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 rectangular DDR4 RDIMM module with black chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2933 RDIMM ECC CL21 1.2V 2Rx8 288-pin Dell PowerEdge R840 memory upgrade

SKU CH-KAT0-J6J09

16 GB DDR4 2933 ECC registered RDIMM, CL21 1.2 V 2Rx8 288-pin for Dell PowerEdge R840

  • Capacity16GB
  • SpeedDDR4 2933 (PC4 23400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB capacity expands server memory headroom
  • DDR4 2933 speed matches Dell PowerEdge R840 specifications
  • ECC registered design protects data integrity under load
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

Dell PowerEdge R840 DDR4 RDIMM

This NEMIX RAM module provides 16 GB of DDR4 2933 registered ECC memory for the Dell PowerEdge R840 rack server. It operates at 1.2 V with a CAS latency of CL21 and uses a 2Rx8 organisation on a 288-pin RDIMM form factor. The part is built with major OEM chips from Samsung, Micron or Hynix and carries the supplier part number MR23400-628K1.

IT teams maintaining R840 fleets

Administrators expanding memory in a Dell PowerEdge R840 will find this module validated for that platform. Builders working on non-Dell servers, desktop workstations or consumer motherboards should look elsewhere because the registered ECC design requires a compatible server chipset and memory controller.

Registered ECC DDR4 2933 CL21

The single specification that determines fit is the registered ECC DDR4 2933 CL21 2Rx8 288-pin RDIMM profile at 1.2 V. Only systems that explicitly support this exact combination of speed, latency, rank structure and registered signalling will accept the module.

Highlights

  • 16 GB capacity expands server memory headroom
  • DDR4 2933 speed matches Dell PowerEdge R840 specifications
  • ECC registered design protects data integrity under load
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

Specifications

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR4 2933MHZ RDIMM Registered Server Memory
Part NumberMR23400-628K1
Capacity16GB
SpeedDDR4 2933 (PC4 23400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemDell
CAS LatencyCL21
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx8
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2933MHZ PC4-23400 2Rx8 1.2V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does this RDIMM require a Dell PowerEdge R840 server to function?

This module is built for the Dell PowerEdge R840 and operates as registered ECC DDR4; the server must accept 288-pin DDR4 RDIMMs at 2933 MT/s with 1.20 V.

Can I mix this 16 GB 2Rx8 CL21 stick with existing DDR4 RDIMMs running at a lower speed?

The R840 will down-clock all modules to the slowest installed speed and use the loosest timing, so mixing works but the faster 2933 MT/s rating on this stick will not be used.

How do I verify the module is running at 2933 MT/s with ECC active after installation?

Enter the system BIOS or iDRAC and confirm the memory speed shows 2933 MT/s, the rank reads 2Rx8, and ECC status reports enabled.

Also in this aisle

People compared these

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