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Two green DDR5 RDIMM sticks, bare chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade for RS520A-E12-RS12U

SKU CH-58R9-DZ3YD MPN RS520A-E12-RS12U

64 GB dual-channel DDR5 kit at 4800 MT/s with ECC and registered buffering for the ASUS RS520A-E12-RS12U server

  • Capacity64GB (2 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 64 GB capacity with two 32 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM for server reliability
  • CL40 latency at 1.1 V operating voltage
  • 288-pin 1Rx4 design built for ASUS RS520A-E12-RS12U

System-Specific DDR5 ECC RDIMM Kit

This 64 GB kit contains two 32 GB DDR5 4800 CL40 registered DIMMs built for the ASUS RS520A-E12-RS12U single-socket 2U server. ECC and registered buffering protect data integrity under sustained enterprise workloads.

Check DIMM Slots and Firmware

Verify the server has at least two free 288-pin DDR5 RDIMM slots and that the BIOS is updated to support 1Rx4 modules at 1.1 V. The kit is validated only for the named ASUS model; other platforms may not post or may run at reduced speeds.

Two-Module Kit Enables Dual-Channel Operation

Installing the matched pair populates two channels, doubling memory bandwidth compared with a single DIMM. No heat spreaders are included, so airflow within the 2U chassis must meet ASUS thermal guidelines for bare modules.

Highlights

  • 64 GB capacity with two 32 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM for server reliability
  • CL40 latency at 1.1 V operating voltage
  • 288-pin 1Rx4 design built for ASUS RS520A-E12-RS12U

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K2
Capacity64GB (2 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 Content64GB (2X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include two 32 GB modules or do I need to buy a second stick separately?

The kit contains two 32 GB modules for a total of 64 GB, so no additional sticks are required.

Should I choose the CL40 4800 MHz version or a lower-latency alternative for this server?

This kit is specified at CL40 and 4800 MHz, matching the ASUS RS520A-E12-RS12U qualified configuration.

What does the 4800 MT/s rating mean once the memory is installed in the RS520A-E12-RS12U?

The modules will operate at 4800 MT/s with CL40 timings at 1.1 V, delivering the rated PC5-38400 bandwidth in the qualified server.

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