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Green circuit board with black memory chips, no heat spreader, 288 gold pins along bottom edge

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 CL40 2Rx4 1.1V ECC RDIMM Supermicro H13DSG-O-CPU-D memory upgrade

SKU CH-78K2-Y5KDV

64 GB DDR5 4800 registered ECC RDIMM with CL40 timing and 1.1 V operation for Supermicro H13DSG-O-CPU-D motherboards

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB

Show 30 more
  • 64 GB DDR5 capacity scales server workloads without extra slots
  • 4800 MT/s speed keeps data flowing at rated throughput
  • CL40 latency and 1.1 V voltage match controller expectations exactly
  • 2Rx4 registered ECC design offloads the memory controller and corrects single-bit errors
  • 288-pin RDIMM form factor fits the Supermicro H13DSG-O-CPU-D motherboard

Supermicro H13DSG-O-CPU-D DDR5 upgrade

This 64 GB DDR5-4800 registered ECC RDIMM is built to the exact rank, voltage and timing the Supermicro H13DSG-O-CPU-D motherboard expects. It installs as a single 288-pin module and is recognised at full capacity and rated speed.

Population rules and registered architecture

The board requires 288-pin RDIMM modules; UDIMM or SODIMM variants will not fit. Registered buffering offloads the memory controller so every populated slot runs at 4800 MT/s, while on-die ECC corrects single-bit errors before they reach production workloads.

Replacing slower or smaller DDR5 RDIMMs

Swapping out lower-capacity or lower-speed DDR5 RDIMMs adds 64 GB per slot and lifts bandwidth to PC5-38400 without changing voltage. The jump is worthwhile when the manual confirms the target population order and the workload needs maximum registered DIMM density.

How it compares

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

Price $1,799.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $28.12 per GB
Pricier than about 79% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-924K1
Total capacity64 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 items64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Will the CL40 latency hold steady when all slots are populated on the Supermicro H13DSG-O-CPU-D?

Yes, the registered 2Rx4 design offloads the memory controller so every slot runs at the rated DDR5-4800 CL40 timing even in a full population.

Does the module run hot or draw extra power during 24/7 server workloads?

At 1.1 V with no heat spreader the DIMM stays within standard DDR5 power limits and relies on normal chassis airflow for cooling.

Do I need a Supermicro H13DSG-O-CPU-D motherboard for this 64 GB kit to work?

The kit is validated for that exact board; other systems must support DDR5-4800 288-pin registered ECC with 2Rx4 rank and 1.1 V operation.

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