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 DDR4 RDIMM circuit board with gold contacts and black memory chips

NEMIX RAM

NEMIX RAM 32GB 1x32GB DDR4 2933 PC4-23400 2Rx4 1.2V CL21 288-Pin ECC RDIMM Dell PowerEdge R840 memory upgrade

SKU CH-RFQ5-YS3MG

32 GB DDR4-2933 ECC registered DIMM, CL21 at 1.2 V, validated for Dell PowerEdge R840 servers

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 32 GB capacity expands server memory for demanding workloads
  • DDR4 2933 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design protects data integrity in critical applications
  • 2 V operation reduces power consumption and heat output
  • 288-pin RDIMM form factor fits Dell PowerEdge R840 slots

Dell PowerEdge R840 upgrade

This 32 GB DDR4 module is built for the Dell PowerEdge R840 server. It uses registered ECC RDIMM architecture to maintain data integrity in multi-socket configurations. The single 32 GB stick fits one 288-pin slot and runs at 2933 MT/s with CL21 latency.

Registered ECC with major OEM chips

The module carries ECC and registered buffering to correct single-bit errors and reduce electrical load on the memory controller. Chips come from Samsung, Micron or Hynix depending on supply. No heat spreader is included, so airflow in the server chassis handles cooling.

DDR4 2933 platform limits

DDR4 2933 is the maximum JEDEC speed this module supports; faster DDR4 rates are not guaranteed. Registered DIMMs cannot be used in unbuffered consumer motherboards. Mixing ranks or speeds may force the system to run at a lower common rate.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $268.99
Cheaper than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $8.41 per GB
Typical for this category: the median of 20,941 items is $8.19 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 nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 2933 MHz RDIMM Registered Server Memory
Part numberMR23400-324K1
Total capacity32 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items32 GB (1 × 32 GB) DDR4 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 2Rx4 RDIMM modules need any firmware updates or periodic reseating after installation?

No firmware updates or scheduled reseating are required; the registered ECC design handles error correction in hardware and the module is validated for continuous server operation.

What thermal limit appears first when the 2933 MT/s RDIMMs run at full load in a PowerEdge R840?

The DDR4 chips are rated for standard JEDEC operating temperatures; sustained full-load use stays within that envelope without triggering throttling.

How much power and heat does a single 32 GB 1.2 V CL21 RDIMM add when the server runs 24/7?

At 1.2 V the module draws only a few watts, adding minimal heat that the R840's existing airflow handles without extra cooling.

More in Model-Specific Memory Upgrades

Similar items