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Two black DDR4 UDIMM modules without heat spreaders

OWC

OWC 64GB (2x32GB) DDR4 2933 CL21 ECC Unbuffered UDIMM desktop RAM

SKU CH-ET7T-GWPJ7

Dual-channel 64 GB kit of DDR4 2933 CL21 ECC unbuffered UDIMM modules for workstations, servers and NAS systems

  • Capacity64GB (2 x 32GB)
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 64GB (2 x 32GB)

  • ECC protection guards data integrity for servers and workstations
  • 64GB dual-channel kit (2×32GB) expands multitasking headroom
  • DDR4 2933 CL21 at 1.2V balances speed and efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666MHz systems

64GB DDR4 ECC kit for workstations

This 64GB kit contains two 32GB DDR4 2933 CL21 ECC unbuffered UDIMMs. It targets workstations, servers and NAS systems that require error-correcting memory for data integrity. The modules run at 1.2V and conform to JEDEC PC4-23400 specifications. They install in standard 288-pin desktop DIMM slots.

Upgrade from 2133/2400/2666MHz non-ECC DDR4

The kit is backward compatible with 2133MHz, 2400MHz and 2666MHz DDR4 platforms. The jump is worth it when your workload needs ECC protection and higher bandwidth than those slower speeds provide. Dual-channel 2933MHz operation raises throughput for memory-bound tasks such as virtualization, ZFS caches or large dataset processing. Non-ECC systems cannot use the error-correction feature.

Sustained load behaviour with ECC active

Under continuous load the ECC logic detects and corrects single-bit errors without halting the system. Unbuffered topology keeps latency low at CL21 while the 1.2V supply limits heat rise during long compile, backup or database sessions. The absence of a heat spreader means airflow across the bare PCB is the only cooling path; ensure the chassis provides adequate air movement over the slots.

Points forts

  • ECC protection guards data integrity for servers and workstations
  • 64GB dual-channel kit (2×32GB) expands multitasking headroom
  • DDR4 2933 CL21 at 1.2V balances speed and efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666MHz systems

Caractéristiques

BrandOWC
Part Number2E9D42R8064P
Capacity64GB (2 x 32GB)
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Questions sur cet article

Will this kit run in a board that only supports 2666 MHz DDR4?

Yes, the modules are backward compatible with 2666 MHz, 2400 MHz and 2133 MHz systems and will operate at the highest speed the board allows

Does the motherboard need to support ECC for these DIMMs to work?

The memory will function in non-ECC boards but error correction will be inactive; full ECC benefit requires a platform that explicitly supports ECC unbuffered UDIMMs

How many slots are needed and what voltage do they draw?

The kit contains two 32 GB modules for a dual-channel install and each DIMM runs at the standard 1.2 V DDR4 voltage

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