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

OWC

OWC 16GB DDR5 4800 CL40 ECC Unbuffered SODIMM laptop RAM

SKU CH-6EV5-NBR9N

A 16 GB DDR5 SODIMM with ECC running at 4800 MT/s CL40 for laptops, NAS and all-in-one systems

  • Capacity16GB
  • Type262-Pin DDR5 SO-DIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 16GB

  • ECC protection keeps data intact on critical workloads
  • 4800 MHz DDR5 speed lifts multitasking responsiveness
  • JEDEC-standard 1.1 V operation cuts power draw
  • 262-pin SO-DIMM fits laptops, NAS and all-in-one systems
  • 16 GB single module upgrades capacity in one step

Single-module 16 GB DDR5 upgrade

This 16 GB DDR5 4800 CL40 module brings ECC error correction and 1.1 V operation to a standard 262-pin SO-DIMM slot. It is built for laptops, all-in-one PCs, NAS units and select servers that require unbuffered ECC memory. The JEDEC-compliant design ensures a warranty-safe upgrade path for supported platforms.

Suited for ECC-capable DDR5 systems only

This module fits systems that explicitly support DDR5 4800 unbuffered ECC SO-DIMMs. It is not for machines that accept only non-ECC memory, nor for platforms limited to earlier DDR generations or different form factors. Buyers who need higher capacity per slot or registered DIMMs should look elsewhere.

ECC unbuffered DDR5 4800 CL40 at 1.1 V

The decisive specification is the combination of ECC unbuffered operation, DDR5 4800 speed, CL40 latency and 1.1 V voltage in a 262-pin package. If the target system requires registered ECC, non-ECC, a different speed grade or a different pin count, this module will not function.

Highlights

  • ECC protection keeps data intact on critical workloads
  • 4800 MHz DDR5 speed lifts multitasking responsiveness
  • JEDEC-standard 1.1 V operation cuts power draw
  • 262-pin SO-DIMM fits laptops, NAS and all-in-one systems
  • 16 GB single module upgrades capacity in one step

Specifications

Part Number4C8D51R816GB
Capacity16GB
Type262-Pin DDR5 SO-DIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
ECCYes
Buffered/RegisteredUnbuffered
Heat SpreaderNo

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much power does this 1.1 V DDR5 module draw during continuous operation?

It operates at the JEDEC-standard 1.1 V, so power draw is determined by the laptop or NAS platform rather than the module itself.

Does my system need to support ECC unbuffered DDR5 SO-DIMMs for this stick to function?

Yes — the module is a 262-pin ECC unbuffered DDR5 SO-DIMM, so the platform must accept that exact type.

Will this CL40 4800 MT/s module run at its rated speed alongside slower DDR5 memory?

The memory controller will set all installed modules to the lowest common speed and latency.

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