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Two green DDR5 RDIMM modules without heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 128GB 2x64GB RDIMM ECC Registered Supermicro H13SSW memory upgrade

SKU CH-S83R-RTW0F

A 128GB DDR5 kit (2 × 64GB) running at 6400MHz with CL52 latency, 1.1V voltage, ECC and registered buffering, validated for Supermicro H13SSW motherboards

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes
  • 128 GB capacity from two 64 GB modules
  • DDR5 6400 speed with CL52 latency
  • ECC and registered design prevents data errors
  • 1 V operation at standard DDR5 voltage
  • 288-pin RDIMM form factor fits Supermicro H13SSW

Capacity and fit

This 128 GB kit delivers two 64 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.1 V operation. The modules use a 2Rx4 registered ECC design that matches the Supermicro H13SSW memory controller requirements for full-capacity recognition at rated speed.

Build integration

Each stick uses the 288-pin RDIMM form factor so it seats only in registered DIMM slots, not UDIMM or SODIMM sockets. The registered architecture buffers address and command signals, allowing the memory controller to drive a fully populated configuration without signal degradation. On-die ECC corrects single-bit errors in flight, preventing silent data corruption that could halt production workloads.

Upgrade context

This kit replaces lower-capacity or slower DDR5 RDIMMs when the server needs maximum registered memory per channel at the platform's native data rate. The jump is worthwhile when the workload demands the full 128 GB at 6400 MT/s with hardware error correction and the motherboard's qualified-vendor list includes this part number. Builders needing unbuffered DIMMs, SODIMMs, or a different voltage or rank structure should look elsewhere.

Highlights

  • 128 GB capacity from two 64 GB modules
  • DDR5 6400 speed with CL52 latency
  • ECC and registered design prevents data errors
  • 1 V operation at standard DDR5 voltage
  • 288-pin RDIMM form factor fits Supermicro H13SSW

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-924K2
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB 2X64GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 6400 MT/s speed hold under continuous server workloads?

The kit runs at DDR5 6400 (PC5-51200) with CL52 timing at 1.1 V, matching the Supermicro H13SSW memory controller spec so the rated frequency is maintained at full 128 GB capacity.

How much heat and power do two 64 GB RDIMMs draw in a fully populated chassis?

Each module operates at 1.10 V with no heat spreader; registered buffering reduces electrical load on the controller, keeping thermals and power draw within standard DDR5 RDIMM limits for 24/7 operation.

Does my Supermicro H13SSW need a specific BIOS revision or CPU to recognise this 2Rx4 kit?

The kit is validated for the H13SSW motherboard; consult the board manual for approved DIMM population order and any BIOS version notes before installation.

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