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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS520A-E12-RS12U 192GB (12x16GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-WWJF-GMSNY MPN RS520A-E12-RS12U

A 192GB DDR5 kit of twelve 16GB ECC registered DIMMs running at 4800MHz CL40 for the ASUS RS520A-E12-RS12U server

  • Capacity192GB (12 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 192 GB total capacity from twelve 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for ASUS RS520A-E12-RS12U single-socket 2U server

ASUS RS520A-E12 192GB DDR5 Kit

This 192GB kit contains twelve 16GB DDR5 4800 registered ECC RDIMMs built for the ASUS RS520A-E12-RS12U single-socket 2U server. Each module runs at 1.1V with CL40 latency and a 1Rx8 organisation. The memory is validated for that specific platform to ensure stability in enterprise workloads.

Thermals and power in normal use

Registered DDR5 modules operate at 1.1V, reducing power draw compared with previous DDR generations. The kits ship without heat spreaders, relying on the server chassis airflow to maintain safe temperatures. ECC and registered buffering add minimal latency overhead while protecting data integrity under sustained load.

Deciding specification: 12 x 16GB DDR5 4800 RDIMM

The single factor that determines fit is whether your ASUS RS520A-E12-RS12U requires a full population of twelve 288-pin registered DIMMs at 4800 MT/s. If the board calls for a different capacity per slot, a different rank structure, or a non-registered module type, this kit will not be compatible.

Highlights

  • 192 GB total capacity from twelve 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for ASUS RS520A-E12-RS12U single-socket 2U server

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K12
Capacity192GB (12 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASUS
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content192GB (12X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 12 DDR5 4800 RDIMMs in the ASUS RS520A-E12-RS12U and which slot-population rule is commonly missed?

Power off the server, open the chassis, and seat each 16 GB module in the 288-pin slots following the motherboard's population sequence; the step most often missed is skipping the prescribed channel order, which prevents the 192 GB kit from training at 4800 MT/s.

What maintenance or replacement will the registered ECC kit need during its service life?

The modules have no moving parts or heat spreaders, so routine maintenance is limited to keeping server airflow clean; replacement is only required if a module fails ECC correction or the platform is upgraded beyond DDR5 4800.

What limit appears first when the 1Rx8 RDIMMs run sustained workloads at CL40?

The CAS latency of CL40 at 1.10 V sets the timing ceiling; under continuous load the memory controller hits this latency boundary before thermal or voltage limits become a factor.

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