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Four green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM CSE-GS7A-000NBP3 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-WFYS-76D3A MPN CSE-GS7A-000NBP3

A 128GB kit of four 32GB DDR5 4800 CL40 ECC registered DIMMs for Supermicro workstations

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB total capacity for demanding server workloads
  • DDR5 4800 speed with CL40 latency for responsive performance
  • ECC registered design protects data integrity in critical systems
  • 1V operation reduces power draw per module
  • Validated for SuperMicro SuperWorkstation SYS-751A-I compatibility

SuperMicro DDR5 4800 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR5 4800 registered DIMMs built for SuperMicro platforms. Each module runs at 1.1V with CL40 latency and includes on-die ECC for data integrity. The 288-pin RDIMM form factor fits server and workstation motherboards that require registered memory. It is intended for administrators upgrading compatible SuperMicro systems.

Suits SuperMicro SYS-751A-I and X13DAI-T owners

Buyers who need ECC registered DDR5 for these specific SuperMicro models can install this kit directly. Systems that require unbuffered UDIMMs, lower-density modules, or a different pin count cannot use these DIMMs. Builders targeting consumer desktop boards or laptops should look elsewhere because the registered design and 288-pin DDR5 layout are not compatible.

Registered 1Rx4 DDR5 at 1.1V

The modules are single-rank 1Rx4 registered RDIMMs operating at 1.10V, a combination that determines whether the motherboard memory controller will initialise them. If the platform expects a different rank configuration, voltage, or unbuffered signalling, the kit will not post. Verify the system documentation for registered DDR5 4800 support before purchase.

How it compares

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

Price $3,819.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.84 per GB
Pricier than about 85% 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 numberMR38400-314K4
Total capacity128 GB (4 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 1.1V DDR5 kit draw under sustained load?

Each module operates at 1.1V, the standard DDR5 voltage, so power draw stays low even when all four 32GB sticks run continuously in a Supermicro workstation.

What motherboard slot and chipset are required for this 288-pin RDIMM kit?

The kit needs a Supermicro motherboard with DDR5 RDIMM slots, such as the X13DAI-T or SYS-751A-I, that supports registered ECC memory at 4800 MT/s.

Can I mix these 1Rx4 CL40 modules with other DDR5 ECC RDIMMs of different rank or latency?

Mixing ranks or CAS latencies is not recommended; for stability, populate all channels with identical 1Rx4 CL40 modules like this kit.

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