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 in a row

NEMIX RAM

NEMIX RAM DDR5 6400 ECC RDIMM 256GB (4x64GB) CL52 1.1V 2Rx4 memory upgrade

SKU CH-ZP8T-WTZ0S

A 256 GB DDR5 registered ECC kit (four 64 GB modules) running at 6400 MHz with CL52 latency and 1.1 V for the ASRock Rack GNRAP2D24G-2L+ motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 4 more
  • 256 GB capacity in a matched 4 x 64 GB kit for full server utilisation
  • DDR5 6400 speed with CL52 latency and 1.1 V operation for rated performance
  • Registered ECC architecture corrects single-bit errors and buffers the controller for stability
  • 288-pin RDIMM form factor verified for ASRock Rack GNRAP2D24G-2L+ motherboard
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise-grade reliability

Exact-Match Server Upgrade

This 256GB kit provides four 64GB DDR5 RDIMM modules rated at 6400MHz with CL52 latency and 1.10V operation. It is built as a direct replacement for the ASRock Rack GNRAP2D24G-2L+ motherboard, using the 288-pin Registered form factor that board requires. The 2Rx4 rank structure matches the memory controller expectations so the full capacity is recognised at rated speed without manual tuning.

Thermals Power And Noise

Modules run at the standard DDR5 voltage of 1.10V and carry no heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, which helps keep system power draw predictable when all slots are populated. Passive operation means the kit adds no audible noise of its own under normal server workloads.

Registered ECC For Data Integrity

On-die ECC corrects single-bit errors in real time, preventing silent data corruption that can crash production workloads or corrupt databases. The Registered architecture allows every slot to be filled at full rated capacity and speed, a requirement for this motherboard's population rules. Buyers who need unbuffered UDIMM or SODIMM modules cannot use this kit.

How it compares

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

Price $9,206.99
Pricier than about 86% 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 $35.96 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
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 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 4x64GB DDR5 6400 RDIMM kit in the ASRock Rack GNRAP2D24G-2L+ and what step is often missed?

Follow the motherboard manual for the exact DIMM population order; the board requires 288-pin Registered DDR5 modules installed in the approved sequence so all 256GB are recognised at full speed.

What maintenance or replacement will this DDR5 ECC RDIMM kit need later?

No routine maintenance is required; the modules have no heat spreaders and rely on server chassis airflow, while on-die ECC corrects single-bit errors automatically.

What limit appears first when the 2Rx4 DDR5 6400 kit runs fully populated under sustained load?

The memory controller's maximum supported capacity and rank-per-channel limit is reached first; the board's population rules determine whether all four 64GB 2Rx4 modules can operate at 6400MHz continuously.

More in Model-Specific Memory Upgrades

Similar items