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
Single green DDR5 RDIMM module, 288 pins, no heat spreader, 128GB label

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM 288-Pin memory upgrade

SKU CH-292G-JZ6MM

A 128 GB DDR5 registered ECC module running at 4800 MT/s with CL40 latency and 1.1 V operation for compatible ASUS servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity supports heavy server workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design protects data integrity in mission-critical systems
  • 10 V operation reduces power draw in dense configurations
  • 4Rx4 288-pin RDIMM fits ASUS RS720Q-E11-IM immersion-cooled servers

128 GB DDR5-4800 ECC RDIMM

This single 128 GB registered DDR5 module runs at 4800 MT/s with CL40 latency and 1.1 V operation. It is built for ASUS RS720Q-E11-IM high-density immersion-cooling servers that require 288-pin ECC RDIMM memory. The 4Rx4 organisation and Samsung, Micron or Hynix chips target maximum capacity per slot in enterprise chassis.

Suited for memory-bound server workloads

IT teams expanding ASUS 2U4N platforms with dense, error-correcting memory will match the qualified part number MR38400-744K1. Builders needing unbuffered UDIMMs, non-ECC modules, lower capacities per DIMM or consumer motherboard compatibility should select a different product line.

Sustained load behaviour in immersion cooling

Registered buffering and on-die ECC maintain data integrity during continuous multi-threaded compute across all ranks. The 1.1 V DDR5 baseline keeps power draw predictable inside the sealed coolant loop, while the 4Rx4 density reduces the number of active modules required for 720 GB-plus system configurations.

How it compares

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

Price $4,149.99
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 $32.42 per GB
Pricier than about 90% 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 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

Will this 128GB DDR5 4800 module install in my ASUS RS720Q-E11-IM server?

Yes, the module is validated for the ASUS RS720Q-E11-IM immersion-cooling server and uses the 288-pin DDR5 RDIMM form factor required by that platform.

Can I mix this 4Rx4 ECC RDIMM with lower-rank DDR5 modules already in the system?

The server's memory controller supports mixed-rank populations; follow the ASUS RS720Q-E11-IM population rules for 4Rx4 modules to maintain stability.

How do I confirm the module runs at 4800 MT/s with CL40 latency after installation?

Check the BIOS memory information or OS tools such as dmidecode; they should report DDR5 4800 (PC5-38400) speed and CAS latency 40.

More in Model-Specific Memory Upgrades

Similar items