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Green rectangular DDR5 RDIMM module with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 5600 CL46 4Rx4 ECC RDIMM 1.1V 288-Pin Lenovo ST650 V3 memory upgrade

SKU CH-Q9Q2-96VKP

A 64GB DDR5 5600 ECC RDIMM module with 4Rx4 architecture and CL46 latency for Lenovo ThinkSystem ST650 V3 servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection guards data integrity with registered DDR5 design
  • 64GB capacity expands server memory for heavier workloads
  • 5600MHz speed delivers high bandwidth for Lenovo ST650 V3
  • 1V operation reduces power draw at full load
  • 288-pin RDIMM form factor fits validated server slots

Lenovo ST650 V3 DDR5 upgrade

This 64GB DDR5 ECC RDIMM is built specifically for the Lenovo ThinkSystem ST650 V3 tower server. Registered buffering and on-die ECC protect data integrity in mission-critical workloads. The module operates at 5600MHz with a CL46 latency at 1.10V. It installs as a single 64GB stick in a 288-pin DDR5 slot.

Suited for ST650 V3 capacity expansion

Ideal for administrators adding memory to a configured Lenovo ThinkSystem ST650 V3 that requires registered ECC modules. The 4Rx4 organisation and PC5-44800 rating match the platform's qualified memory list. Not suitable for workstations or servers that demand unbuffered UDIMMs, lower latencies, or speeds beyond 5600MHz.

4Rx4 rank determines slot population

The quad-rank 4Rx4 architecture means each module places a heavier electrical load on the memory controller than dual-rank alternatives. The ST650 V3 memory population rules limit how many 4Rx4 DIMMs can be installed per channel. Verify the server's maximum supported rank count per channel before ordering multiple units.

How it compares

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

Price $1,913.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.91 per GB
Pricier than about 85% 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 Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-944K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Should I choose the single 64 GB module or look for a kit with multiple sticks?

This listing is a single 64 GB DDR5 5600 CL46 ECC RDIMM. Add one module per available slot; the server’s memory population rules determine how many you can install.

What does the 5600 MT/s rating deliver in the ST650 V3?

The module runs at DDR5 5600 (PC5 44800) with CL46 latency, providing the maximum standard speed the ST650 V3 memory controller supports for registered ECC DIMMs.

How does the 288-pin DDR5 RDIMM interface limit performance?

The 288-pin registered DDR5 form factor carries ECC and parity signals; bandwidth is capped at the rated 5600 MT/s and the server’s memory controller configuration.

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