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Two black 16GB DDR5 UDIMM sticks, 288-pin, no heat spreader, no LEDs

OWC

OWC 4U8D51R8032P 32GB (2x16GB) DDR5 4800 CL40 1.1V Non-ECC UDIMM desktop RAM

SKU CH-K8NF-A7X1J

Dual-channel 32 GB kit of DDR5 4800 CL40 UDIMM modules at 1.1 V for desktop upgrades

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • 32 GB dual-channel kit expands multitasking headroom
  • DDR5 4800 CL40 delivers responsive system performance
  • 1 V JEDEC standard voltage keeps power draw low
  • 288-pin unbuffered UDIMM fits standard desktop slots
  • 100 % JEDEC and RoHS compliant for warranty-safe upgrades

Capacity and Use

This kit provides 32GB of DDR5 desktop memory in a matched pair of 16GB modules. It is built for desktops, workstations, NAS systems and all-in-one PCs that accept 288-pin unbuffered non-ECC DIMMs.

JEDEC Standard Limits

The modules run at the JEDEC DDR5 4800 baseline with a CAS latency of 40 at 1.1V. They are 100% compliant with the PC5-38400 specification, so they operate within the standard voltage and timing envelope without requiring manual tuning.

Upgrade Path and Value

The kit is a direct replacement for the Kingston KVR48U40BS8K2-32 part number, making it a drop-in upgrade for systems originally shipped with that memory. The jump is worthwhile when the platform supports DDR5 4800 and the user needs more capacity for multitasking or larger workloads.

How it compares

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

Price $416.99
Pricier than about 82% 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 $13.03 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 this kit fit a standard desktop motherboard that takes 288-pin DDR5 UDIMMs?

Yes, each module is a 288-pin unbuffered DIMM built to the JEDEC DDR5 4800 specification, so it installs in any desktop board with DDR5 UDIMM slots.

Can I run these modules at their rated speed without changing voltages in the BIOS?

The kit operates at the JEDEC-standard 1.1 V and CL40 timings, so it will run at 4800 MT/s on any compatible platform without manual voltage adjustments.

Is this memory suitable for a workstation or NAS that requires non-ECC DDR5?

The modules are non-ECC unbuffered DDR5 and are listed as compatible with desktop, workstation, NAS and all-in-one systems that accept standard DDR5 UDIMMs.

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