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Green rectangular DDR5 RDIMM module with black chips and gold contacts

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 ECC RDIMM CL40 1.1V 288-Pin 4Rx4 SuperMicro X13SEW-TF X13SEW-F

SKU CH-AECW-0ZJQE

A 128GB DDR5 4800 ECC registered DIMM with CL40 latency, 1.1V operation and 4Rx4 organisation for SuperMicro X13SEW motherboards

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity scales memory-intensive workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 10 V operation reduces power draw
  • Validated for SuperMicro X13SEW-TF and X13SEW-F

128GB DDR5 4800 ECC RDIMM for SuperMicro X13SEW

This 128GB registered DDR5 module delivers error-correcting memory for SuperMicro X13SEW-TF and X13SEW-F motherboards. It operates at 4800MHz with CL40 latency and 1.10V. The single 4Rx4 stick uses major OEM chips from Samsung, Micron or Hynix and has no heat spreader.

DDR5 4800 registered ECC practical limits

DDR5 4800 registered ECC memory runs at the JEDEC base data rate of 4800MT/s with PC5-38400 bandwidth. Registered buffering adds one clock cycle of address/command delay, which is standard for server stability. The 4Rx4 organisation increases electrical loading per channel, so maximum populated speed may drop below 4800MHz depending on the motherboard's memory controller and slot count.

Verify motherboard slot count and population rules

Before ordering, confirm how many 288-pin DDR5 RDIMM slots your X13SEW board provides and which population sequence the manual requires for 4Rx4 modules. Some server boards limit the number of quad-rank DIMMs per channel or require specific slot filling order to maintain 4800MHz operation. Check the qualified vendor list for the exact part number MR38400-744K1.

How it compares

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

Price $3,531.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.59 per GB
Pricier than about 77% 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 numberMR38400-744K1
Total capacity128 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 items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I pick the 128 GB single module or look for a smaller capacity kit for my SuperMicro X13SEW-TF?

The 128 GB single module fills one slot and leaves room for expansion, so choose it if you need maximum capacity now and plan to add more later.

What does the 4800 MT/s rating deliver once the module is installed in a running server?

It provides a peak bandwidth of 38400 MB/s at the standard 1.1 V, giving the throughput the platform expects for DDR5 workloads.

Is the 288-pin DDR5 RDIMM interface fully compatible with the X13SEW-TF memory controller?

Yes, the registered 288-pin DDR5 RDIMM matches the board's DDR5 slots and the registered signal buffering the platform requires.

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