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Eight black DDR4 UDIMM sticks in a row

OWC

OWC 64GB (8x8GB) DDR4 2400 CL17 ECC Unbuffered UDIMM 1.2V 288-pin Desktop RAM

SKU CH-AQZA-TDMDP

Eight 8 GB DDR4 2400 ECC unbuffered modules totalling 64 GB for workstations, servers and NAS at 1.2 V

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (8 x 8GB)

  • 64 GB total capacity from eight 8 GB modules
  • DDR4 2400 speed with CL17 latency for responsive multitasking
  • ECC unbuffered design protects data integrity in workstations and servers
  • 2 V operation reduces power draw and heat output
  • Backward compatible with 2133 MHz systems for flexible upgrades

Capacity and purpose

This kit provides 64GB of DDR4 memory across eight 8GB modules. It is built for workstations, servers and NAS systems that require error-correcting code reliability. The modules run at 2400MHz with CL17 latency and operate at 1.2V. They are unbuffered 288-pin UDIMMs suitable for compatible desktop platforms.

Thermals noise and power

Operating at 1.2V keeps power draw low for a fully populated eight-module configuration. No heat spreaders are fitted, so airflow across the bare PCBs handles thermal management. The JEDEC-standard voltage and timings avoid extra stress on the memory controller. Silent operation is inherent because there are no active cooling components.

Build and connectivity

Each module uses a black PCB with 288 gold-plated edge contacts and no RGB lighting. The unbuffered ECC design plugs directly into standard DDR4 UDIMM slots without registration delays. Backward compatibility with 2133MHz systems allows use in older platforms. The eight-module layout fills most consumer boards completely, so verify slot count before installation.

How it compares

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

Price $444.99
Pricier than about 83% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $6.95 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 number2E4D41R8064K
Total capacity64 GB (8 × 8 GB)
Product colorBlack
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
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 64GB kit work in a standard desktop motherboard that only supports non-ECC memory?

The modules are ECC unbuffered; many consumer desktop boards ignore the ECC function but some will not boot with ECC DIMMs installed. Check your motherboard manual for explicit ECC support before purchasing.

Can I mix these 2400MHz modules with existing 2133MHz DDR4 sticks?

Yes, the kit is backward compatible with 2133MHz operation. When mixed, all modules will run at the lower 2133MHz speed and the loosest timings present in the system.

Does the kit require a heat spreader or active cooling for sustained workloads?

The modules ship without a heat spreader and operate at the standard 1.2V JEDEC voltage. For typical workstation or NAS loads, case airflow is usually sufficient; monitor temperatures if the chassis has restricted airflow.

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