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Four green DDR4 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4×16GB) DDR4 3200MHz CL22 ECC Registered RDIMM memory upgrade

SKU CH-QW17-0CY53

64 GB DDR4 server kit (4 × 16 GB) at 3200 MHz with CL22 ECC registered RDIMMs for Supermicro X12SPT‑G/GC motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 64GB 4X16GB

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  • 64 GB total capacity from four 16 GB modules for high-density server workloads
  • DDR4-3200 speed with CL22 latency delivers rated throughput for compatible platforms
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 2 V operation at 1Rx8 rank matches the board's electrical requirements
  • 288-pin RDIMM form factor fits Supermicro X12SPT-G and X12SPT-GC motherboards

Exact-match server upgrade

This 64GB kit contains four 16GB DDR4 RDIMM modules rated at 3200MHz with CL22 latency. Each module operates at 1.2V and uses a 1Rx8 registered ECC design. The kit is validated for Supermicro X12SPT-G and X12SPT-GC motherboards, matching the board's required 288-pin registered form factor and population rules.

Sustained-load stability

Registered buffering reduces electrical load on the memory controller, allowing all four slots to run fully populated at rated speed without down-clocking. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption during long compute runs. The 1.2V operation keeps power draw predictable across extended duty cycles.

Build and daily implications

Modules ship without heat spreaders, relying on server chassis airflow for cooling; verify your case provides adequate air movement over the DIMM slots. The 288-pin RDIMM keying prevents accidental insertion into UDIMM or SODIMM slots. Consult your motherboard manual for the approved population sequence before installation to ensure full 64GB recognition.

How it compares

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

Price $448.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.02 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-618K4
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 4 × 16 GB DDR4 3200 MHz PC4-25600 1Rx8 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How much power does the 1.20V DDR4 kit draw when the server runs all day?

Each module operates at 1.20 volts, the standard DDR4 voltage, keeping power draw low even with all four slots populated continuously.

Does my Supermicro X12SPT-G need a specific BIOS version or CPU to recognise the 4×16GB registered ECC kit?

The kit is validated for the X12SPT-G and X12SPT-GC motherboards; the board's memory controller expects 288-pin registered DDR4 at 3200 MHz with CL22 timing.

Can I mix these 1Rx8 registered DIMMs with older unbuffered DDR4 sticks I already own?

No — registered RDIMMs and unbuffered UDIMMs use different signalling and cannot be installed together on the same motherboard.

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