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Two black DDR5 UDIMM modules without heat spreaders, 288 pin, 32GB kit

OWC

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

SKU CH-515C-HF23Z

A 32 GB dual-channel DDR5 kit with two 16 GB modules running at 4800 MT/s CL40 on 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

Capacity 32GB (2 x 16GB)

  • 32 GB total capacity from two 16 GB modules
  • DDR5 4800 speed with CL40 latency for responsive performance
  • Low 1.1 V operation reduces power draw and heat
  • JEDEC and ROHS compliant for warranty-safe upgrades
  • Unbuffered 288-pin UDIMM fits standard desktop DIMM slots

32GB dual-channel DDR5 kit

This 32GB kit contains two 16GB DDR5 modules rated at 4800 MT/s with CL40 latency and a 1.1V operating voltage. It is built as a non-ECC unbuffered DIMM for desktop, workstation, NAS and all-in-one systems. The modules use a standard 288-pin layout and carry JEDEC and RoHS compliance.

DDR5 4800 standard limits

DDR5 at 4800 MT/s defines the baseline JEDEC speed for the generation; the memory controller and motherboard firmware determine whether this rate is reached automatically or requires manual configuration. CL40 is the specified CAS latency at this frequency. The 1.1V voltage is the standard DDR5 level and does not imply overclocking headroom.

Check motherboard DDR5 support

Verify that your desktop or workstation board accepts DDR5 UDIMM modules and lists 4800 MT/s in its qualified vendor list. Confirm the board has at least two DIMM slots free for dual-channel operation. Ensure the BIOS is updated to a version that recognises 16GB density modules at this speed.

How it compares

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

Price $429.99
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 $13.44 per GB
Pricier than about 82% 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

Other versions of this model

5 more in the same range

Questions about this item

Will these 288-pin modules fit my desktop motherboard?

The kit uses the standard 288-pin UDIMM form factor for DDR5 desktops; check your board manual to confirm it supports DDR5 memory.

Do I need to enable XMP or manually set timings to reach 4800 MT/s?

These modules run at JEDEC-standard 4800 MT/s CL40 1.1 V out of the box, so no XMP profile or manual tuning is required.

Can I add this 32 GB kit to the 16 GB already installed?

Mixing kits with different speeds, latencies or ranks can cause instability; for best results populate all slots with identical modules.

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