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Eight black DDR5 UDIMM modules without heat spreaders

OWC

OWC 128GB (8x16GB) DDR5 5600 CL46 ECC Unbuffered UDIMM desktop RAM

SKU CH-FDSF-T9M8V

A 128GB kit of eight 16GB DDR5 5600 CL46 ECC unbuffered UDIMMs running at 1.1V for workstations, servers or NAS systems

  • Capacity128GB (8 x 16GB)
  • SpeedDDR5 5600 (PC5 44800)
  • CAS LatencyCL46
  • Voltage1.1V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 128GB (8 x 16GB)

  • 128GB total capacity from eight 16GB modules
  • ECC protection detects and corrects single-bit errors
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • JEDEC-standard 1.1V operation keeps power draw low
  • Unbuffered 288-pin UDIMM fits standard desktop DIMM slots

128GB DDR5 5600 ECC Kit

This kit provides 128GB of DDR5 memory in eight 16GB unbuffered UDIMM modules. It targets workstations, servers and NAS systems that require error-correcting code support for data integrity. Each module operates at 5600MT/s with CL46 latency at 1.1V. The 288-pin form factor fits standard desktop DIMM slots.

Sustained Load Behaviour

JEDEC-standard DDR5 at 5600MT/s maintains rated bandwidth during extended workloads because the modules run at the specified 1.1V without overclocking headroom. ECC circuitry detects and corrects single-bit errors on the fly, preventing silent data corruption during long compute or storage tasks. Unbuffered topology keeps latency low for consistent throughput.

Pre-Installation Checks

Verify that the motherboard or system board explicitly supports DDR5 ECC unbuffered UDIMMs at 5600MT/s. Confirm the CPU memory controller accepts 1Rx8 organisation and 1.1V operation. Ensure all eight DIMM slots are available and that the platform qualifies 128GB total capacity in its memory QVL.

Highlights

  • 128GB total capacity from eight 16GB modules
  • ECC protection detects and corrects single-bit errors
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • JEDEC-standard 1.1V operation keeps power draw low
  • Unbuffered 288-pin UDIMM fits standard desktop DIMM slots

Specifications

BrandOWC
Part Number5E6D51R8128K
Capacity128GB (8 x 16GB)
SpeedDDR5 5600 (PC5 44800)
CAS LatencyCL46
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 about this item

Will this 128 GB kit fit in a standard desktop motherboard with four DDR5 slots?

The kit contains eight 16 GB modules, so a board with only four slots cannot accept the full set. You need a platform that provides eight DDR5 DIMM sockets to use all 128 GB.

Does the memory require a motherboard that supports ECC unbuffered DDR5?

Yes, these are ECC unbuffered UDIMMs. The system must explicitly support ECC unbuffered DDR5; standard consumer boards without ECC support will not utilise the error-correction feature and may not post.

What voltage do the modules run at and is any manual adjustment needed?

Each module operates at 1.1 V, the standard DDR5 voltage. No manual voltage adjustment is required; the SPD will configure the correct setting automatically on a compatible platform.

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