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Two green DDR5 RDIMM modules with black chips, no heat spreader, 288-pin form factor

NEMIX RAM

NEMIX RAM RS700-E11-RS4U 256GB (2x128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-KGFC-WCCA9 MPN RS700-E11-RS4U

A 256GB registered DDR5 kit with ECC, 4800 speed and CL40 latency for ASUS RS700-E11-RS4U servers

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity with two 128GB modules for high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 for fast data throughput
  • ECC registered RDIMM design detects and corrects memory errors automatically
  • 1V operating voltage reduces power draw in dense configurations
  • Validated for ASUS RS700-E11-RS4U 1U dual-socket server compatibility

256 GB DDR5 ECC RDIMM kit

This kit provides 256 GB of DDR5 4800 registered ECC memory in two 128 GB modules. It is built for the ASUS RS700-E11-RS4U dual-socket 1U server and targets IT teams running virtualisation, databases or high-throughput workloads that require maximum capacity per slot.

288-pin registered design with 4Rx4 organisation

The modules use a 288-pin RDIMM form factor with 4Rx4 rank architecture and operate at 1.10 V. Registered buffering reduces electrical load on the memory controller, allowing dense population in the server’s limited DIMM slots while maintaining signal integrity at 4800 MT/s.

CL40 latency at 1.1 V nominal voltage

Rated CAS latency is CL40 at the standard DDR5 4800 speed grade. The low 1.1 V operating voltage helps contain power draw and heat output inside a 1U chassis where airflow is constrained, supporting stable operation under sustained load without additional cooling hardware.

Highlights

  • 256GB total capacity with two 128GB modules for high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 for fast data throughput
  • ECC registered RDIMM design detects and corrects memory errors automatically
  • 1V operating voltage reduces power draw in dense configurations
  • Validated for ASUS RS700-E11-RS4U 1U dual-socket server compatibility

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASUS
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does DDR5 4800 (PC5-38400) cap the memory bus at 4800 MT/s on this server?

Yes, the kit is rated for DDR5 4800 which runs at 4800 MT/s on the RS700-E11-RS4U memory controller.

What physical slot and module dimensions are required for the 288-pin RDIMMs?

Each 128 GB module uses a standard 288-pin DDR5 RDIMM form factor that fits the server’s registered DIMM sockets.

How are the two 128 GB sticks installed, and which step is often missed?

Populate the two modules in the correct channel pair per the ASUS manual and ensure each RDIMM clicks fully into its 288-pin socket.

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