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Four green DDR5 RDIMM modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 5600 CL46 2Rx4 ECC RDIMM memory upgrade

SKU CH-RZNJ-QKE8G

256 GB registered ECC DDR5 kit with four 64 GB modules at 5600 MT/s CL46 for Lenovo ThinkSystem SR685a V3

  • Capacity256GB (4 x 64GB)
  • SpeedDDR5 5600 (PC5 44800)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity across four 64 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for Lenovo ThinkSystem SR685a V3 rack servers

Server Memory Kit

This 256GB kit contains four 64GB DDR5 5600 RDIMM modules built for Lenovo ThinkSystem SR685a V3 rack servers. It targets administrators who need registered ECC memory for enterprise workloads and virtualization.

Build and Connectors

Each module uses a 288-pin DDR5 RDIMM form factor with 2Rx4 organisation and runs at 1.10V without a heat spreader. The registered design adds a buffer that reduces electrical load on the server memory controller.

DDR5 Limits

DDR5 5600 operates at CL46 latency and PC5-44800 bandwidth, which caps throughput for latency-sensitive tasks. The registered ECC architecture prioritises data integrity over raw speed, so it suits stable server operation rather than low-latency desktop use.

Highlights

  • 256 GB total capacity across four 64 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for Lenovo ThinkSystem SR685a V3 rack servers

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 5600MHZ ECC RDIMM Registered Server Memory
Part NumberMR44800-924K4
Capacity256GB (4 x 64GB)
SpeedDDR5 5600 (PC5 44800)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL46
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (4X64GB) DDR5 5600MHZ PC5-44800 2Rx4 1.1V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What DDR5 speed and bandwidth does this 256GB kit provide?

The kit runs at DDR5 5600 with a PC5-44800 bandwidth rating, delivering 5600 MT/s data transfer across four 64GB modules.

What physical slot and form factor are required for these 288-pin RDIMMs?

Each module uses the standard 288-pin DDR5 RDIMM form factor and fits server motherboards with matching registered DIMM slots.

How are the four 2Rx4 ECC registered modules installed in the ThinkSystem SR685a V3?

Populate all four modules in the server's designated DDR5 RDIMM slots following the platform's population sequence; a common mistake is skipping the required slot order for registered memory.

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