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

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 5600MHz ECC UDIMM CL46 1.1V 288-Pin memory upgrade for Lenovo ThinkSystem ST45 V3

SKU CH-CX80-1CSMT

A 32 GB DDR5 ECC UDIMM kit of two 16 GB modules at 5600 MHz CL46 1.1 V 288-pin for Lenovo ThinkSystem ST45 V3 tower server

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 32 GB capacity across two 16 GB modules expands server memory
  • DDR5 5600 MHz speed delivers high bandwidth for demanding workloads
  • ECC unbuffered design protects data integrity in critical applications
  • 10 V operation reduces power draw and heat output
  • Validated for Lenovo ThinkSystem ST45 V3 tower server compatibility

Capacity and fit

This 32 GB kit provides two 16 GB DDR5 ECC UDIMM modules rated at 5600 MHz CL46. It is built for the Lenovo ThinkSystem ST45 V3 tower server and targets administrators who need error-correcting memory for data-integrity workloads.

Before ordering

Verify that your ST45 V3 has free 288-pin DDR5 slots and that the system firmware accepts 1Rx8 unbuffered ECC modules at 1.1 V. The kit contains no heat spreaders, so confirm airflow clearance around the DIMM sockets. Ensure the server's memory population rules allow a matched pair in the intended channels.

Thermals noise power

Bare modules run at the standard 1.1 V DDR5 voltage, keeping power draw low in typical server operation. Without heat spreaders the chips rely on chassis airflow, so adequate front-to-rear cooling is required to maintain stable temperatures. The memory itself adds no moving parts and produces no audible noise.

How it compares

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

Price $786.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $24.59 per GB
Pricier than about 69% 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 ECC Unbuffered UDIMM Memory
Part numberME44800-618K2
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR5 ECC UDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items32 GB (2 × 16 GB) DDR5 5600 MHz PC5-44800 1Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

What comes in the box and do I need to buy a heat spreader separately?

The kit contains two 16 GB DDR5 5600 MHz ECC UDIMM modules. No heat spreader is included and none is required for standard server airflow.

Should I choose the 1Rx8 32 GB kit or a different rank configuration for the ThinkSystem ST45 V3?

The 1Rx8 32 GB (2 x 16 GB) kit matches the server’s qualified memory list and provides optimal signal integrity at 5600 MHz.

What does the 5600 MHz PC5-44800 rating mean once the modules are installed in the ST45 V3?

The system will run the memory at 5600 MT/s with CL46 latency at 1.10 V, delivering the rated bandwidth of PC5-44800.

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