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Twelve green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 384GB (12x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-4H6Z-G4MAM MPN RS720-E11-RS12U

DDR5 4800 ECC registered server memory kit provides 384GB across twelve 32GB RDIMM modules at CL40 latency and 1.1V

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity from twelve 32 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operation reduces power draw in dense configs
  • Validated for ASUS RS720-E11-RS12U 2U dual-socket server

Server Memory Kit

This 384GB kit contains twelve 32GB DDR5 4800 registered ECC RDIMMs built for the ASUS RS720-E11-RS12U 2U dual-socket server. It targets IT teams who need maximum memory capacity in a validated configuration for virtualization or database workloads.

DDR5 4800 Registered Limits

The modules run at 4800 MT/s with CL40 latency at 1.1V using a 288-pin RDIMM form factor. Registered buffering and ECC are mandatory for this platform; unbuffered or non-ECC DIMMs will not function in the server.

12-Slot Population

The kit fills all twelve memory slots with 1Rx4 Samsung, Micron or Hynix ICs to deliver the full 384GB capacity. Systems with fewer than twelve slots or a different memory architecture cannot use this kit as supplied.

How it compares

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

Price $11,169.99
Pricier than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $29.09 per GB
Pricier than about 82% 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 numberMR38400-314K12
Total capacity384 GB (12 × 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 systemsASUS
In the box
Included items384 GB (12 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 12-module 384GB kit or a smaller capacity for my ASUS RS720-E11-RS12U?

The 384GB kit fills all 12 DIMM slots with 32GB modules, delivering maximum registered ECC capacity for the dual-socket server.

What does the DDR5 4800 CL40 rating mean once the modules are installed in the server?

The memory runs at 4800 MT/s with a CAS latency of 40 cycles, providing the standard JEDEC bandwidth and timing for registered DDR5 in this platform.

How does the 288-pin RDIMM interface and PC5-38400 standard limit real-world performance?

The 288-pin registered DDR5 form factor caps transfer rate at 4800 MT/s (PC5-38400) and requires ECC registered operation, which the ASUS server chipset enforces.

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