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Eight green DDR3 ECC registered DIMMs in static bags

OWC

OWC 256GB (8x32GB) DDR3 1600 CL11 4Rx4 240-pin 1.5V ECC Registered RDIMM Kit

SKU CH-3JE2-P0P8J

Eight 32 GB DDR3 1600 CL11 ECC registered modules totalling 256 GB for servers and workstations

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 256GB (8 x 32GB)

Rank 4Rx4

  • ECC registered design protects data integrity in critical workloads
  • 256GB kit with eight 32GB modules maximises server capacity
  • DDR3 1600 CL11 speed delivers reliable throughput for legacy platforms
  • 5V JEDEC-standard voltage ensures broad workstation compatibility
  • 240-pin RDIMM form factor fits select servers and NAS systems

Server ECC RDIMM Kit

This kit provides 256GB of DDR3 memory across eight 32GB registered DIMMs. It is built for workstations, servers, NAS systems and routers that require ECC error correction and registered signal buffering. Standard desktop computers cannot use these modules and they must not be mixed with unbuffered memory.

Thermals and Power

Each module operates at the JEDEC-standard 1.5V without a heat spreader, relying on system airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping to keep power draw predictable in multi-DIMM configurations. The design meets ROHS and JEDEC compliance for stable, warranty-safe operation.

Upgrade Context

This kit replaces smaller-capacity DDR3 RDIMM sets or fills empty slots in compatible 240-pin platforms to maximise memory bandwidth for virtualisation and large datasets. The jump is worthwhile when the platform supports 4Rx4 registered modules and the workload demands ECC integrity beyond what unbuffered memory can provide.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $668.99
Pricier than about 74% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $2.61 per GB
Cheaper than about 91% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6D34R4256K
Total capacity256 GB (8 × 32 GB)
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.5 V

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 240-pin DDR3 RDIMM modules in my server?

Power down the system, open the chassis, align each module's notch with the slot key, press firmly until the retention clips click, and populate slots per the motherboard's channel guide; the step most often missed is verifying the BIOS recognises all 256 GB after the first boot.

What maintenance or replacement will the 8 x 32 GB ECC registered kit need over time?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and the modules carry a limited lifetime warranty, so replacement only occurs if a DIMM fails or a future platform upgrade demands a different memory generation.

What limit appears first when the 1600 MHz CL11 4Rx4 RDIMMs run sustained workloads?

The registered buffer and quad-rank organisation add slight latency, so memory-controller throughput typically saturates before the 1.5 V modules reach thermal limits under continuous heavy load.

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