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Two green 288-pin DDR4 ECC LRDIMM sticks, no heat spreaders

OWC

OWC 3L2D44R4256P 256GB (2x128GB) DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade

SKU CH-3NBP-FX2JW

256 GB kit of two 128 GB DDR4 3200 CL22 ECC LRDIMMs for HP ProLiant DL110 Gen10 Plus Telco and DL325 Gen10 Plus servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity from two 128 GB modules
  • DDR4 3200 speed with CL22 latency for server workloads
  • ECC load-reduced design protects data integrity in HP ProLiant systems
  • 2 V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz platforms

256GB ECC LRDIMM kit for HP ProLiant servers

This 256GB kit contains two 128GB DDR4 3200 CL22 modules built for HP ProLiant DL110 Gen10 Plus Telco and DL325 Gen10 Plus systems. It runs at 1.2V with 4Rx4 organisation and 288-pin LRDIMM form factor. The memory is intended for server and workstation platforms that require load-reduced ECC DIMMs.

Load-reduced ECC changes compatibility rules

Unlike standard unbuffered or registered ECC DIMMs, these load-reduced modules cannot be mixed with either type in the same system. The kit replaces HP part numbers P06037-B21, P06037-H21, P06037-K21, P43171-B21, P07652-B21, P07652-H21 and P25206-B21. Backward compatibility covers 2133, 2400, 2666 and 2933 MHz speeds.

4Rx4 rank density decides slot population

Each module presents a 4Rx4 configuration that determines how many ranks the memory controller sees per channel. This rank structure is the single specification that governs whether the kit will populate correctly in the supported ProLiant platforms. Buyers who need a different rank layout must choose another part.

How it compares

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

Price $1,509.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.90 per GB
Cheaper than about 66% 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 number3L2D44R4256P
Total capacity256 GB (2 × 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 DL110 Gen10 Plus Telco
HP ProLiant DL325 Gen10 Plus

Other versions of this model

5 more in the same range

Questions about this item

Will the 4Rx4 128 GB modules need any firmware updates or reconfiguration when I add them to the HP ProLiant DL325 Gen10 Plus?

The modules are JEDEC-compliant DDR4 3200 CL22 1.2 V ECC Load Reduced DIMMs designed for the DL110 Gen10 Plus Telco and DL325 Gen10 Plus, so they install without extra firmware steps.

What speed will the kit actually run at if the server only supports 2666 MHz DDR4?

The kit is backward compatible with 2133, 2400, 2666 and 2933 MHz, so it will down-clock to 2666 MHz automatically.

How much power does the 256 GB kit draw at 1.2 V when the server runs continuously?

Each 128 GB LRDIMM operates at 1.2 V; total power draw depends on the server's memory controller and workload, not on the modules alone.

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