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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 8GB DDR4 2933MHz CL21 ECC Unbuffered UDIMM 1.2V 288-pin desktop RAM

SKU CH-9PYY-ETC56

Single 8GB DDR4 2933MHz CL21 ECC unbuffered UDIMM at 1.2V for workstations, servers and NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forWorkstations, Servers, and NAS Systems

Capacity 8GB

  • ECC protection guards data integrity for critical workloads
  • 2933MHz speed delivers responsive multitasking performance
  • 2V operation reduces system power draw
  • 288-pin UDIMM fits standard desktop and server boards
  • Backward compatible with 2133, 2400 and 2666MHz systems

Single-module upgrade for workstations and NAS

This 8 GB DDR4 module runs at 2933 MHz with a CL21 latency and 1.2 V operation. It is an unbuffered ECC UDIMM built to JEDEC PC4-23400 specifications for desktop PCs, workstations, servers and NAS systems.

Black PCB with no heat spreader fits tight slots

The plain black circuit board carries 288 gold-edge pins and no LED lighting. Its low-profile design clears oversized CPU coolers and dense server chassis while the ECC function detects and corrects single-bit errors during continuous workloads.

Replaces slower DDR4 sticks or fills empty slots

The module is backward compatible with 2133 MHz, 2400 MHz and 2666 MHz systems, so it can upgrade older platforms without BIOS changes. Adding ECC protection is worthwhile when data integrity matters more than raw bandwidth.

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.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2E9D41R808 GB
Total capacity8 GB
Product colorBlack
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
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 standard desktop motherboard that takes DDR4 UDIMMs?

Yes, it is a 288‑pin DDR4 unbuffered UDIMM, the form factor used by most consumer desktop boards that support DDR4 memory.

My system currently runs at 2666 MHz — will the RAM downclock automatically?

The module is backward compatible with 2133 MHz, 2400 MHz and 2666 MHz speeds, so it will run at the highest speed your platform supports.

Does this stick include error‑correction, and is that a problem for a non‑ECC board?

It is an ECC module; on a motherboard without ECC support the extra parity bits are simply ignored and the memory functions as regular non‑ECC RAM.

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