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Green 288-pin DDR4 server memory module with black chips and silver heat spreader

Brute Networks

Brute Networks P18444-B21 16GB DDR4 2666 2Rx8 ECC Registered RDIMM

SKU CH-VT97-0AAWT

16 GB DDR4 2666 ECC registered RDIMM running at 1.2 V for HPE-compatible servers

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • 16GB DDR4-2666 capacity for high-density server workloads
  • ECC registered design protects data integrity in critical applications
  • 2V low-voltage operation reduces system power draw
  • 2Rx8 dual-rank layout maximises memory bandwidth efficiency
  • 100% HPE P18444-B21 compatible for drop-in upgrades

HPE Compatible 16GB DDR4-2666 RDIMM

This 16GB registered DIMM is built to match HPE part number P18444-B21 and runs at DDR4-2666 with a 1.20V operating voltage. It uses a 2Rx8 layout and major-brand DRAM chips from Samsung, SK Hynix or Micron. The module is designed for servers that require ECC registered memory in a 288-pin form factor.

Sustained load behaviour with ECC registered design

The registered buffer reduces electrical load on the memory controller, helping stability when all slots are populated under continuous workloads. ECC corrects single-bit errors on the fly, protecting data integrity during long-running compute or virtualisation tasks. Operation at the standard 1.20V keeps power draw predictable across extended periods.

Verify DDR4 RDIMM support and slot population rules

Confirm that your server platform accepts DDR4 registered DIMMs and check the maximum capacity per channel before ordering. Mixing registered and unbuffered modules is not supported, so all installed DIMMs must share the same registered type. Ensure the memory configuration follows the vendor’s population guidelines for 2Rx8 modules.

How it compares

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

Price $125.99
Cheaper than about 60% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $7.87 per GB
Pricier than about 56% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

How much heat does the 1.20V DDR4 module add when running continuously in a server?

The 1.20V DDR4 module operates at a low voltage, reducing power draw and heat output during continuous server operation.

Does my server need a registered DIMM slot and ECC support to use this 288-pin 2Rx8 module?

Yes, the motherboard must provide a 288-pin DDR4 registered DIMM slot with ECC enabled for this 2Rx8 module to function.

Will this PC4-21300 stick run at 2666 MHz alongside older DDR4 modules rated at lower speeds?

The module will down-clock to match the slowest installed DDR4 speed, so it can operate alongside slower DDR4 modules.

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