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Eight green DDR4 RDIMM modules with gold contacts and black chips in a row

OWC

OWC 512GB (8x64GB) DDR4 3200 CL22 2Rx4 288-pin ECC RDIMM HP Apollo 4200 Gen10 Plus

SKU CH-RRWX-0K88Y

512GB DDR4 3200 CL22 ECC registered RDIMM kit of eight 64GB modules for HP Apollo 4200 Gen10 Plus servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 512GB (8 x 64GB)

  • 512GB kit maximises HP Apollo 4200 Gen10 Plus capacity
  • Eight 64GB modules deliver 512GB total memory
  • DDR4 3200 CL22 2Rx4 registered ECC ensures data integrity
  • 2V JEDEC standard voltage keeps power draw low
  • Replaces HP part numbers P43170-B21 P06035-B21 P07650-B21 P25205-B21

OWC 512GB DDR4 3200 ECC RDIMM Kit

This kit provides 512GB of DDR4 3200 registered ECC memory across eight 64GB modules. It is built to JEDEC PC4-25600 CL22 specifications at 1.2V. The modules use a 2Rx4 organisation and 288-pin RDIMM form factor for server and workstation platforms.

Compatibility and Limitations

The kit is validated for the HP Apollo 4200 Gen10 Plus and replaces several HP part numbers including P43170-B21 and P06035-B21. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced ECC memory. Buyers needing non-ECC UDIMMs or a different capacity per module should look at other products.

Build Integration

Registered ECC RDIMMs require a motherboard and CPU that support registered memory and ECC error correction. The eight-module layout fills multiple channels to maximise bandwidth for virtualisation or data-intensive workloads. No heat spreaders are fitted, so adequate chassis airflow is needed to maintain operating temperatures.

How it compares

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

Price $2,826.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.52 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D42R4512K
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Apollo 4200 Gen10 Plus

Other versions of this model

5 more in the same range

Questions about this item

Does my HP Apollo 4200 Gen10 Plus need all eight DIMM slots free to install this 512GB kit?

The kit contains eight 64GB modules and is designed to fill all eight slots in the HP Apollo 4200 Gen10 Plus for a full 512GB configuration.

Can I keep my existing HP P06035-B21 modules and add this kit alongside them?

No, this registered ECC DDR4 kit cannot be mixed with unbuffered or load-reduced memory; all DIMMs must match in type, speed and capacity.

How do I verify the kit is running at DDR4 3200 CL22 after installation?

Check the BIOS or system management console: it should report 3200 MT/s, CAS latency 22, 1.2V and registered ECC operation for all eight modules.

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