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Four green DDR5 RDIMM modules with black chips no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 1.1V ECC RDIMM Server Memory Kit

SKU CH-RSSC-5VAMN

512GB quad-channel DDR5 kit with four 128GB registered ECC modules at 4800 MT/s, CL40 and 1.1V for SuperMicro IoT SuperServer systems

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity across four 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.1 V operating voltage reduces power draw
  • Validated for Supermicro SYS-211SE-31DS and SYS-211SE-31AS systems

Capacity and Configuration

This 512 GB kit contains four 128 GB DDR5 RDIMM modules built for Supermicro server platforms. It targets administrators who need maximum registered ECC capacity in a single validated package.

Speed and Voltage Headroom

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10 V. Registered buffering and 4Rx4 organisation support dense configurations, while the standard JEDEC voltage leaves no margin for overclocking headroom.

Compatibility and Package Contents

The kit is qualified for Supermicro IoT SuperServer SYS-211SE-31DS, SYS-211SE-31AS and X31SEED-SF systems. The box delivers only the four registered DIMMs; no heat spreaders, cables or software utilities are included.

How it compares

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

Price $15,096.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.49 per GB
Pricier than about 84% 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 numberMR38400-744K4
Total capacity512 GB (4 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these four 128 GB DDR5 4800 CL40 RDIMMs run alongside my existing DDR5 4800 ECC RDIMMs in the same Supermicro server?

All modules must share identical speed, voltage, rank and ECC registration; mixing different ranks or latencies can prevent the system from posting.

How can I verify the kit is operating at DDR5 4800 CL40 1.1 V with ECC active after installation?

Enter the BIOS or use a tool such as dmidecode to confirm each DIMM reports 4800 MT/s, CL40, 1.10 V, registered ECC and 4Rx4 organisation.

What exactly ships in the box and is any extra hardware required?

The package contains four 128 GB 288-pin DDR5 RDIMMs for a total of 512 GB; no heat spreaders, cables or additional parts are included.

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