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Green rectangular DDR5 memory module with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 6400MHz CL52 1.1V 2Rx4 ECC RDIMM 288-Pin memory upgrade

SKU CH-EZBJ-P6DYT

A 64 GB DDR5 registered ECC module running at 6400 MHz CL52 with 1.1 V for the ASRock Rack W890D8-2L2T motherboard

  • Total capacity64 GB
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 64 GB capacity lets servers handle larger workloads
  • DDR5 6400 MHz speed increases data throughput
  • ECC and registered design protects data integrity
  • 1 V operation reduces power draw
  • 288-pin RDIMM fits ASRock Rack W890D8-2L2T motherboards

Server ECC RDIMM

This NEMIX RAM module is a 64GB DDR5 registered DIMM built for server and workstation platforms that require error-correcting memory. It targets administrators upgrading compatible ASRock Rack systems where data integrity and registered signalling are mandatory.

CL52 latency at 6400MHz

The single specification that determines fit is the CAS latency of 52 cycles at the 6400MHz data rate, matching the PC5-51200 standard. Systems tuned for this timing window will initialise the module without manual adjustment.

64GB capacity in one slot

A single 288-pin RDIMM delivers 64GB using a 2Rx4 organisation at 1.1V, letting dense configurations scale within limited DIMM slots. Workloads exceeding this per-slot density or requiring unbuffered memory must choose a different module.

How it compares

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

Price $2,238.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $34.98 per GB
Pricier than about 90% 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 numberMR51200-924K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (1 × 64 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

How does CL52 latency affect real-world server responsiveness?

CL52 means 52 clock cycles before data is available; at 6400 MHz this keeps access times low for database and virtualization workloads on the ASRock Rack W890D8-2L2T.

What does the PC5-51200 rating cap in practice?

PC5-51200 confirms a 6400 MT/s DDR5 transfer rate; the registered ECC design and 1.1 V operation keep signal integrity stable at that speed on supported server boards.

Will this 288-pin RDIMM fit the ASRock Rack W890D8-2L2T memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the motherboard's registered DIMM slots; the single 64 GB module occupies one slot without a heat spreader.

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