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Two green DDR4 RDIMM modules with gold contacts and black chips

OWC

OWC 128GB (2x64GB) DDR4 3200 CL22 ECC Registered RDIMM

SKU CH-WAJ9-0CH1A

128 GB DDR4 ECC registered kit in two 64 GB modules at 3200 MT/s CL22 for HP ProLiant DL325 Gen10 Plus v2, DL345, DL360, DL365 and DL380 Gen10 Plus servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 128GB (2 x 64GB)

  • 128 GB capacity across two 64 GB modules
  • DDR4 3200 speed with CL22 latency for server workloads
  • ECC registered design protects data integrity in critical systems
  • 2 V operation reduces power draw in dense configurations
  • Validated for HP ProLiant DL325 345 360 365 380 Gen10 Plus platforms

Capacity and Compatibility

This 128 GB kit contains two 64 GB DDR4 3200 CL22 registered ECC modules built for HP ProLiant DL325 Gen10 Plus v2, DL345 Gen10 Plus, DL360 Gen10 Plus, DL365 Gen10 Plus and DL380 Gen10 Plus servers. It replaces HP part numbers P43170-B21, P06035-B21, P07650-B21 and P25205-B21.

Build Requirements

Each module is a 288-pin 2Rx4 RDIMM operating at 1.2 V and must be installed in matching pairs within the supported ProLiant platforms. The memory cannot be mixed with unbuffered or load-reduced DIMMs and will not function in standard desktop motherboards.

Sustained Operation

Registered ECC design corrects single-bit errors and reduces electrical load on the server memory controller during continuous workloads. JEDEC-compliant construction and 1.2 V operation help maintain stability across extended uptime in multi-socket configurations.

How it compares

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

Price $787.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.16 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 number3R2D42R4128P
Total capacity128 GB (2 × 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 ProLiant DL325 Gen10 Plus v2
HP ProLiant DL345 Gen10 Plus
HP ProLiant DL360 Gen10 Plus
HP ProLiant DL365 Gen10 Plus
HP ProLiant DL380 Gen10 Plus

Other versions of this model

5 more in the same range

Questions about this item

At what point does the CL22 latency become the bottleneck under sustained load?

The CL22 timing is fixed by the module design; sustained throughput is limited by the DDR4 3200 bus and the server memory controller, not by the CAS figure alone.

What noise, heat or power impact should I expect from the 1.2 V registered DIMMs running continuously?

Registered DDR4 at 1.2 V draws minimal power and produces negligible heat; the modules have no heat spreader and no moving parts, so they add no audible noise.

Which server models must I already own for this 288-pin ECC RDIMM kit to work?

The kit is validated for HP ProLiant DL325 Gen10 Plus v2, DL345 Gen10 Plus, DL360 Gen10 Plus, DL365 Gen10 Plus and DL380 Gen10 Plus.

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