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Two green DDR4 ECC registered DIMMs with gold contacts

OWC

OWC 128GB (2x64GB) DDR4 2933 ECC RDIMM CL21 1.2V 2Rx4 HP Apollo 4200 6500 Gen10

SKU CH-28GE-TTPBJ

128 GB DDR4 2933 ECC registered RDIMM kit with two 64 GB modules at CL21 and 1.2 V for HP Apollo 4200 and 6500 Gen10 servers

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB (2 x 64GB)

  • ECC registered design protects data integrity in servers
  • 128 GB kit (2 × 64 GB) expands Apollo 4200 or 6500 Gen10 capacity
  • DDR4 2933 CL21 at 1.2 V matches factory specifications
  • 288-pin RDIMM form factor fits approved HP server slots
  • Backward compatible with 2133, 2400 and 2666 MHz platforms

OWC 128GB DDR4 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR4 2933 ECC Registered DIMMs built for HP Apollo 4200 Gen10 and 6500 Gen10 servers. It targets administrators who need to expand memory capacity in those specific platforms. The modules are not compatible with standard desktop computers or unbuffered memory configurations.

Straightforward Server Installation

Each 288-pin RDIMM seats in the Apollo DIMM slots like any registered module; no special tools are required. The most common issue is mixing these registered DIMMs with unbuffered or load-reduced memory, which the platform does not support. Verify that all populated slots use identical registered ECC modules before powering on.

128GB Registered Capacity for Apollo Gen10

The dual-rank 2Rx4 organisation delivers 128GB total at 1.2V, running at 2933MT/s with CL21 latency and falling back to 2666, 2400 or 2133MT/s when the system requires it. This capacity handles large virtualisation workloads and in-memory databases; it reaches its limit when the chassis DIMM slots are fully populated or the workload demands memory speeds beyond the DDR4 2933 specification.

Highlights

  • ECC registered design protects data integrity in servers
  • 128 GB kit (2 × 64 GB) expands Apollo 4200 or 6500 Gen10 capacity
  • DDR4 2933 CL21 at 1.2 V matches factory specifications
  • 288-pin RDIMM form factor fits approved HP server slots
  • Backward compatible with 2133, 2400 and 2666 MHz platforms

Specifications

BrandOWC
Part Number2R9D42R4128P
Capacity128GB (2 x 64GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP Apollo 4200 Gen10
HP Apollo 6500 Gen10

Other versions of this model

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Questions about this item

How can I confirm the 128GB kit is running at DDR4 2933 with ECC registered operation after installation?

Check the BIOS memory summary or run a tool like dmidecode to verify each 64GB module shows 2933 MT/s, CL21, 1.2V, 2Rx4 and ECC registered status.

What exactly ships in the box and what must I source separately?

The kit contains two 64GB DDR4 2933 PC4-23400 CL21 2Rx4 288-pin ECC registered RDIMMs; no heat spreaders, cables or tools are included.

Which version should I choose for an HP Apollo 4200 Gen10 or 6500 Gen10 server?

This 128GB 2R9D42R4128P kit replaces HP part numbers including P19045-K21, P00930-B21 and P03053-1A1 for both Gen10 models.

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