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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1.5TB (12x128GB) DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM SuperMicro Server Memory Upgrade

SKU CH-YFQ3-2V87Q

A 1.5 TB DDR5 kit of twelve 128 GB registered ECC modules running at 4800 MT/s with CL40 latency and 1.1 V for SuperMicro CloudDC SuperServer systems

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 5 TB total capacity from twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity in servers
  • Low 1.1 V operating voltage reduces power draw
  • 288-pin CL40 4Rx4 layout fits SuperMicro CloudDC SuperServer systems

Server Memory Kit for SuperMicro CloudDC

This 1.5TB kit contains twelve 128GB DDR5 modules built for SuperMicro CloudDC SuperServer systems including SYS-621C-TN12R, SYS-611C-TN4R and SYS-121C-TN2. Registered ECC RDIMM design targets enterprise workloads that demand data integrity and high capacity.

4Rx4 Registered ECC at DDR5 4800 CL40

Each module runs at 4800MHz (PC5-38400) with CAS latency 40 and 1.1V operation. The 4Rx4 organisation and registered buffer suit motherboards qualified for this rank and voltage; systems requiring different rank or unbuffered DIMMs will not accept this kit.

Suits SuperMicro CloudDC density upgrades

Ideal for administrators expanding memory in the listed SuperServer platforms where 128GB RDIMMs are validated. Not for workstations or consumer boards that lack registered ECC support, nor for builds needing lower-capacity modules or different DDR5 speeds.

How it compares

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

Price $48,554.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $32.37 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K12
Total capacity1.5 TB (12 × 128 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 items1.5 TB (12 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MHz speed mean once the 12 modules are installed in a SuperMicro server?

The kit runs at DDR5 4800 with CL40 timing and 1.1 V, delivering the rated PC5-38400 data rate across all 12 slots when the platform supports it.

How does the DDR5 4800 interface and PC5-38400 rating limit real-world throughput?

DDR5 4800 sets the maximum transfer rate at 4800 MT/s per pin; PC5-38400 is the corresponding peak bandwidth designation for the registered ECC modules in this kit.

What physical requirements must the server meet to accept these 288-pin 4Rx4 RDIMMs?

Each module is a 288-pin DDR5 RDIMM with 4Rx4 organisation and no heat spreader, so the motherboard needs 12 DDR5 RDIMM slots and clearance for standard-height sticks.

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