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Eight black DDR5 UDIMM modules in a row

OWC

OWC 128GB (8x16GB) DDR5 4800 CL40 ECC Unbuffered UDIMM Kit

SKU CH-EXYX-ZKSRY

Eight 16 GB DDR5 ECC unbuffered modules at 4800 MT/s CL40 1.1 V for workstations and servers

  • Capacity128GB (8 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 128GB (8 x 16GB)

  • 128 GB total capacity from eight 16 GB modules
  • ECC protection detects and corrects single-bit memory errors
  • DDR5 4800 speed with CL40 latency for responsive workloads
  • 1 V operation lowers power draw and heat output
  • JEDEC-standard design ensures compatibility with supported workstations and servers

Kit Purpose

This 128GB kit contains eight 16GB DDR5 unbuffered UDIMMs rated at 4800 MT/s with CL40 latency. It is intended for workstations, servers and NAS systems that require ECC error correction and JEDEC-standard operation.

Deciding Specification

The modules run at 1.1V and present a 288-pin ECC unbuffered interface, so the motherboard must support DDR5 ECC unbuffered DIMMs at the native 4800 speed without overclocking.

Build Integration

Populating all eight slots delivers the full 128GB capacity in a dual-channel configuration, leaving no free DIMM slots for later expansion. The lack of a heat spreader keeps the profile low for dense server chassis, while the 1.1V rating reduces power draw compared with higher-voltage DDR5 kits.

Points forts

  • 128 GB total capacity from eight 16 GB modules
  • ECC protection detects and corrects single-bit memory errors
  • DDR5 4800 speed with CL40 latency for responsive workloads
  • 1 V operation lowers power draw and heat output
  • JEDEC-standard design ensures compatibility with supported workstations and servers

Caractéristiques

BrandOWC
Part Number4E8D51R8128K
Capacity128GB (8 x 16GB)
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
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 this kit fit a standard desktop motherboard that only supports non-ECC memory?

The modules are ECC unbuffered DIMMs, so the motherboard must explicitly support ECC; a board limited to non-ECC will not work with this kit.

Do I need to populate all eight slots to run the kit at its rated speed?

The kit contains eight 16 GB modules rated at 4800 MT/s CL40; they will operate at that speed when installed in a compatible platform, regardless of whether every slot is filled.

Is additional cooling required because the modules lack a heat spreader?

These DIMMs run at 1.1 V and have no heat spreader; standard case airflow is normally sufficient, but verify your chassis provides adequate ventilation for dense memory configurations.

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