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Four green 288-pin DDR4 LRDIMM modules, no heat spreaders

OWC

OWC 512GB (4x128GB) DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC LRDIMM Kit

SKU CH-R4TR-SAP07

A 512GB quad-channel DDR4 3200 ECC LRDIMM kit for HP ProLiant DL385 and DX series servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 512GB (4 x 128GB)

  • 512 GB total capacity across four 128 GB modules
  • DDR4 3200 speed with CL22 latency for server workloads
  • ECC load-reduced design maintains data integrity under load
  • 2 V operation reduces power draw in dense configurations
  • Compatible with HP ProLiant DL385 Gen10 Plus and DX360 Gen10 Plus

Kit contents and target systems

This kit provides 512GB of DDR4 3200 ECC Load Reduced memory in four 128GB modules. It is built for HP ProLiant DL385 Gen10 Plus, DL385 Gen10 Plus v2, DX360 Gen10 Plus and DX385 Gen10 Plus servers and workstations that require registered LRDIMM technology.

Sustained-load behaviour

Load Reduced architecture reduces electrical load on the memory bus, allowing all four 4Rx4 modules to run at the rated 3200MHz speed under continuous server workloads. ECC corrects single-bit errors in real time and the kit is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz operation if the platform dictates a lower frequency.

Compatibility checks before ordering

Verify that your system requires DDR4 ECC Load Reduced DIMMs and cannot accept unbuffered or standard registered ECC modules. The 288-pin form factor and 1.2V voltage must match the motherboard slots. This kit will not work in standard desktop computers or in platforms that do not support LRDIMM memory.

How it compares

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

Price $2,665.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.21 per GB
Cheaper than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3L2D44R4512S
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProLiant DL385 Gen10 Plus
HP ProLiant DL385 Gen10 Plus v2
HP ProLiant DX360 Gen10 Plus
HP ProLiant DX385 Gen10 Plus

Other versions of this model

5 more in the same range

Questions about this item

How much power do the 1.2V LRDIMMs draw when the server runs all day?

Each module operates at 1.2V; total draw depends on the platform's memory controller and workload, not on the kit alone.

What must the HP ProLiant already have to accept this 4Rx4 ECC Load Reduced kit?

The server must support DDR4 LRDIMM memory and have four free 288-pin slots; it cannot mix these with unbuffered or registered DIMMs.

Will the 3200MHz modules downclock to 2666MHz in my Gen10 Plus without BIOS changes?

Yes, the kit is backward compatible with 2133, 2400, 2666 and 2933MHz speeds and will run at the highest speed the platform negotiates.

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