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Green rectangular circuit board with gold edge connectors and black memory chips

NEMIX RAM

NEMIX RAM 16GB DDR4 3200 CL22 2Rx8 1.2V 288-Pin ECC RDIMM Lenovo 4ZC7A15121 memory upgrade

SKU CH-29BF-NE77W

16GB DDR4 3200MHz ECC registered RDIMM for Lenovo ThinkSystem servers, CL22 1.2V 2Rx8 288-pin

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 16 GB DDR4 3200 MHz boosts server throughput
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM fits Lenovo ThinkSystem 4ZC7A15121 slots
  • CL22 CAS latency supports stable AMD platform timing

Lenovo ThinkSystem DDR4 ECC RDIMM

This 16GB registered DDR4 module is built for Lenovo ThinkSystem servers that require ECC memory. It operates at 3200MHz with a CL22 latency and runs at 1.20V. The 2Rx8 dual-rank organisation and 288-pin form factor match the 4ZC7A15121 specification for AMD-processor platforms.

Registered ECC with 2Rx8 organisation

The single specification that decides fit is the registered ECC RDIMM design combined with a 2Rx8 rank structure. Unbuffered UDIMMs or single-rank modules will not function in the target ThinkSystem slots. This module uses major OEM chips from Samsung, Micron or Hynix and carries the PC4-25600 speed rating.

IT teams upgrading compatible ThinkSystem servers

Suits administrators adding capacity to Lenovo ThinkSystem servers that specifically call for DDR4 3200 registered ECC RDIMMs with a 2Rx8 layout. Not for workstations or desktops that accept only unbuffered non-ECC memory, nor for systems requiring a different rank configuration or voltage. Buyers needing higher densities or alternative speeds should verify the platform's qualified vendor list.

How it compares

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

Price $124.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.81 per GB
Typical for this category: the median of 20,941 items is $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 lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-628K1
Total capacity16 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 rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items16 GB (1 × 16 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 3200 speed run at that rate in my Lenovo ThinkSystem server?

The module is rated DDR4 3200 PC4-25600. Actual operating speed depends on the server's memory controller and populated DIMM slots; the system will negotiate the highest supported frequency up to 3200 MT/s.

What does the registered ECC RDIMM interface provide for this module?

Registered buffering reduces electrical load on the memory bus, and ECC corrects single-bit errors, enabling stable operation in multi-DIMM server configurations that require registered memory.

Does the 288-pin form factor fit standard DDR4 RDIMM slots in ThinkSystem AMD servers?

Yes, the 288-pin DDR4 RDIMM layout matches the DIMM sockets used in compatible Lenovo ThinkSystem AMD-based servers; verify the system's qualified parts list for exact slot population rules.

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