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Two green DDR5 ECC UDIMM sticks, no heat spreaders, 288-pin, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 ECC UDIMM 2Rx8 CL46 1.1V Lenovo ThinkSystem ST45 V3 memory upgrade

SKU CH-FG6K-P56VX

64 GB kit of two 32 GB DDR5 5600 ECC UDIMM modules at CL46 and 1.1 V for Lenovo ThinkSystem ST45 V3 tower servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB capacity expands server memory headroom
  • DDR5 5600 speed delivers high bandwidth for demanding workloads
  • ECC protection detects and corrects single-bit errors
  • 1 V operation reduces power draw per module
  • Validated for Lenovo ThinkSystem ST45 V3 compatibility

ThinkSystem ST45 V3 memory kit

This 64 GB kit contains two 32 GB DDR5 ECC UDIMM modules built for the Lenovo ThinkSystem ST45 V3 tower server. It targets administrators who need to expand system memory with validated, unbuffered DIMMs.

DDR5 5600 ECC UDIMM 2Rx8 CL46

The modules run at DDR5 5600 (PC5-44800) with a CAS latency of CL46 and a 2Rx8 organisation. ECC and unbuffered operation are the decisive specifications for compatibility with this platform.

Standard voltage low-power operation

Rated at 1.1 V, the kit draws minimal power and generates little heat under normal server workloads. No heat spreaders are fitted, so airflow across the DIMM slots handles cooling silently.

How it compares

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

Price $1,352.99
Pricier than about 63% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $21.14 per GB
Pricier than about 66% 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 numberME44800-328K2
Total capacity64 GB (2 × 32 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

What does the DDR5 5600 speed mean for actual throughput in the ThinkSystem ST45 V3?

The kit runs at 5600 MT/s, delivering up to 44800 MB/s of peak bandwidth per module when the server's memory controller operates at the rated DDR5 5600 frequency.

How does the ECC unbuffered UDIMM interface affect error correction and maximum capacity in this server?

ECC corrects single-bit errors on the fly, while the unbuffered design connects directly to the memory controller without a register, so the ST45 V3 must support UDIMM ECC topology for the 64 GB kit to function.

Will the 288-pin modules fit the ST45 V3's DIMM slots without a heat spreader?

Yes, the 288-pin DDR5 UDIMM form factor matches the server's slots, and the absence of a heat spreader keeps the modules low-profile for dense tower configurations.

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