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Green printed circuit board with black memory chips, 288 gold edge contacts, no heat spreader

OWC

OWC 16GB DDR5 4800 CL40 1Rx8 288-pin 1.1V Non-ECC UDIMM desktop RAM

SKU CH-BSWE-1V5C8

16 GB DDR5 desktop module running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Recommended forDesktops
  • 16 GB DDR5 4800 boosts multitasking speed
  • CL40 latency keeps data flowing smoothly
  • 1 V operation reduces power draw
  • 288-pin unbuffered design fits standard desktop slots
  • JEDEC and RoHS compliant for reliable upgrades

OWC DDR5 16GB Desktop Module

This OWC DDR5 UDIMM delivers 16GB of JEDEC-standard memory at 4800MHz CL40 for desktop, workstation, NAS and all-in-one systems. The unbuffered 288-pin module runs at 1.1V without ECC or a heat spreader. Part number 4U8D51R816GB replaces Hynix HMCG78MEBUA081N and HMCG78MEBUA084N.

Suits DDR5 Platforms Needing 16GB CL40

Builders upgrading a compatible DDR5 desktop, workstation or NAS will gain capacity with this single 16GB stick. Systems that require registered DIMMs, ECC support or a lower CAS latency should select a different module. The black PCB has no RGB lighting.

JEDEC DDR5 4800 CL40 1.1V 288-pin UDIMM

The decisive specification is the JEDEC DDR5 4800 CL40 1.1V unbuffered 288-pin form factor. Only motherboards and controllers that accept this exact speed, latency, voltage and pin layout will run the module at its rated settings.

How it compares

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

Price $202.99
Pricier than about 68% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $12.69 per GB
Pricier than about 79% of the 3,251 comparable items (median $6.75 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number4U8D51R816 GB
Total capacity16 GB
Product colorBlack
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forDesktops
More details
LED lightingNone

Questions about this item

What motherboard slot and DDR generation does this 16GB module require?

This 16GB module fits a 288-pin UDIMM slot on a motherboard that supports DDR5 memory.

Can I run this DDR5 4800 CL40 stick together with slower DDR5 modules I already own?

Yes, the system will run all installed DDR5 modules at the speed and timings of the slowest stick.

How can I verify the module is operating at PC5-38400 4800MHz CL40 after installation?

Check the memory speed and CAS latency in your BIOS or a system-information tool such as CPU-Z.

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