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Single green 288-pin DDR4 RDIMM module, no heat spreader, gold edge contacts

NEMIX RAM

NEMIX RAM 128GB DDR4 2933 CL21 4Rx4 1.2V 288-Pin ECC RDIMM memory upgrade

SKU CH-PJ55-XFV8D

A 128 GB DDR4 2933 registered ECC RDIMM with CL21 latency and 1.2 V operation for Lenovo ThinkSystem servers

  • Total capacity128 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • Massive 128 GB capacity handles heavy server workloads
  • ECC registered design protects data integrity in critical systems
  • DDR4 2933 speed delivers responsive enterprise performance
  • Low 1.2 V operation reduces power draw and heat
  • 288-pin RDIMM fits compatible Lenovo ThinkSystem platforms

Lenovo Server Memory Upgrade

This 128GB DDR4 RDIMM is built for Lenovo ThinkSystem servers that require registered ECC memory. It targets IT professionals maintaining Intel-based platforms where data integrity and sustained uptime are mandatory.

Straightforward Module Installation

The single stick seats in a standard 288-pin DDR4 slot without tools. Common issues arise when mixing ranks or speeds across channels, so follow the server manual for population order and BIOS settings.

4Rx4 Rank Determines Compatibility

The quad-rank x4 organisation dictates how many modules each memory controller can address. Verify the server specification for maximum rank-per-channel limits before ordering.

How it compares

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

Price $642.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.02 per GB
Cheaper than about 76% 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 2933 MHz ECC RDIMM Registered Server Memory
Part numberMR23400-744K1
Total capacity128 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items128 GB (1 × 128 GB) DDR4 2933 MHz PC4-23400 4Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I verify the 128GB DDR4 2933 CL21 module is running at the correct speed and timings after installation?

Enter the server BIOS or use a tool like CPU-Z to confirm the memory reports 2933 MT/s, CL21 latency, 1.20V voltage and 4Rx4 organisation for the installed DIMM.

What does the package contain and are any additional parts required for installation in a compatible Lenovo ThinkSystem server?

The box includes one 128GB 288-pin DDR4 ECC RDIMM (part MR23400-744K1). No extra components are needed; the module seats directly into a supported RDIMM slot.

Which capacity and rank configuration should I choose for a Lenovo ThinkSystem server using part 4ZC7A15113?

This listing provides a single 128GB 4Rx4 registered DIMM matched to the 4ZC7A15113 specification. Select this exact module to meet the required density and rank layout.

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