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Four green 240-pin DDR3L ECC registered DIMMs, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR3L 1600 CL11 ECC RDIMM Dell PowerEdge

SKU CH-4J46-04QPP

128 GB DDR3L ECC registered kit with four 32 GB modules at 1600 MHz for Dell PowerEdge R520, R620, R715, R720 and R720xd servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR3L 1600 speed with CL11 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • 35 V low-voltage operation reduces power draw
  • Validated for Dell PowerEdge R520, R620, R715, R720, R720xd

Server ECC RDIMM Kit

This OWC kit supplies 128 GB of DDR3L ECC registered memory across four 32 GB modules. It runs at 1600 MHz with CL11 latency and 1.35 V operation. The 240-pin RDIMMs are built to JEDEC standards for Dell PowerEdge R520, R620, R715, R720 and R720xd servers.

Suits Dell PowerEdge R-Series

This memory fits the listed Dell PowerEdge R520, R620, R715, R720 and R720xd systems requiring registered ECC RDIMMs. It will not work in standard desktops, laptops or consumer motherboards that accept only unbuffered non-ECC modules. Buyers needing unbuffered memory or a different form factor should look elsewhere.

Registered ECC With 4Rx4 Rank

Each 32 GB module uses a 4Rx4 organisation and registered ECC signalling, which the compatible Dell PowerEdge platforms require for stability and error correction. Mixing these RDIMMs with unbuffered DIMMs is not supported. Verify that your server expects registered ECC memory before purchase.

How it compares

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

Price $313.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.45 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 number1R6T34R4128S
Total capacity128 GB (4 × 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 R520
Dell PowerEdge R620
Dell PowerEdge R715
Dell PowerEdge R720
Dell PowerEdge R720xd

Other versions of this model

5 more in the same range

Questions about this item

Which Dell PowerEdge servers must I already own for this 128GB DDR3L 1600 kit to work?

The kit is validated for Dell PowerEdge R520, R620, R715, R720 and R720xd systems with DDR3L RDIMM slots.

Can I keep my existing DDR3L unbuffered DIMMs and add these 4Rx4 registered modules alongside them?

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

How do I confirm the 128GB kit is running at 1600 MHz CL11 after installation?

Check the BIOS memory information or run a tool such as CPU-Z to verify speed, latency and ECC status.

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