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Two green DDR4 DIMMs with gold contacts, no heat spreaders

OWC

OWC 128GB (2x64GB) DDR4 3200 CL22 2Rx4 ECC Registered DIMM Kit for HP SimpliVity 380 Gen10

SKU CH-8TJ1-TV233

A 128 GB DDR4 ECC registered DIMM kit with two 64 GB modules rated at 3200 MT/s CL22 for HP SimpliVity 380 Gen10 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 total capacity from two 64 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • CL22 CAS latency at 1.2 V operating voltage
  • ECC registered 2Rx4 design for server error correction
  • Validated for HP SimpliVity 380 Gen10 systems

HP SimpliVity 380 Gen10 upgrade

This 128GB kit supplies two 64GB DDR4 3200 CL22 ECC registered DIMMs built for the HP SimpliVity 380 Gen10 server. Each module runs at 1.2V using a 288-pin 2Rx4 layout and meets JEDEC PC4-25600 timing. The registered design with error correction targets virtualisation hosts and hyper-converged workloads that demand data integrity over raw latency.

Replaces HP P43170-B21 and P06035-B21

The kit replaces original HP part numbers P43170-B21 P06035-B21 P06035-H21 P07650-B21 P07650-H21 P07650-K21 P25205-B21 with equivalent capacity and speed. The jump is worth it when expanding a cluster node beyond its factory DIMM count or when consolidating smaller modules to free slots for future growth. Mixing with unbuffered or load-reduced ECC memory is not supported by the platform.

128GB headroom for dense VMs

Two 64GB ranks deliver 128GB total capacity, letting a single node host dozens of memory-heavy virtual machines or large in-memory databases. The 3200 MT/s rate and CL22 latency keep throughput steady under sustained load. Headroom runs out when workloads exceed the server's maximum DIMM slots or when applications need load-reduced DIMMs for higher per-slot density.

How it compares

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

Price $788.99
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).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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 SimpliVity 380 Gen10

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 DIMMs fit the HP SimpliVity 380 Gen10 memory slots?

Yes, the kit uses 288-pin DDR4 RDIMMs that match the server's DIMM sockets exactly.

What is the correct way to install the 2Rx4 registered modules in the HP SimpliVity 380 Gen10?

Populate identical 64 GB modules in matched channel pairs and never mix them with unbuffered or load-reduced DIMMs.

When should the ECC registered memory be replaced in the HP SimpliVity 380 Gen10?

Replace modules only if the server logs correctable ECC errors that exceed the platform threshold or a DIMM fails POST.

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