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

OWC

OWC 16GB DDR5 4800 ECC Unbuffered UDIMM desktop RAM

SKU CH-0VY6-C66G3

16GB DDR5 4800 ECC unbuffered UDIMM runs at 1.1V with CL40 latency for workstation and server reliability

  • Capacity16GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection prevents data errors in critical workloads
  • DDR5 4800 speed delivers 38400 MB/s bandwidth for faster throughput
  • 1 V operation reduces power draw and heat output
  • Unbuffered 288-pin UDIMM fits standard desktop and workstation slots
  • 16 GB capacity expands multitasking headroom for demanding applications

Compatible ECC UDIMM for Workstations

This 16 GB DDR5 module runs at 4800 MT/s with CL40 latency and 1.1 V operation. It is an unbuffered ECC UDIMM built to JEDEC PC5-38400 specifications. The part replaces Kingston KSM48E40BS8KM-16HM and targets workstations, servers and NAS systems that require error-correcting memory.

JEDEC-Compliant Upgrade

The module meets full JEDEC and RoHS standards, so it preserves the original system warranty. No extra software or drivers are bundled; the benefit comes from the hardware compliance and the 1Rx8 organisation. OWC tests every stick in-house before shipping.

Straightforward DIMM Installation

Installation follows the standard 288-pin UDIMM procedure and is described as an easy DIY task. The main risk is inserting the module into a platform that does not support unbuffered ECC DDR5, which will prevent boot or disable ECC. Verify the motherboard or server manual before fitting.

Highlights

  • ECC protection prevents data errors in critical workloads
  • DDR5 4800 speed delivers 38400 MB/s bandwidth for faster throughput
  • 1 V operation reduces power draw and heat output
  • Unbuffered 288-pin UDIMM fits standard desktop and workstation slots
  • 16 GB capacity expands multitasking headroom for demanding applications

Specifications

BrandOWC
Part Number4E8D51R816GB
Capacity16GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredUnbuffered
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

Questions about this item

Does the OWC 16GB DDR5 4800 ECC UDIMM need any periodic maintenance or component replacement after installation?

No maintenance or replacement is required; the module has no moving parts, no heat spreader to clean, and no battery or firmware that degrades over time.

What limit appears first when the 16GB DDR5 4800 CL40 module runs at full load for hours?

The memory controller’s maximum supported speed and the platform’s total DIMM-slot capacity are the first constraints, not the module’s own 4800 MT/s rating or 1.1 V operation.

How much noise, heat or extra power does the 288-pin 1.1 V ECC unbuffered DIMM add when it runs all day?

It adds no audible noise, negligible heat thanks to the low 1.1 V JEDEC voltage, and draws only the standard power for a 16 GB DDR5 4800 CL40 module under sustained load.

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