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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 128GB 8x16GB DDR5 6400 CL52 1.1V ECC RDIMM Supermicro H13SSW memory upgrade

SKU CH-J3H0-CV6RH

An eight-module 128 GB DDR5 kit running at 6400 MT/s with CL52 latency, 1.1 V ECC registered RDIMMs validated for the Supermicro H13SSW

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact DDR5-6400 spec match ensures full-speed recognition
  • 128 GB kit fills eight slots for maximum capacity
  • Registered ECC design prevents silent data corruption
  • 1 V operation keeps power draw low
  • Built for Supermicro H13SSW motherboard

Exact-match DDR5-6400 kit for Supermicro H13SSW

This NEMIX RAM kit delivers 128 GB across eight 16 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.10 V operation. Registered ECC construction with 1Rx8 organisation matches the memory controller requirements of the Supermicro H13SSW motherboard so the full capacity is recognised at rated speed.

Suited for administrators populating every slot

The registered design offloads the memory controller allowing all eight slots to run fully populated while ECC corrects single-bit errors on the fly. Buyers who need unbuffered UDIMMs, SODIMMs, lower capacities, or modules validated for a different server platform should look elsewhere.

Straightforward 288-pin RDIMM installation

Modules seat in the standard 288-pin DDR5 RDIMM sockets; follow the motherboard manual for the approved population order to avoid a no-post condition. The most common issue is installing DIMMs in the wrong sequence or mixing ranks, which prevents the system from recognising the full 128 GB.

How it compares

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

Price $4,137.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.33 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 numberMR51200-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What motherboard must I already have for this 128GB kit to be recognized at full capacity and rated speed?

The kit is spec-matched for the Supermicro H13SSW motherboard and requires that board's 288-pin RDIMM slots to run at DDR5-6400 with CL52 timings.

How do the 1Rx8 registered ECC modules behave when installed alongside other registered DIMMs already in the server?

Registered architecture offloads the memory controller so every slot runs fully populated at full capacity while ECC corrects single-bit errors on the fly.

How can I verify the kit is running at its rated DDR5-6400 CL52 1.10V settings after installation?

Check the BIOS or UEFI memory information screen — it should show all eight 16GB modules at 6400 MT/s, CAS latency 52, and 1.10 V.

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