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Eight black DDR4 UDIMM modules in a row

OWC

OWC 128GB (8x16GB) DDR4 2400 CL17 ECC UDIMM desktop RAM

SKU CH-R3AK-2AT0H

A 128GB kit of eight 16GB DDR4 2400 CL17 ECC unbuffered UDIMMs for workstations, servers and NAS systems

  • Capacity128GB (8 x 16GB)
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 128GB (8 x 16GB)

  • 128 GB capacity across eight 16 GB modules handles heavy workloads
  • ECC protection detects and corrects single-bit errors for data integrity
  • DDR4 2400 MHz CL17 speed delivers responsive multitasking performance
  • 2 V operation reduces power draw and heat output
  • JEDEC and RoHS compliant for broad workstation and server compatibility

Capacity and Configuration

This kit provides 128GB of DDR4 memory arranged as eight 16GB unbuffered UDIMMs. It runs at 2400MHz with a CL17 latency and operates at the standard 1.2V. The modules use a 288-pin form factor and include ECC error correction for data integrity.

Workstation and Server Suitability

The ECC unbuffered design targets workstations, servers and NAS systems that require error-correcting memory without registered buffering. Desktop PCs lacking ECC support in the chipset or BIOS will not benefit from the error correction and should consider non-ECC kits instead.

Deciding Specification

ECC unbuffered operation is the single attribute that determines compatibility; the motherboard must explicitly support ECC on unbuffered DIMMs for the error correction to function. Without that support the modules will still run but the key feature is inactive.

Points forts

  • 128 GB capacity across eight 16 GB modules handles heavy workloads
  • ECC protection detects and corrects single-bit errors for data integrity
  • DDR4 2400 MHz CL17 speed delivers responsive multitasking performance
  • 2 V operation reduces power draw and heat output
  • JEDEC and RoHS compliant for broad workstation and server compatibility

Caractéristiques

BrandOWC
Part Number2E4D42R8128K
Capacity128GB (8 x 16GB)
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Questions sur cet article

Will the eight 16 GB sticks need any maintenance or replacement over time?

The modules are solid-state with no moving parts and no heat spreaders to degrade, so they require no routine maintenance or scheduled replacement under normal operation.

What limit appears first when the 2400 MHz CL17 kit runs continuously at full load?

The DDR4 JEDEC voltage ceiling of 1.2 V is the first hard limit; sustained heavy workloads cannot push the modules beyond that spec without violating compliance.

How much heat and power does the 128 GB ECC UDIMM set produce during all-day use?

Each 16 GB stick draws 1.2 V at standard DDR4 current, so the full 8-module kit stays within typical unbuffered DIMM thermal envelopes without active cooling.

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