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
A green circuit board with gold edge connectors and black memory chips

NEMIX RAM

NEMIX RAM 128GB DDR4 2933 CL21 4Rx4 RDIMM memory upgrade

SKU CH-3GGM-ZSRN5

128GB DDR4 2933MHz ECC registered RDIMM server memory module for Lenovo ThinkSystem compatibility

  • Capacity128GB
  • SpeedDDR4 2933 (PC4 23400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 128 GB capacity enables large virtualised workloads
  • DDR4 2933 speed delivers high throughput for server tasks
  • ECC registered design protects data integrity under load
  • 2 V operation reduces power draw in dense configs
  • Tested compatible with Lenovo ThinkSystem 4X77A12187 servers

128GB DDR4 2933 ECC RDIMM Server Module

This NEMIX RAM module provides 128GB of DDR4 2933 registered ECC memory in a single 288-pin RDIMM. It operates at 1.2V with a CL21 latency and 4Rx4 organisation. The unit is designed for compatibility with Lenovo ThinkSystem servers using Intel processors.

Suited for Lenovo ThinkSystem capacity upgrades

This module fits administrators expanding memory in compatible Lenovo ThinkSystem servers that require registered ECC RDIMMs. It is not suitable for systems that only accept unbuffered UDIMMs, non-ECC memory, lower-density modules, or DDR5 slots.

128GB single-module density decides fit

The 128GB capacity in one 4Rx4 RDIMM determines whether the server board and memory controller support this density and rank configuration. Verify the platform qualified vendor list for this exact part number before purchase.

Highlights

  • 128 GB capacity enables large virtualised workloads
  • DDR4 2933 speed delivers high throughput for server tasks
  • ECC registered design protects data integrity under load
  • 2 V operation reduces power draw in dense configs
  • Tested compatible with Lenovo ThinkSystem 4X77A12187 servers

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR4 2933MHZ ECC RDIMM Registered Server Memory
Part NumberMR23400-744K1
Capacity128GB
SpeedDDR4 2933 (PC4 23400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemLenovo
CAS LatencyCL21
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank4Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (1X128GB) DDR4 2933MHZ PC4-23400 4Rx4 1.2V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does this 128GB DDR4 2933 RDIMM require a Lenovo ThinkSystem server with an Intel processor to operate?

Yes, the module is validated for Lenovo ThinkSystem servers using Intel processors and matches part number 4X77A12187.

Can I mix this 4Rx4 registered ECC module with existing 2Rx4 or 1Rx4 DDR4 RDIMMs in the same server?

Mixing ranks is possible if the platform supports it, but population rules vary by model; consult the server memory guide for approved configurations.

After installation, how can I confirm the 128GB module is running at 2933 MT/s with ECC active?

Check the BIOS memory information or use a tool such as dmidecode to verify speed, 4Rx4 organization and ECC status.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.