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Green rectangular DDR4 UDIMM module with black chips and gold contacts

OWC

OWC 16GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM for Dell Precision 3930 5820

SKU CH-DD6B-DKPEP

16 GB DDR4-2666 CL19 UDIMM upgrade for Dell Precision 3930 and 5820 workstations

  • Capacity16GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 16GB DDR4 2666MHz CL19 boosts multitasking speed
  • JEDEC compliant 1.2V 288-pin UDIMM ensures safe upgrade
  • 2Rx8 non-ECC unbuffered design fits Dell Precision 3930 5820
  • Backward compatible with 2133MHz and 2400MHz systems
  • Lifetime warranty with free tech support included

OWC 16GB DDR4 2666MHz UDIMM

This 16GB DDR4 module runs at 2666MHz with a CL19 latency and 1.2V operation. It uses a 288-pin unbuffered non-ECC UDIMM form factor and is validated for Dell Precision 3930 and 5820 workstations.

Suits Precision 3930 and 5820 upgrades

Builders expanding memory in a Dell Precision 3930 or 5820 will find this module a direct fit. Systems requiring ECC error correction or registered DIMMs cannot use this non-ECC unbuffered kit.

2666MHz DDR4 speed rating

The PC4-21300 2666MHz CL19 specification determines whether the module matches the platform's supported memory bus; systems limited to lower speeds will downclock automatically.

Highlights

  • 16GB DDR4 2666MHz CL19 boosts multitasking speed
  • JEDEC compliant 1.2V 288-pin UDIMM ensures safe upgrade
  • 2Rx8 non-ECC unbuffered design fits Dell Precision 3930 5820
  • Backward compatible with 2133MHz and 2400MHz systems
  • Lifetime warranty with free tech support included

Specifications

BrandOWC
Part Number2U6D42R816GB
Capacity16GB
Type288-Pin DDR4 Non-ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemDell Precision 3930
Dell Precision 5820

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Questions about this item

Does the PC4-21300 2666MHz DDR4 interface limit speed to 2666MHz in a Dell Precision 3930?

Yes, the module runs at 2666MHz CL19 and is backward compatible with 2133MHz and 2400MHz systems, so the Dell Precision 3930 will operate it at its rated 2666MHz speed.

Will the 288-pin unbuffered UDIMM fit the Dell Precision 5820 motherboard slots?

Yes, the 288-pin DDR4 UDIMM form factor matches the DIMM slots on the Dell Precision 5820 and 3930 workstations.

How is the OWC 16GB DDR4 module installed, and what step do people often miss?

Power off the workstation, open the chassis, align the notch on the 288-pin UDIMM with the slot key, press firmly until both side clips click, then verify 16GB appears in BIOS.

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