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A green printed circuit board with black memory chips and gold edge connectors, no heat spreader

OWC

OWC 32GB DDR5 4800 CL40 ECC Unbuffered UDIMM desktop RAM

SKU CH-Y580-SWSTW

Adds 32GB of DDR5 4800 ECC unbuffered memory for workstations, servers and NAS systems

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Recommended forWorkstations, Servers, and NAS Systems
  • ECC protection guards data integrity in critical workloads
  • 32GB capacity supports heavy multitasking and large datasets
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • 1V operation reduces power draw and heat output
  • 288-pin UDIMM form factor fits standard desktop and workstation slots

OWC 32 GB DDR5 4800 ECC UDIMM

This 32 GB DDR5 4800 CL40 module runs at 1.1 V and provides ECC error correction in an unbuffered 288-pin form factor. It is built to JEDEC PC5-38400 standards for desktop workstations, servers and NAS systems. The black PCB has no heat spreader or LED lighting.

Who should choose this and who should not

Systems that require ECC unbuffered DDR5 at 4800 MT/s will support this module. Platforms limited to non-ECC memory or registered DIMMs will not be compatible. Buyers needing higher speeds, lower latency or RGB illumination should look at other kits.

The specification that decides fit

The single decisive figure is the 4800 MT/s DDR5 speed with CL40 timing at 1.1 V in a 288-pin ECC unbuffered package. If the motherboard or chassis manual lists that exact combination the module will work; otherwise it will not.

How it compares

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

Price $749.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 32 GB
Higher than about 70% of the 3,251 comparable items (median 16 GB).
Price per GB $23.44 per GB
Pricier than about 90% 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 number4E8D52R832 GB
Total capacity32 GB
Product colorBlack
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Questions about this item

Does my motherboard need a 288-pin DDR5 slot that supports 1.1 V ECC unbuffered DIMMs?

Yes, the module is a 288-pin DDR5 4800 CL40 ECC unbuffered UDIMM running at 1.1 V, so the board must provide a DDR5 slot that accepts ECC unbuffered memory at that voltage.

Can I add this 32 GB DDR5 4800 stick to a system that already has DDR5 4800 ECC unbuffered modules installed?

If the existing memory is also DDR5 4800 ECC unbuffered at 1.1 V, the new 32 GB module will operate alongside it; the system will run all modules at the lowest common speed and timing.

How can I verify the RAM is running at DDR5 4800 with ECC active after installation?

Check the BIOS or UEFI memory information screen — it should report 4800 MT/s, CL40, 1.1 V and show ECC enabled for the 32 GB module.

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