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Two black DDR5 UDIMM modules, no heat spreader, 288 pins each

OWC

OWC 32GB (2x16GB) DDR5 4800 CL40 1.1V UDIMM desktop RAM

SKU CH-QRQD-N4NP6

A 32GB dual-channel DDR5 kit running at 4800MHz with CL40 latency and 1.1V operation

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Dual-channel 32 GB kit expands multitasking headroom with two matched 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 CL40 delivers responsive throughput for everyday workloads
  • 1 V operation reduces power draw and heat inside the case
  • JEDEC and ROHS compliant design ensures a warranty-safe upgrade path
  • Unbuffered non-ECC 288-pin UDIMM form factor fits standard desktop DIMM slots

32GB DDR5 dual-channel kit

This OWC kit supplies 32GB of DDR5 memory in two 16GB unbuffered UDIMMs. It targets desktop, workstation, NAS and all-in-one owners who need a straightforward capacity increase. Modules run at the JEDEC-standard 4800 MT/s with CL40 timings and 1.1V operation. No heat spreaders or lighting are included.

288-pin UDIMM fits standard DDR5 slots

Each stick uses the 288-pin unbuffered DIMM form factor, so it drops into any desktop board wired for DDR5. The dual-channel pairing lets the memory controller interleave access across both modules. Non-ECC operation keeps compatibility simple for consumer platforms. No extra power connectors or cooling hardware are required.

Replaces Crucial CT2K16G48C40U5

The kit is validated as a direct replacement for the Crucial CT2K16G48C40U5 part number. It matches the same 4800 MT/s speed, CL40 latency, 1.1V voltage and 1Rx8 organisation. The upgrade is worthwhile when a system ships with less than 32GB or when older DDR5 modules run at lower data rates.

How it compares

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

Price $412.99
Pricier than about 81% of the 3,647 comparable items (median $90.99).
Total capacity 32 GB (2 × 16 GB)
Higher than about 70% of the 3,251 comparable items (median 16 GB).
Price per GB $12.91 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 number4U8D51R8032P
Total capacity32 GB (2 × 16 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 a motherboard that only supports DDR5 4800 at 1.1V run this kit at its rated CL40 speed?

Yes, the kit is JEDEC-standard DDR5 4800 CL40 at 1.1V, so any board that runs DDR5 4800 at 1.1V will operate it at the rated timings without manual changes.

How hot do the bare modules get during an all-day compile or render workload?

The modules run at the standard 1.1V with no heat spreader, so thermals depend on case airflow; typical DDR5 UDIMMs at this voltage stay within JEDEC limits under sustained load.

Does my desktop need 288-pin DDR5 slots and a CPU memory controller that accepts 1Rx8 unbuffered non-ECC DIMMs?

Yes, the kit uses 288-pin unbuffered non-ECC DDR5 DIMMs in a 1Rx8 organisation, so the platform must provide DDR5 slots and a controller that supports that density and rank configuration.

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