We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM CSE-735D4-1K26B 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-S7TZ-T0M91 MPN CSE-735D4-1K26B

128 GB dual-channel DDR5 kit with ECC registered modules running at 4800 MT/s CL40 for Supermicro workstations

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB DDR5 capacity for heavy server workloads
  • ECC registered design protects data integrity under load
  • 4800 MT/s speed with CL40 latency for responsive throughput
  • 1 V operation reduces power draw in dense configurations
  • Validated for Supermicro SYS-531A-I and X13SRA-TF platforms

Capacity and kit layout

This NEMIX RAM kit delivers 128 GB in two 64 GB modules. It is DDR5 4800 registered ECC RDIMM memory built for the Supermicro SuperWorkstation SYS-531A-I. The kit targets IT professionals who need maximum capacity in a dual-channel server or workstation platform.

Build integration and platform fit

Each module is a 288-pin DDR5 RDIMM with 2Rx4 organisation and operates at 1.1 V. The registered design places a buffer on the command bus, reducing electrical load on the Supermicro X13SRA-TF motherboard. ECC circuitry corrects single-bit errors to protect data integrity in mission-critical workloads. No heat spreader is fitted, so airflow across the DIMM slots must be adequate.

Ideal buyer and limitations

This kit suits administrators expanding a compatible Supermicro workstation to 128 GB with validated ECC registered modules. Buyers who need unbuffered UDIMMs, lower latency timings, or memory for consumer desktop platforms should look elsewhere. Systems that do not support DDR5 RDIMM registered ECC memory cannot use this kit.

How it compares

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

Price $3,258.99
Pricier than about 74% 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 $25.46 per GB
Pricier than about 70% 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 numberMR38400-924K2
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
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 1.10V voltage of these DDR5 modules limit sustained performance in the SuperMicro SYS-531A-I?

The 1.10V operating voltage is the standard JEDEC specification for DDR5 and is fully supported by the SuperMicro SYS-531A-I workstation platform for continuous operation.

How much heat do two 64GB DDR5 4800 CL40 RDIMMs generate under all-day load in a CSE-735D4 chassis?

As standard registered DDR5 modules without heat spreaders, they rely on system airflow; the CSE-735D4 chassis fan wall provides directed cooling across the DIMM slots for sustained workloads.

Does the SuperMicro X13SRA-TF motherboard require a specific BIOS version to recognise this 2Rx4 128GB kit?

The kit is validated for the SuperMicro X13SRA-TF motherboard in the SYS-531A-I; current BIOS releases support 64GB 2Rx4 RDIMM density per slot at DDR5 4800 speeds.

More in Model-Specific Memory Upgrades

Similar items