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Green 288-pin DDR4 RDIMM module with black chips, no heat spreader

OWC

OWC 64GB DDR4 2933 CL21 2Rx4 ECC Registered RDIMM Apollo 4500/4510 Gen10

SKU CH-DG1W-5JZ26

A 64 GB DDR4 2933 CL21 2Rx4 ECC registered RDIMM for HP Apollo 4500 Gen10 and 4510 Gen10 servers

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

Capacity 64GB

  • 64GB single module expands server capacity
  • ECC registered design protects data integrity in HP Apollo 4500/4510 Gen10
  • DDR4 2933 CL21 at 1.2V balances speed with low power draw
  • 2Rx4 288-pin RDIMM fits qualified slots without mixing buffers
  • Backward compatible with 2133 2400 2666 MHz systems for flexible deployment

64GB DDR4 2933 ECC RDIMM for Apollo 4500/4510

This single 64GB module delivers DDR4 2933 speed with CL21 latency and 1.2V operation. It is an ECC registered RDIMM built for HP Apollo 4500 Gen10 and 4510 Gen10 servers. The 2Rx4 organisation and 288-pin form factor match the platform requirements exactly.

Registered ECC with backward speed support

The registered buffer and ECC circuitry provide error correction and signal integrity for multi-DIMM server configurations. JEDEC compliance and RoHS compliance ensure a warranty-safe upgrade path. Backward compatibility allows operation at 2133, 2400 and 2666 MHz if the system memory controller requires a lower frequency.

Suits Apollo 4500/4510 expansion; not for desktops

This module suits administrators adding capacity to compatible Apollo Gen10 servers or replacing failed DIMMs with a direct HP part-number match. It will not work in standard desktop computers, consumer workstations or any system that requires unbuffered or load-reduced memory. Builders needing non-ECC or unregistered DIMMs should look elsewhere.

How it compares

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

Price $416.99
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 $6.52 per GB
Cheaper than about 60% 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 4500 Gen10
HP Apollo 4510 Gen10

Other versions of this model

5 more in the same range

Questions about this item

Will the 2Rx4 registered DIMM require any firmware updates or slot-specific configuration in the Apollo 4500 Gen10?

The module is a direct replacement for HP part numbers including P19045-K21 and P00930-B21, so it installs without firmware changes or special slot rules.

What throughput ceiling appears first when the 2933 MT/s CL21 kit runs sustained workloads?

The DDR4-2933 interface caps peak bandwidth at the PC4-23400 data rate, which is the first hard limit under continuous load.

How much heat and power does a single 1.2 V 64 GB stick add when the server runs 24/7?

Each module draws 1.2 V at the JEDEC standard voltage and has no heat spreader, so thermal output stays at the baseline for registered DDR4.

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