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
Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-91RT-K8SH3

Four 16 GB DDR5 4800 ECC registered DIMMs add 64 GB to compatible Supermicro servers

  • Capacity64GB (4 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • ECC protection prevents data corruption in critical workloads
  • 64GB capacity across four 16GB modules supports heavy multitasking
  • DDR5 4800 speed delivers high bandwidth for server tasks
  • Registered design with CL40 latency ensures stable signal integrity
  • 1V operation reduces power draw in dense configurations

Capacity and purpose

This 64GB kit supplies four 16GB DDR5 4800 registered DIMMs built for Supermicro UP SuperServer SYS-111C-NR and SYS-521C-NR platforms as well as the X13SEDW-F motherboard. It targets administrators who need error-correcting memory for mission-critical workloads.

Registered ECC advantage

Registered buffering reduces electrical load on the memory controller, while on-die ECC corrects single-bit errors before they reach the CPU. The combination keeps data integrity high during sustained server tasks without requiring additional software.

DDR5 4800 constraints

The modules run at 1.1V with CL40 latency and a single-rank 1Rx8 organisation, limiting maximum throughput to the PC5-38400 standard. Systems that demand higher frequencies or lower latencies cannot exceed this specification.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • 64GB capacity across four 16GB modules supports heavy multitasking
  • DDR5 4800 speed delivers high bandwidth for server tasks
  • Registered design with CL40 latency ensures stable signal integrity
  • 1V operation reduces power draw in dense configurations

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K4
Capacity64GB (4 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (4X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 1Rx8 DDR5 RDIMM layout affect future capacity upgrades?

Each module is a single-rank 16 GB stick, so the four installed DIMMs occupy four slots; adding more capacity later will require free slots or replacing existing modules.

What thermal limit appears first when the kit runs at 4800 MT/s continuously?

The modules operate at 1.10 V without heat spreaders, so sustained load will hit the DRAM junction temperature threshold before any voltage or power limit is reached.

How much power does the 64 GB kit draw at 1.1 V under all-day load?

At 1.1 V the four registered DIMMs typically draw roughly 13 W total when fully stressed, making cooling airflow the main design consideration.

Also in this aisle

People compared these

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