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 RDIMM sticks with black chips, no heat spreader, 288 pins

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 2Rx4 ECC RDIMM GENOAD12M3-2Q memory upgrade

SKU CH-RBE4-KCW4S

256 GB DDR5-4800 registered ECC RDIMM kit (2×128 GB, CL40, 1.1 V, 2Rx4) validated for the ASRock Rack GENOAD12M3-2Q motherboard

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 2X128GB

Show 4 more configurations
  • Full 256 GB capacity from a matched 2 x 128 GB kit
  • DDR5 4800 speed with CL40 timing for rated throughput
  • Registered ECC design offloads the controller and corrects single-bit errors
  • 2Rx4 organisation and 1.1 V voltage match the motherboard's memory rules
  • 288-pin RDIMM form factor fits the ASRock Rack GENOAD12M3-2Q slots

256GB DDR5 4800 ECC RDIMM kit

This 256GB kit contains two 128GB DDR5 4800 CL40 2Rx4 registered ECC RDIMMs that run at 1.10V. It is built for the ASRock Rack GENOAD12M3-2Q motherboard and uses the 288-pin RDIMM form factor that server memory controllers expect.

Verify motherboard manual before ordering

Check the system or motherboard manual for supported capacities, approved DIMM population order and installation steps. The board requires registered RDIMMs rather than UDIMMs or SODIMMs and the population rules must be followed for full recognition.

Replaces slower or smaller registered ECC modules

The jump is worth it when the current configuration uses lower-capacity or lower-speed registered ECC RDIMMs and the workload needs the full 256GB at the rated DDR5 4800 speed with error correction. Builders who need UDIMM or SODIMM form factors cannot use this kit.

Highlights

  • Full 256 GB capacity from a matched 2 x 128 GB kit
  • DDR5 4800 speed with CL40 timing for rated throughput
  • Registered ECC design offloads the controller and corrects single-bit errors
  • 2Rx4 organisation and 1.1 V voltage match the motherboard's memory rules
  • 288-pin RDIMM form factor fits the ASRock Rack GENOAD12M3-2Q slots

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-724K2
Capacity256GB (2 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemASRock Rack
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 2X128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What comes in the NEMIX RAM 256GB DDR5 4800 kit and is anything else needed for installation?

The kit contains two 128GB DDR5 4800 CL40 2Rx4 ECC Registered RDIMM modules, totalling 256GB. No additional parts are required for installation into compatible 288-pin server DIMM slots.

How do I decide between the available versions or capacities for this memory upgrade?

This listing is a single 256GB kit (2 x 128GB) validated for the ASRock Rack GENOAD12M3-2Q motherboard. Choose this kit when your server needs the maximum validated capacity in a two-module configuration.

What does the DDR5 4800 rating mean for real-world server performance with these modules?

The modules run at 4800 MT/s (PC5-38400) with CL40 latency at 1.10V. Registered ECC architecture lets the memory controller drive both slots at full rated speed while correcting single-bit errors on the fly.

Also in this aisle

People compared these

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