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Green rectangular DDR4 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 64GB DDR4 2933 CL21 ECC RDIMM 2Rx4 HP Apollo 4200 6500 Gen10

SKU CH-MQN3-Q2DZT

A 64 GB DDR4 ECC RDIMM running at 2933 MHz CL21 for HP Apollo 4200 and 6500 Gen10 servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB capacity expands server memory for demanding workloads
  • DDR4 2933 CL21 speed delivers high-throughput data processing
  • ECC registered design corrects errors to protect data integrity
  • 2Rx4 288-pin 1.2V module fits HP Apollo 4200 and 6500 Gen10
  • Backward compatible with 2133, 2400 and 2666MHz systems

OWC 64GB DDR4 2933 ECC RDIMM

This is a single 64GB DDR4 2933 ECC registered DIMM built for HP Apollo 4200 Gen10 and 6500 Gen10 servers. It runs at PC4-23400 with CL21 latency and 1.2V power. The 2Rx4 rank configuration and 288-pin form factor match the original HP part numbers listed by the supplier. It is designed to extend the life of existing infrastructure or support new server builds.

For server and workstation upgrades only

This module suits administrators upgrading HP Apollo 4200 Gen10 or 6500 Gen10 systems that require ECC registered memory. It will not work in standard desktop computers or consumer motherboards. Builders needing unbuffered or load-reduced DIMMs should look elsewhere because this registered stick cannot be mixed with those types. It also does not suit systems limited to lower maximum module capacities.

64GB single-module capacity

The 64GB density on one DIMM is the specification that decides fit. If the target server slot supports this density and the registered ECC standard, the upgrade will function. If the platform caps module size lower or requires a different rank structure, this part will not be compatible.

How it compares

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

Price $391.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 64% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Apollo 4200 Gen10
HP Apollo 6500 Gen10

Other versions of this model

5 more in the same range

Questions about this item

Does the 2933 MHz DDR4 speed limit sustained throughput under heavy server workloads?

The module runs at DDR4 2933 (PC4-23400) with CL21 latency. ECC registered design corrects single-bit errors in real time, keeping data integrity stable during continuous operation.

How much heat and power does a 64 GB 1.2 V registered DIMM produce when running 24/7?

Operating at 1.2 V, the 64 GB RDIMM draws minimal power and has no heat spreader, so airflow from the server chassis handles cooling during all-day workloads.

Which HP Apollo servers must I already own for this 288-pin ECC RDIMM to work?

This module is validated for HP Apollo 4200 Gen10 and 6500 Gen10 systems. It replaces HP part numbers P19045-K21, P00930-H21, P14636-001, P06192-001 and others listed.

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