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 RDIMM with black chips and silver heat spreader

Brute Networks

Brute Networks 16GB DDR4 2666 CL15 ECC Registered 2Rx8 1.2V server RAM

SKU CH-MEFK-NQBD9

16GB DDR4 2666 CL15 ECC registered RDIMM with 2Rx8 organisation for server upgrades

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • 16 GB DDR4-2666 CL15 boosts server throughput
  • ECC registered 2Rx8 protects data integrity under load
  • 2 V operation lowers power draw per module
  • HP 835955-S21 compatible for drop-in upgrades
  • Major-brand Samsung, SK Hynix or Micron chips ensure OEM-grade reliability

16 GB DDR4-2666 ECC RDIMM for servers

This 16 GB registered DDR4 module runs at 2666 MT/s with CL15 latency and 1.2 V operation. It uses a 2Rx8 organisation and 288-pin form factor for compatible server platforms. The ECC registered design helps maintain data integrity in multi-socket systems.

Practical limits of DDR4-2666 registered ECC

Registered modules add a clock cycle of buffering, so maximum usable speed depends on the platform memory controller and populated slot count. Filling every channel at this frequency may require the BIOS to drop to a lower data rate. Total capacity is capped by the number of approved slots per CPU.

Upgrades from lower-capacity or non-ECC DDR4

Replacing smaller RDIMMs with this 16 GB stick increases the virtual-machine density and reduces swapping on memory-constrained hosts. The jump is worthwhile when the workload exceeds the current installed capacity and the motherboard qualifies this part number. Builders needing unbuffered UDIMMs or higher frequencies cannot use this module.

Highlights

  • 16 GB DDR4-2666 CL15 boosts server throughput
  • ECC registered 2Rx8 protects data integrity under load
  • 2 V operation lowers power draw per module
  • HP 835955-S21 compatible for drop-in upgrades
  • Major-brand Samsung, SK Hynix or Micron chips ensure OEM-grade reliability

Specifications

BrandHP
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset

Questions about this item

How do I decide between the 16GB 2666 CL15 module and other capacities?

Choose the 16GB 2Rx8 RDIMM when your server has free 288-pin DDR4 slots and the workload needs more ECC registered capacity; match speed and rank to existing modules for best stability.

What does the 2666 MT/s rating mean once the module is installed?

The PC4-21300 DDR4-2666 module transfers data at up to 2666 million transfers per second; actual throughput depends on the platform's memory controller and any down-clocking by the BIOS.

Does the DDR4 288-pin registered interface limit how many modules I can populate per channel?

The registered 2Rx8 design reduces electrical load on the memory bus, allowing higher per-channel DIMM counts than unbuffered modules, but the exact limit is set by the server's memory controller.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.