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Black 288-pin DDR4 UDIMM module without heat spreader

OWC

OWC 8GB DDR4 2666MHz CL19 ECC Unbuffered UDIMM desktop RAM

SKU CH-9DPY-WN1FE

An 8 GB DDR4 module running at 2666 MHz with CL19 latency and ECC error correction for workstation and server stability

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forWorkstations, Servers, and NAS Systems

Capacity 8GB

  • ECC protection guards data integrity in critical workloads
  • 2666 MHz DDR4 speed delivers responsive multitasking
  • 2 V operation reduces power draw and heat
  • 288-pin UDIMM fits standard desktop and server slots
  • Backward compatible with 2133 MHz and 2400 MHz systems

OWC 8GB DDR4 2666MHz ECC UDIMM

This 8GB DDR4 module runs at 2666MHz with CL19 latency and operates at 1.2V. It is an unbuffered ECC UDIMM built for workstations, servers and NAS systems. The single 1Rx8 rank design fits standard 288-pin desktop slots. OWC validates every stick to meet JEDEC specifications.

Sustained load stability with ECC

Error-correcting code detects and corrects single-bit errors during continuous operation, reducing silent data corruption in long-running tasks. The 2666MHz speed and CL19 timing deliver consistent throughput for multi-threaded workloads. Backward compatibility with 2133MHz and 2400MHz platforms allows deployment in mixed-speed environments without downclocking surprises.

Low-profile build for dense configurations

The black PCB carries no heat spreader, keeping the module height low for tight DIMM spacing in 1U chassis or crowded workstation boards. Gold-edge 288-pin connectors ensure reliable contact through repeated thermal cycles. Unbuffered design means direct connection to the memory controller, simplifying troubleshooting in server and NAS deployments.

How it compares

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

Price $52.99
Cheaper than about 64% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $6.62 per GB
Typical for this category: the median of 3,251 items is $6.75 per GB.

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Specifications

Product
Brand nameOWC
Part number2E6D41R808 GB
Total capacity8 GB
Product colorBlack
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Other versions of this model

5 more in the same range

Questions about this item

Will this module work in a motherboard that only supports 2133 MHz or 2400 MHz DDR4?

Yes, the module is backward compatible and will run at 2133 MHz or 2400 MHz if the board does not support 2666 MHz.

Does this stick require a board that supports ECC memory?

Yes, the module includes ECC and must be installed in a motherboard and CPU that explicitly support ECC unbuffered DIMMs.

What voltage does the module operate at and is it standard for DDR4?

It operates at 1.2 V, which is the standard JEDEC voltage for DDR4 memory.

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