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Green printed circuit board with gold edge connectors and black memory chips on both sides

NEMIX RAM

NEMIX RAM 128GB DDR5 5600 4Rx4 CL46 1.1V ECC Registered RDIMM memory upgrade

SKU CH-M56D-2AFGT

128 GB DDR5 5600 RDIMM with 4Rx4 ECC registered design, 1.1 V and CL46 timing, verified for Supermicro X14SDV-42C-SP3F motherboards

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

  • 128GB capacity supports heavy workloads with four ranks per module
  • DDR5 5600 speed delivers PC5-44800 bandwidth for demanding applications
  • CL46 latency at 1.1V balances performance and power efficiency
  • ECC and registered design corrects errors and stabilises fully populated servers
  • 288-pin RDIMM form factor matches Supermicro X14SDV-42C-SP3F motherboard requirements

128 GB DDR5-5600 Registered ECC RDIMM

This is a 128 GB DDR5-5600 (PC5-44800) registered ECC RDIMM built to the exact rank, voltage and timing the Supermicro X14SDV-42C-SP3F motherboard expects. It uses a 4Rx4 organisation at 1.1 V with CL46 latency and fits the board's 288-pin DDR5 slots. The module is designed for servers that require registered memory with error correction.

Who this suits and who should look elsewhere

This module suits administrators upgrading or populating the specified Supermicro motherboard with a single 128 GB registered ECC DIMM. It is not for systems that accept only unbuffered UDIMMs or SODIMMs, nor for boards that cannot address a 4Rx4 registered DIMM at this capacity. Buyers needing a different capacity, rank configuration or form factor should look elsewhere.

What to check before ordering

Confirm the motherboard manual lists 128 GB 4Rx4 registered ECC DDR5-5600 as a supported configuration and note the approved DIMM population order for your CPU count. Verify the board has an available 288-pin DDR5 RDIMM slot and that the memory controller can operate at 1.1 V. Ensure your firmware is at a version that recognises this module at full capacity and rated speed.

How it compares

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

Price $4,152.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.45 per GB
Pricier than about 90% 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 nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-744K1
Total capacity128 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
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does my Supermicro X14SDV-42C-SP3F motherboard need a specific BIOS version or CPU to recognise the 128GB DDR5 5600 4Rx4 RDIMM?

The module is an exact-match upgrade for the X14SDV-42C-SP3F at DDR5 5600, CL46, 1.1V, 4Rx4 Registered ECC; consult your motherboard manual for supported capacities, population order, and any required BIOS revision before installing.

Can I mix this 4Rx4 Registered ECC RDIMM with existing 2Rx8 or UDIMM modules in the same server?

Registered RDIMMs cannot be mixed with unbuffered UDIMMs; different rank structures such as 4Rx4 versus 2Rx8 may prevent the memory controller from training all slots at the rated DDR5 5600 speed, so populate identical modules per the board's population rules.

How do I verify the kit is running at DDR5 5600 CL46 1.1V with ECC active after installation?

Enter the BIOS or use a tool such as dmidecode or IPMI to confirm each DIMM reports 5600 MT/s, CL46, 1.1V, Registered ECC, and 4Rx4 organisation, and that the system shows the full 128GB capacity with no correctable-error alerts.

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