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Green rectangular DDR4 RDIMM module with black chips on both sides, 288 gold pins along bottom edge

NEMIX RAM

NEMIX RAM 64GB DDR4 3200 ECC RDIMM 2Rx4 CL22 Lenovo ThinkSystem 4X77A08635 memory upgrade

SKU CH-FSXG-4HMPB

64GB DDR4 3200 ECC registered RDIMM with CL22 latency and 1.2V operation for Lenovo ThinkSystem servers

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64 GB capacity expands server memory headroom
  • DDR4 3200 speed delivers high bandwidth throughput
  • ECC registered design protects data integrity under load
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits Lenovo ThinkSystem slots

64GB DDR4 ECC RDIMM for Lenovo servers

This 64GB DDR4 3200MHz registered DIMM delivers error-correcting memory for Lenovo ThinkSystem servers using part number 4X77A08635. The single module operates at 1.2V with CL22 latency and 2Rx4 organisation. It targets administrators who need to expand capacity in compatible Intel-based server platforms.

Verify registered DIMM slots and population rules

Confirm your Lenovo ThinkSystem server accepts 288-pin DDR4 RDIMMs and supports 64GB per slot before ordering. Registered ECC modules require a motherboard designed for buffered memory and will not function in standard desktop or unbuffered server boards. Consult the system manual for approved memory configurations and maximum total capacity.

Single module ships without heat spreader

The package contains one 64GB RDIMM tested for compatibility with the specified Lenovo part number. No heat spreader is included, so airflow across the module relies on the server chassis cooling design. The module uses major OEM chips from Samsung, Micron or Hynix and carries a lifetime replacement warranty from the memory specialist.

How it compares

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

Price $433.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.78 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K1
Total capacity64 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the 64GB module ship alone or in a kit?

The package contains one 64GB DDR4 3200 ECC RDIMM; no additional modules are included.

How do I know if this CL22 2Rx4 stick matches my ThinkSystem slot?

The module is built to Lenovo part 4X77A08635 spec, so it fits registered DDR4 slots that require 2Rx4 organisation and 1.20V operation.

What does the 3200 MT/s rating deliver inside a registered server board?

At 3200 MT/s the stick runs at PC4-25600 bandwidth with CL22 latency, providing the rated throughput for compatible Intel-based ThinkSystem platforms.

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