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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 4800 CL40 1.1V ECC Registered RDIMM Supermicro H13SST-G

SKU CH-CGWT-JXY53

A 512GB kit of four 128GB DDR5 4800 CL40 1.1V ECC Registered RDIMM modules validated for the Supermicro H13SST-G motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

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  • 512 GB total capacity from four 128 GB modules for maximum memory density
  • DDR5 4800 speed with CL40 latency delivers rated server performance
  • Registered ECC architecture corrects single-bit errors and supports full population
  • 1 V operation matches the platform's memory controller specification
  • 288-pin RDIMM form factor verified for Supermicro H13SST-G motherboard

System Specific Memory Kit

This NEMIX RAM kit provides 512GB of DDR5 memory across four 128GB registered ECC RDIMMs. It operates at 4800MHz with CL40 latency and 1.1V power draw. The modules use a 288-pin form factor and 2Rx4 rank organisation for full-capacity recognition on the target platform.

Who Should Buy This

Server administrators upgrading a Supermicro H13SST-G motherboard will receive the exact rank, voltage, and timing the board's memory controller expects. Builders needing unbuffered UDIMMs, SODIMMs, non-ECC memory, or lower capacities should select a different kit.

Deciding Specification

The registered ECC RDIMM architecture with 2Rx4 organisation is the single specification that determines compatibility; the motherboard requires this buffered design to run all slots fully populated at rated speed.

How it compares

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

Price $14,706.99
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 $28.72 per GB
Pricier than about 81% 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 numberMR38400-724K4
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
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does my motherboard need registered DDR5 slots for this kit?

Yes, the 288-pin DDR5 RDIMM modules only fit motherboards wired for registered DDR5 memory such as the Supermicro H13SST-G

Can I mix these 2Rx4 modules with other ranks in the same server?

Mixing ranks is not recommended; the board's memory-population rules expect identical 2Rx4 registered DIMMs for full 512GB capacity at DDR5-4800

How do I confirm the kit runs at 4800 MT/s with CL40 after installation?

Check the BIOS memory information or OS tools such as dmidecode; they should report DDR5-4800, PC5-38400, 1.1 V and CL40 timings

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