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Two green DDR3L RDIMM modules with gold contacts and black chips

OWC

OWC 64GB (2x32GB) DDR3L 1600 PC3L-12800 CL11 4Rx4 240-pin 1.35V ECC Registered RDIMM Memory Upgrade Kit

SKU CH-RBMZ-JEBX7

DDR3L ECC registered server memory kit, 64 GB in two 32 GB modules at 1600 MHz CL11 1.35 V for Dell PowerEdge R320, R415, R420, R420XR and R515

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 64GB (2 x 32GB)

  • ECC registered design prevents data corruption in servers
  • 64GB kit with two 32GB modules expands capacity
  • DDR3L 1600 speed at 1.35V reduces power draw
  • Qualified for Dell PowerEdge R320 R415 R420 R420XR R515
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-grade ECC RDIMM kit

This OWC kit provides 64 GB of DDR3L memory across two 32 GB registered DIMMs. Each module runs at 1600 MHz with CL11 latency at 1.35 V and uses a 4Rx4 organisation with ECC for data integrity. The 240-pin form factor fits the listed Dell PowerEdge servers.

For compatible Dell PowerEdge owners

The modules are validated for PowerEdge R320, R415, R420, R420XR and R515 systems. They are not compatible with standard desktop motherboards or unbuffered memory configurations. Buyers needing non-ECC memory or a different form factor should look elsewhere.

Two-DIMM upgrade for supported servers

Installing the pair fills two slots and adds 64 GB of registered ECC capacity. The kit requires a platform that accepts DDR3L registered RDIMMs at 1.35 V. No heat spreaders are included, so airflow in the server chassis handles cooling.

How it compares

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

Price $151.99
Cheaper than about 61% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.37 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6T34R4064P
Total capacity64 GB (2 × 32 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsDell PowerEdge R320
Dell PowerEdge R415
Dell PowerEdge R420
Dell PowerEdge R420XR
Dell PowerEdge R515

Other versions of this model

5 more in the same range

Questions about this item

Do I need a Dell PowerEdge server that accepts 240-pin DDR3L registered ECC modules for this kit to work?

Yes, the kit is built for Dell PowerEdge R320, R415, R420, R420XR and R515 systems that take 240-pin DDR3L 1600 registered ECC DIMMs.

Can I keep my existing unbuffered DDR3L DIMMs and add these registered modules alongside them?

No, registered ECC modules cannot be mixed with unbuffered memory; all slots must use registered ECC DIMMs of the same specification.

How can I confirm the memory is running at the correct 1600 MHz CL11 1.35 V settings after installation?

Check the BIOS memory information or a system utility such as CPU-Z; it should report DDR3L 1600 (PC3L-12800) at CL11 and 1.35 V for each module.

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