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

OWC

OWC 16GB (2x8GB) DDR3L 1600 ECC RDIMM Dell PowerEdge R520 R620 R715 R720 R720xd

SKU CH-05PN-B2J05

A 16 GB dual-channel DDR3L 1600 ECC registered memory kit for Dell PowerEdge R520, R620, R715, R720 and R720xd servers

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 16GB (2 x 8GB)

  • ECC registered design protects data integrity in servers
  • Dual 8 GB modules deliver 16 GB total capacity
  • DDR3L 1600 CL11 at 1.35 V lowers power draw
  • 240-pin RDIMM fits PowerEdge R520 R620 R715 R720 R720xd
  • Replaces Dell part numbers A7134886 A7545680 RKR5J SNPRKR5JC/8G

OWC 16GB DDR3L ECC RDIMM Kit

This OWC kit delivers 16GB of DDR3L 1600 registered ECC memory in two 8GB modules. It is built for Dell PowerEdge R520, R620, R715, R720 and R720xd servers. The modules run at 1.35V with CL11 latency and a 1Rx4 rank configuration.

Suited for Server Maintenance Not Desktop Use

System administrators refreshing memory in the listed PowerEdge models will find a direct-fit upgrade. Builders assembling standard desktop PCs or workstations that require unbuffered non-ECC DIMMs cannot use this registered ECC kit.

Fits 240-Pin DDR3L Registered Slots

Each module plugs into a 240-pin DDR3L RDIMM slot on the supported server motherboards. The registered buffer reduces electrical load on the memory controller, freeing the platform to populate more slots per channel without signal degradation.

How it compares

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

Price $41.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.62 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6T31R4016P
Total capacity16 GB (2 × 8 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
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 models must I already own for this 240-pin DDR3L 1600 ECC RDIMM kit to work?

The kit is validated for Dell PowerEdge R520, R620, R715, R720 and R720xd servers.

Can I mix these 1.35 V registered ECC modules with any existing unbuffered DDR3L DIMMs in my server?

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

How do I verify the kit is running at the correct 1600 MHz CL11 1.35 V settings after installation?

Check the BIOS or UEFI memory information screen — it should report DDR3L 1600 (PC3L-12800) CL11 at 1.35 V with ECC registered mode active.

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