We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Eight green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM RS520A-E12-RS24U 1TB (8×128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-KBZM-7GW0D MPN RS520A-E12-RS24U

Eight registered DDR5 modules deliver 1 TB of ECC server memory at 4800 MT/s with CL40 latency

  • Capacity1TB (8 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 1TB capacity across eight 128GB modules for high-density server workloads
  • DDR5 4800 speed with CL40 latency delivers responsive registered memory performance
  • ECC registered design protects data integrity in mission-critical environments
  • 1V operation reduces power draw per module under sustained load
  • Validated for ASUS RS520A-E12-RS24U 2U server compatibility

System-specific DDR5 kit

This 1 TB kit contains eight 128 GB DDR5 4800 CL40 registered ECC RDIMMs built for the ASUS RS520A-E12-RS24U single-socket 2U server. It targets administrators who need maximum registered capacity in that exact platform.

1.1 V registered operation

Each module runs at 1.10 V with a 4Rx4 organisation, so the registered buffer absorbs electrical load instead of the CPU memory controller. The kit has no heat spreaders, relying on the server’s directed airflow to keep temperatures in check.

Eight-module population

Populating all twelve DIMM slots with this 8×128 GB kit delivers the full 1 TB capacity the motherboard supports. Buyers who need more than twelve modules or non-registered DIMMs must choose a different platform.

Highlights

  • 1TB capacity across eight 128GB modules for high-density server workloads
  • DDR5 4800 speed with CL40 latency delivers responsive registered memory performance
  • ECC registered design protects data integrity in mission-critical environments
  • 1V operation reduces power draw per module under sustained load
  • Validated for ASUS RS520A-E12-RS24U 2U server compatibility

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K8
Capacity1TB (8 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 Content1TB (8X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install these 288-pin DDR5 RDIMM modules into the RS520A-E12-RS24U server?

Power down the server and open the chassis. Align each module's notch with the slot key and press firmly until both latches click. Follow the motherboard manual for the correct population order across the 12 or 24 slots.

What maintenance or replacement will the 1.1V ECC registered DIMMs need over time?

ECC corrects single-bit errors on the fly. If a module develops uncorrectable faults the system will log the event; replace the affected 128GB stick. No periodic maintenance is required beyond keeping airflow clear.

At what point does the CL40 4800 MT/s bandwidth limit appear under sustained load?

The 4Rx4 organisation and PC5-38400 rating set the peak throughput. Under continuous heavy traffic the memory controller hits this bandwidth ceiling before latency becomes the bottleneck.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.