We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green 288-pin DDR4 server memory module with black chips and silver contacts

Brute Networks

Brute Networks P18451?B21 HP Compatible 64GB DDR4-2933 4Rx4 Load Reduced server RAM

SKU CH-EMC6-7CXAG

64 GB DDR4-2933 load-reduced ECC module with 4Rx4 organisation and 1.2 V operation for HP-compatible servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4
  • 64 GB capacity expands server memory headroom
  • DDR4-2933 speed delivers 23400 MT/s data rate
  • Load Reduced 4Rx4 design supports high-density configurations
  • 2 V operation reduces power draw per module
  • 100 % HP compatible with major-brand Samsung, SK Hynix or Micron chips

HP Compatible 64GB DDR4-2933 Server Memory

This is a 64GB DDR4-2933 load-reduced DIMM built for HP servers. It operates at 1.20V with ECC and a 4Rx4 rank structure on a 288-pin interface. The module uses major-brand chips and matches HP part number P18451?B21. It is sold new with a lifetime warranty from Brute Networks.

Suits administrators expanding memory

Buyers who need a different capacity, speed, voltage or rank configuration should look elsewhere. Systems that require unbuffered or standard registered DIMMs instead of load-reduced modules cannot use this part. Non-HP platforms or servers not validated for this specific part number are not supported.

The 4Rx4 load-reduced organisation decides fit

This rank and buffering combination determines whether the motherboard memory controller can address the full 64GB capacity. Verify the server qualified-vendor list for P18451?B21 before purchase.

How it compares

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

Price $375.99
Pricier than about 65% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $5.87 per GB
Cheaper than about 65% 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
Brand nameHP
Total capacity64 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

How much heat and power does the 1.20V DDR4-2933 Load Reduced module add when the server runs all day?

At 1.20 volts the 64 GB stick draws less power per gigabyte than standard registered DIMMs, so thermal load stays low even under continuous 2933 MHz operation.

What must the server already provide for this 288-pin 4Rx4 ECC module to work?

A DDR4 slot that accepts 288-pin Load Reduced memory, supports 4Rx4 organisation and ECC, and runs at 2933 MHz (PC4-23400) with 1.20 V supply.

Can I mix this 64 GB 4Rx4 stick with older 1Rx4 or 2Rx4 DDR4 modules in the same HP server?

Mixing ranks is possible only if the platform’s memory controller and BIOS explicitly support mixed-rank populations; otherwise the system may default to the lowest common speed or fail to POST.

More in ECC Server RAM

Similar items