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Green DDR5 RDIMM module with black chips, no heat spreader, 288 pins

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 4Rx4 ECC RDIMM SuperMicro memory upgrade

SKU CH-ZZBY-KSTG8

A 128 GB DDR5 4800 registered ECC RDIMM built for Supermicro servers with 4Rx4 organisation and 1.1 V operation

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity handles large server workloads
  • DDR5 4800 speed delivers high data throughput
  • CL40 CAS latency supports responsive operation
  • ECC registered design protects data integrity
  • 10 V voltage enables efficient power use

128GB DDR5 4800 ECC RDIMM

This 128GB DDR5 4800 CL40 registered DIMM targets Supermicro servers and workstations that require error-correcting memory. The single-module design suits administrators who need maximum capacity per slot. ECC and registered operation protect data integrity in mission-critical workloads. It runs at 1.1V for standard DDR5 power efficiency.

Capacity and headroom for dense configurations

One 128GB 4Rx4 module delivers high density, letting a board with limited slots reach large memory footprints. The DDR5 4800 speed (PC5-38400) handles virtualization, database caching and large dataset processing. CAS latency of CL40 and CL46 timings reflect registered ECC optimisation. Bandwidth runs out before capacity in heavily threaded compute tasks.

Fits Supermicro DDR5 RDIMM slots

The 288-pin DDR5 RDIMM form factor installs directly into compatible Supermicro motherboards that support registered ECC memory. No heat spreader keeps the profile low for tight server chassis. Major OEM Samsung, Micron or Hynix DRAM ensures validated compatibility. Builders needing unbuffered or non-ECC memory must choose a different module type.

How it compares

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

Price $3,589.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.05 per GB
Pricier than about 79% 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 numberMR44800-744K1
Total capacity128 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 items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will this 128 GB DDR5 4800 CL40 4Rx4 ECC RDIMM run alongside existing DDR5 RDIMMs of different capacity in my Supermicro server?

Mixing capacities is possible on DDR5 platforms if all modules run at the same 4800 MT/s speed and 1.1 V voltage; the memory controller will train to the slowest common timing, so keep CAS latency and rank configuration consistent for best stability.

How can I confirm the module is operating at 4800 MT/s with ECC active after installation?

Enter the server BIOS or use a tool like dmidecode or IPMI to verify the reported speed shows 4800 MT/s, voltage reads 1.1 V, and ECC status is enabled for the 128 GB DIMM.

Does the package include only the single 128 GB 288-pin DDR5 RDIMM, or are any cables, brackets or thermal pads supplied?

The box contains one 128 GB 288-pin DDR5 4800 CL40 4Rx4 ECC RDIMM and nothing else; no cables, brackets or thermal pads are included.

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