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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 PC5-51200 2Rx4 CL52 1.1V ECC Registered RDIMM memory upgrade

SKU CH-DB4C-DPXDW

128GB DDR5 6400 registered ECC RDIMM with CL52 latency and 1.1V operation for Supermicro H13SSW motherboards

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB capacity lets you fully populate Supermicro H13SSW slots
  • DDR5 6400 speed with CL52 timing matches the board's rated frequency
  • Registered ECC design offloads the controller and corrects single-bit errors on the fly
  • 1 V operation meets the server's specified voltage requirement
  • 288-pin RDIMM form factor fits the exact DIMM slots your motherboard expects

128GB DDR5-6400 ECC RDIMM for Supermicro H13SSW

This 128GB DDR5-6400 registered ECC module is built for the Supermicro H13SSW motherboard. It delivers the exact rank, voltage and timing the board's memory controller expects so the full capacity is recognised at rated speed. The 2Rx4 organisation and 1.1V operation match the platform's qualified specifications.

288-pin registered form factor with major OEM DRAM

The 288-pin RDIMM form factor fits only registered DIMM slots; it will not work in UDIMM or SODIMM sockets. Registered buffering offloads the memory controller, allowing every populated slot to run at full capacity. ECC corrects single-bit errors on the fly to prevent silent data corruption. Chips are sourced from Samsung, Micron or Hynix.

Replaces lower-capacity or slower DDR5 RDIMMs

Upgrading from smaller or lower-speed registered ECC modules adds capacity and bandwidth for memory-bound server workloads. The jump is worth it when your application hits capacity limits or needs the 6400 MT/s data rate. Verify your system manual for supported populations and maximum capacity per slot before purchasing.

How it compares

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

Price $4,026.99
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 $31.46 per GB
Pricier than about 90% 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 numberMR51200-724K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the DDR5 6400 PC5-51200 interface cap at CL52 on this module?

Yes, the module is rated CL52 at DDR5 6400 (PC5-51200) and the registered ECC design keeps every slot stable at that timing when fully populated.

What physical slot and form factor does the 288-pin RDIMM require?

It fits a standard 288-pin DDR5 RDIMM slot on the Supermicro H13SSW motherboard; UDIMM or SODIMM slots will not accept it.

How is the 2Rx4 registered kit installed and what step is often missed?

Insert the RDIMM into the correct population-order slot per the H13SSW manual, press until the ejectors lock, then verify the BIOS recognises the full 128 GB at 6400 MT/s.

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