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Four green DDR5 RDIMM sticks bare black chips silver contacts

NEMIX RAM

NEMIX RAM CSE-735D4-1K26B 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-GAGX-0H89J MPN CSE-735D4-1K26B

128 GB registered DDR5 kit (four 32 GB modules) running at 4800 MHz CL40 with ECC, built for Supermicro SuperWorkstation SYS-531A-I and X13SRA-TF platforms

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered design detects and corrects data errors
  • Low 1.10 V operation reduces server power draw
  • Validated for Supermicro SYS-531A-I and X13SRA-TF workstations

NEMIX RAM 128GB DDR5 4800 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR5 4800 modules built as registered ECC RDIMMs. It is designed for Supermicro SuperWorkstation SYS-531A-I and X13SRA-TF platforms that require registered memory with error correction.

Suited for servers and workstations needing

Systems that require unbuffered UDIMM modules or non-ECC memory cannot use this registered RDIMM kit. Buyers whose motherboards do not support registered DDR5 ECC should look at a different memory type.

Registered ECC RDIMM form factor decides

The modules are 288-pin DDR5 RDIMMs with CL40 latency, 1.10V operation and 1Rx4 organisation. Only motherboards that accept registered ECC DDR5 RDIMMs can install this kit.

How it compares

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

Price $3,614.99
Pricier than about 75% 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 $28.24 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 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

Does the 128GB kit contain four 32GB modules or do I need to buy additional sticks?

The package includes four 32GB DDR5 RDIMM modules for a total of 128GB; no extra sticks are required.

Should I choose the CL40 4800MHz version or a different latency kit for my Supermicro SYS-531A-I?

This kit is specified at CL40 and 4800MHz, matching the supported speed for the Supermicro SYS-531A-I workstation.

Will the registered ECC design with 1Rx4 organisation work in a standard desktop motherboard?

Registered ECC RDIMMs require a server or workstation chipset that supports registered memory; they will not function in typical desktop boards.

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