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Two green DDR5 RDIMM modules, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 5600 CL46 4Rx4 ECC RDIMM SuperMicro B13SEE-CPU-25G memory upgrade

SKU CH-KSVB-V2VXA

256 GB DDR5-5600 ECC registered server kit in two 128 GB modules with CL46 latency and 1.1 V operation

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB capacity scales memory-intensive workloads
  • DDR5 5600 speed delivers high data throughput
  • CL46 latency supports responsive server operation
  • ECC registered design protects data integrity
  • 1 V voltage reduces power consumption

256 GB DDR5 5600 ECC RDIMM kit

This 256 GB kit contains two 128 GB DDR5 5600 registered DIMMs with CL46 latency and on-die ECC. It is built for the SuperMicro B13SEE-CPU-25G server motherboard and targets administrators who need maximum registered capacity per channel for virtualization or database workloads.

1.1 V operation and registered buffering

Each module runs at 1.10 V and uses a registered buffer to reduce electrical load on the memory controller. The 4Rx4 organisation spreads density across four ranks per DIMM, helping signal integrity at 5600 MT/s without a heat spreader in typical server airflow.

Two 288-pin slots required for full kit

The kit occupies two 288-pin DDR5 RDIMM slots and delivers 256 GB total capacity, leaving remaining slots free for further expansion if the board supports more than two modules per channel. Buyers needing non-ECC or unbuffered memory for desktop platforms cannot use this kit.

How it compares

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

Price $8,180.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.96 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSupermicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR44800-744K2
Total capacity256 GB (2 × 128 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 systemsSupermicro
In the box
Included items256 GB (2 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules in the SuperMicro B13SEE-CPU-25G, and what step is often missed?

Power down, open the chassis, align each 288-pin module with the DDR5 RDIMM slot key, press firmly until both retention clips click, then verify in BIOS that all 256 GB at 5600 MT/s are recognised.

What maintenance or replacement will the 4Rx4 ECC registered kit need over time?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and the modules are covered by a lifetime replacement warranty if a fault ever develops.

What limit appears first when the 1.1 V DDR5 5600 CL46 memory runs sustained workloads?

The CAS latency of CL46 at 5600 MT/s sets the timing boundary; sustained throughput cannot exceed the rated PC5-44800 bandwidth without exceeding specification.

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