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Four green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM memory upgrade for ASRock Rack GENOA2D24G-2L+

SKU CH-YEFQ-D2FDT

256 GB kit of four 64 GB DDR5-4800 ECC registered RDIMMs at CL40 and 1.1 V, validated for the ASRock Rack GENOA2D24G-2L+ motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 4 more
  • 256 GB total capacity lets your server handle large workloads with four 64 GB modules
  • DDR5 4800 speed matches the motherboard spec for full-rated performance
  • Registered ECC design offloads the memory controller and corrects single-bit errors on the fly
  • 1 V operation meets the board's voltage requirement for stable, low-power operation
  • Exact-fit 288-pin RDIMM kit validated for ASRock Rack GENOA2D24G-2L+ compatibility

Exact-match server upgrade

This NEMIX RAM kit delivers 256GB across four 64GB DDR5 4800 RDIMM modules built for the ASRock Rack GENOA2D24G-2L+ motherboard. Registered ECC architecture with 2Rx4 organisation and CL40 timing matches the board's memory controller requirements for full-capacity operation at rated speed.

Installation notes

The 288-pin RDIMM form factor fits only Registered DIMM slots; UDIMM or SODIMM sockets will not accept these modules. Server boards often mandate a specific population sequence, so the manual must be consulted before seating all four sticks to avoid a no-post condition.

DDR5 practical limits

DDR5 4800 transfers data at 38400 MT/s while drawing 1.10V, yet registered buffering adds one cycle of latency versus unbuffered modules. Maximum capacity per channel and total system memory remain constrained by the motherboard's qualified vendor list and BIOS revision, not by the kit itself.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $7,286.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.46 per GB
Pricier than about 80% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I verify the kit is running at DDR5 4800 CL40 1.1V after installation?

Enter the server BIOS and confirm each of the four slots shows a 64 GB RDIMM at 4800 MT/s with CL40 timings and 1.10 V; the total should read 256 GB.

What comes in the package and is anything else required?

The box contains the four 64 GB DDR5 4800 CL40 2Rx4 ECC RDIMM modules; no extra parts or cables are needed for installation.

Which capacity kit matches the ASRock Rack GENOA2D24G-2L+ memory population rules?

This 256 GB (4 × 64 GB) kit is the exact-match upgrade validated for the board; other capacities are not offered for this model.

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