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Four green 288-pin DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-WFA5-R688J MPN RS720A-E12-RS12

Four-module kit provides 128 GB of DDR5 4800 CL40 ECC registered memory for ASUS RS720A-E12-RS12 servers

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB kit expands server capacity with four 32 GB modules
  • DDR5 4800 speed delivers high throughput for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 1 V operation lowers power consumption for continuous use
  • Validated for ASUS RS720A-E12-RS12 dual-processor servers

ASUS Server Memory Kit

This 128GB kit contains four 32GB DDR5 RDIMM modules built for ASUS 2U dual-processor server model RS720A-E12-RS12. Each module runs at 4800MHz with CL40 latency and 1.1V operation. The registered ECC design targets data integrity in mission-critical workloads.

DDR5 4800 Registered ECC Limits

DDR5 4800 registered ECC memory requires a platform that supports RDIMM topology and the PC5-38400 data rate. Systems limited to UDIMM slots or lower DDR5 speeds cannot use this kit. Mixing with non-registered modules will prevent boot.

1Rx4 Rank Configuration Decides Fit

The 1Rx4 organisation determines electrical loading on the memory controller. Boards qualified for 1Rx4 at this capacity will run the full 128GB; platforms validated only for dual-rank or x8 configurations may not support the kit.

Highlights

  • 128 GB kit expands server capacity with four 32 GB modules
  • DDR5 4800 speed delivers high throughput for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 1 V operation lowers power consumption for continuous use
  • Validated for ASUS RS720A-E12-RS12 dual-processor servers

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASUS
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 128 GB kit or a smaller capacity for my ASUS RS720A-E12-RS12?

The 128 GB kit provides four 32 GB modules and fills the supported slots for maximum memory density in this dual-processor server.

What does the DDR5 4800 CL40 rating deliver in the RS720A-E12-RS12?

The modules run at 4800 MT/s with CAS latency 40, giving the server its rated memory bandwidth for virtualisation and database workloads.

How does the 288-pin DDR5 RDIMM interface limit performance in this server?

The registered DDR5 RDIMM interface operates at 1.1 V and is electrically matched to the RS720A-E12-RS12 memory controller, so the kit runs at the platform's native 4800 MT/s speed.

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