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Two green DDR5 RDIMM modules without heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 2Rx4 ECC Registered RDIMM memory upgrade for GIGABYTE MZ73-LM0

SKU CH-BERB-5E0M5

128GB DDR5 4800 ECC registered RDIMM kit built to the exact rank, voltage and timing the GIGABYTE MZ73-LM0 requires

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

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  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 latency at 1.1 V operating voltage
  • 2Rx4 registered ECC design for error correction
  • 288-pin RDIMM form factor matched to GIGABYTE MZ73-LM0

Exact-Match Server Memory Kit

This NEMIX RAM kit delivers 128GB of DDR5 4800 memory as two 64GB Registered ECC RDIMMs. It is built to the precise 2Rx4 rank structure, CL40 timing, and 1.10V voltage that the GIGABYTE MZ73-LM0 motherboard expects for full-capacity recognition at rated speed.

Registered ECC Architecture

The registered design buffers address and command signals so the memory controller can drive a fully populated configuration without signal degradation. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned downtime in production workloads.

Verify Platform Population Rules

Server memory support varies by specific model and BIOS revision. Consult the GIGABYTE MZ73-LM0 manual for approved DIMM population order, maximum supported capacity per slot, and required installation sequence before ordering this 288-pin RDIMM kit.

How it compares

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

Price $3,669.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.67 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 numberMR38400-924K2
Total capacity128 GB (2 × 64 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 systemsGIGABYTE
In the box
Included items128 GB 2 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the 1.1V voltage or CL40 timing on these DDR5 modules change as the kit ages?

The 1.10V operating voltage and CL40 CAS latency are fixed electrical specifications of the DDR5 RDIMM design; they do not drift with age, so no recalibration or voltage adjustment is needed over the module's service life.

What limits sustained throughput first on the GIGABYTE MZ73-LM0 with this 2Rx4 registered ECC kit?

The memory controller on the MZ73-LM0 and the DDR5-4800 (PC5-38400) data rate set the maximum sustained bandwidth; the 2Rx4 registered architecture keeps every slot at full speed, so the controller's peak transfer rate is the first ceiling you reach.

How much extra heat or power does the 128GB kit add when the server runs 24/7?

Each 64GB DDR5 RDIMM runs at 1.10V without a heat spreader, so total power draw stays at the DDR5-4800 spec level; the registered buffer reduces controller load, keeping thermals comparable to smaller registered kits under continuous operation.

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