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Two black DDR5 UDIMM modules, no heat spreader, 288-pin, 64GB kit

OWC

OWC 64GB (2x32GB) DDR5 4800 CL40 1.1V Desktop RAM

SKU CH-DC4R-F52EC

A 64 GB dual-channel DDR5 kit running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • 64GB dual-channel kit doubles bandwidth for heavy multitasking
  • DDR5 4800 speed with CL40 latency accelerates data-intensive workloads
  • 1V operation reduces power draw and heat output
  • JEDEC-standard compliance ensures broad desktop and workstation compatibility
  • Unbuffered non-ECC 288-pin DIMMs install without extra configuration

64 GB dual-channel DDR5 kit

This kit supplies two 32 GB unbuffered DDR5 modules rated at 4800 MT/s with CL40 latency. It targets desktop, workstation and all-in-one owners who want a JEDEC-standard upgrade path without overclocking or extra voltage headroom.

1.1 V operation keeps thermals modest

Running at the standard 1.1 V means the modules generate little additional heat and draw minimal power during typical workloads. No heat spreaders are fitted, so case airflow handles cooling quietly without fan-speed changes.

Replaces Crucial CT2K32G48C40U5 directly

The kit matches the Crucial part number specification for capacity, speed, timing and pin-out, making it a drop-in alternative when that SKU is unavailable. The jump is worthwhile when a system needs 64 GB of compliant DDR5 for multitasking, large-file editing or virtualization workloads.

How it compares

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

Price $826.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $12.92 per GB
Pricier than about 80% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number4U8D52R8064P
Total capacity64 GB (2 × 32 GB)
Product colorBlack
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forDesktops
More details
LED lightingNone

Questions about this item

Will this kit work in a desktop that only has two DDR5 slots?

Yes. The kit contains two 32 GB modules for a total of 64 GB, so it fills both slots and runs in dual-channel mode.

Does the memory require a motherboard that supports 1.1 V DDR5 operation?

Yes. The modules are rated at 1.1 V, which is the standard JEDEC voltage for DDR5 4800.

Is any extra cooling or a heat spreader needed for these sticks?

No. The modules ship without a heat spreader and are designed to operate within JEDEC thermal limits at 4800 MT/s CL40.

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