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Green rectangular DDR5 memory module with gold edge contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM RS700-E11-RS12U 128GB DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM memory upgrade

SKU CH-BFJW-VVBJ0 MPN RS700-E11-RS12U

128GB DDR5 4800 ECC registered RDIMM module with CL40 latency and 1.1V operation for ASUS RS700-E11-RS12U servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB DDR5 4800 MHz for high-capacity server workloads
  • ECC registered design protects data integrity in critical applications
  • CL40 CAS latency at 1.1 V balances speed with efficiency
  • 4Rx4 rank configuration maximises density per DIMM slot
  • 288-pin RDIMM form factor fits ASUS RS700-E11-RS12U servers

Compatible Server Memory Upgrade

This module is a 128GB DDR5 4800MHz ECC Registered DIMM built for the ASUS RS700-E11-RS12U 1U dual-socket server. It operates at 1.1V with CL40 latency and uses a 4Rx4 organisation across 288 pins. The part number MR38400-744K1 identifies the exact configuration validated for that platform.

IT Teams Maintaining Qualified Hardware

Administrators who need a single high-density stick to fill a specific slot in the supported chassis will find this module matches the vendor qualification list. Builders assembling a white-box server or populating a different motherboard should verify compatibility before purchase because this part is tailored to one system.

128GB Density in One Slot

The 128GB capacity delivered by a single 288-pin RDIMM is the decisive specification. It lets the RS700-E11-RS12U reach its maximum memory ceiling with fewer occupied slots, which the platform’s memory controller and qualified-vendor list explicitly support.

How it compares

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

Price $4,049.99
Pricier than about 77% 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 $31.64 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 lineASUS Server Motherboard Compatible Series Memory
Model nameASUS 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 systemsASUS
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

How can I confirm the 128GB DDR5 4800 module is running at CL40 1.1V after installing it in my ASUS RS700-E11-RS12U server?

Enter the BIOS on boot and verify the memory information screen shows 4800 MT/s, CAS latency 40 and 1.1 V for the installed DIMM.

What ships in the box and do I need any extra parts to add this 288-pin RDIMM to the RS700-E11-RS12U?

The package contains one 128 GB DDR5 4800 ECC registered RDIMM; no additional components are required for installation.

Which capacity and rank option should I select for the RS700-E11-RS12U if I want a single 4Rx4 module?

Choose the 128 GB 4Rx4 DDR5 4800 CL40 1.1 V RDIMM, part number MR38400-744K1, which matches the server's qualified configuration.

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