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
Two green DDR5 ECC RDIMM modules side by side

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 ECC RDIMM memory upgrade for ASRock IMB-1900/1902

SKU CH-DW03-HP3FR

256 GB DDR5 4800 ECC registered DIMM kit with two 128 GB modules for ASRock IMB-1900 and IMB-1902 industrial motherboards

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity across two 128GB modules for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for fast data throughput
  • ECC registered design with 4Rx4 organisation protects data integrity in critical applications
  • 1V operating voltage reduces power draw while maintaining CL40 latency
  • 288-pin RDIMM form factor validated for ASRock IMB-1900 and IMB-1902 motherboards

Capacity and Configuration

This 256 GB kit ships as two 128 GB DDR5 registered DIMMs built for ASRock Industrial IMB-1900 and IMB-1902 motherboards. The modules use ECC RDIMM technology to protect data integrity in server and workstation environments.

Upgrade Path

Replaces lower-capacity or non-ECC DDR5 memory when registered modules are required by the platform. The jump is worth it for workloads that exceed the limits of smaller kits and demand error correction without changing motherboard infrastructure.

Headroom and Limits

Comfortably handles large virtualisation clusters, in-memory databases and heavy multi-threaded compute jobs that benefit from 256 GB of addressable space. Runs out when applications need memory speeds above 4800 MT/s or capacities beyond the two-slot population supported by the target boards.

Highlights

  • 256GB total capacity across two 128GB modules for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for fast data throughput
  • ECC registered design with 4Rx4 organisation protects data integrity in critical applications
  • 1V operating voltage reduces power draw while maintaining CL40 latency
  • 288-pin RDIMM form factor validated for ASRock IMB-1900 and IMB-1902 motherboards

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 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 SystemASRock Industrial
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB (2 x 128GB) DDR5 4800MHz PC5-38400 4Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the EATX IMB-1900 or IMB-1902 motherboard slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the memory slots on both the ASRock IMB-1900 and IMB-1902 industrial motherboards.

Do I need to configure BIOS settings for the 4Rx4 ECC registered modules to initialise correctly?

Install both 128GB modules in the designated DDR5 slots; the registered ECC design requires no extra BIOS steps beyond standard memory detection.

Should I plan to replace the modules if the server workload exceeds the CL40 latency rating?

The CL40 latency is a fixed specification of these 4800MHz modules; they do not degrade or require replacement due to workload intensity.

Also in this aisle

People compared these

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