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Two green DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM SuperMicro X13SEI-F X13SEI-TF memory upgrade

SKU CH-S0VN-N9P77

128 GB DDR5-4800 ECC registered dual-rank kit validated for SuperMicro X13SEI-F and X13SEI-TF motherboards

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB kit expands server capacity with two 64 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 1 V operation reduces power draw per module
  • Validated for SuperMicro X13SEI-F and X13SEI-TF motherboards

128GB DDR5 ECC RDIMM kit for SuperMicro X13SEI-F/TF

This 128GB kit (2x64GB) of DDR5 4800 CL40 ECC registered DIMMs is built for SuperMicro X13SEI-F and X13SEI-TF motherboards. It targets administrators and integrators who need maximum supported capacity on these specific server platforms.

288-pin registered modules at 1.1V with Samsung.

Each 64GB module uses a 2Rx4 organisation and runs at 1.10V without a heat spreader. The registered buffer and ECC function reduce electrical load on the memory controller and correct single-bit errors, which is essential for 24/7 server workloads on the named boards.

Replaces lower-capacity

The jump is worth it when the workload demands the full 128GB registered capacity with error correction. It is not for desktop boards that cannot address registered ECC modules, nor for platforms requiring a different DDR generation or pin count.

How it compares

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

Price $3,084.99
Pricier than about 73% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $24.10 per GB
Pricier than about 69% 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 numberMR38400-924K2
Total capacity128 GB (2 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the DDR5 4800 interface cap bandwidth at PC5-38400 speeds?

Yes, the kit runs at DDR5 4800 which corresponds to the PC5-38400 bandwidth ceiling.

What motherboard slot and pin count do these 288-pin RDIMMs need to fit?

They require a standard 288-pin DDR5 DIMM slot on a SuperMicro X13SEI-F or X13SEI-TF board.

How are the two 64 GB modules installed, and what sequencing step is often missed?

Insert both modules into the matching channel slots indicated in the server manual, locking each ejector until it clicks.

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