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Four green DDR5 UDIMM sticks, no heat spreaders, 288-pin gold contacts

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 5600 CL46 1.1V UDIMM for ASRock Rack W880D4U-2L2T memory upgrade

SKU CH-BP3S-SADDA

A 128GB DDR5 5600 kit with four 32GB modules at CL46 and 1.1V for the ASRock Rack W880D4U-2L2T

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 128 GB total capacity from four 32 GB modules
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • Low 1.10 V operating voltage reduces power draw
  • CL46 CAS latency for responsive system performance
  • 288-pin UDIMM form factor fits ASRock Rack W880D4U-2L2T

Targeted Server Memory Kit

This 128GB kit is built specifically for the ASRock Rack W880D4U-2L2T motherboard. It contains four 32GB DDR5 UDIMM modules that install without registration or ECC overhead. System integrators upgrading that platform receive a matched set validated for the board's memory topology. Buyers needing registered DIMMs or error-correcting code support should select a different product line.

Thermals and Power Profile

Each module operates at the standard DDR5 voltage of 1.10V and carries no heat spreader, relying on chassis airflow for cooling. The CL46 latency at 5600 MT/s keeps the DRAM within JEDEC power envelopes during sustained workloads. Audible noise is limited to the system fans; the memory itself adds no active cooling. Installers should verify that case ventilation meets the motherboard vendor's guidelines.

Installation and Compatibility Notes

The package delivers four 288-pin UDIMMs in a single kit, eliminating the need to source individual sticks. Non-ECC unbuffered architecture means the modules work with the W880D4U-2L2T's consumer-style memory controller without server-class buffering. No software utilities or firmware updates are bundled; configuration is handled entirely through the system BIOS. Builders using other motherboards must confirm DDR5 UDIMM support before purchase.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,921.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $15.02 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR5 Non-ECC Unbuffered UDIMM Memory
Part numberMD44800-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items128 GB (4 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN Non-ECC UDIMM KIT

Questions about this item

How do I install the four 32 GB DDR5 5600 UDIMMs in the ASRock Rack W880D4U-2L2T, and which step is often missed?

Power down, open the chassis, align each 288-pin module with the slot key, press firmly until both latches click, then verify in BIOS that all 128 GB run at 5600 MT/s CL46 1.1 V; the step most often missed is checking the BIOS memory map to confirm every module is detected at the rated speed.

What maintenance or replacement will this 128 GB DDR5 kit need over its service life?

The modules have no heat spreader, so keep the server interior clean and maintain strong airflow over the bare PCBs; no scheduled component replacement is expected unless a module fails, in which case the individual 32 GB stick can be swapped.

What limit appears first when this DDR5 5600 CL46 1.1 V kit runs under sustained load in the W880D4U-2L2T?

The primary limit is the CL46 latency at 5600 MT/s combined with the 1.1 V operating voltage; under continuous heavy traffic the memory controller will hit timing and voltage constraints before thermal throttling becomes an issue.

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