces qualification time when deploying into qualified server platforms. No extra software or accessories are included beyond the two memory modules.

How it compares

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

Price $483.99
Pricier than about 70% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $7.56 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

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Specifications

Product
Brand nameBlack Diamond Memory
Model nameBD32GX22666MQR29
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Size & build
Shipping weight0.18 kg
Package size178 × 51 × 13 mm

Other versions of this model

5 more in the same range

Questions about this item

How do I install these 288-pin DDR4 modules and which step do people get wrong?

Align the single notch on each 288-pin DDR4 stick with the slot key, press straight down until both retention clips click, and populate the channels your motherboard manual specifies — the common mistake is seating only one side.

What maintenance or replacement will this 64GB 2Rx4 kit need later?

No scheduled maintenance is required; replacement is only needed if a module fails or a platform upgrade demands a different speed or capacity.

What limit appears first under sustained load with DDR4 2666 registered ECC?

The 2666 MT/s data rate and registered buffer latency set the throughput ceiling before thermal or power limits become binding.

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