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Four green DDR4 RDIMM sticks in anti-static packaging

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR4 3200 CL22 ECC RDIMM Lenovo SE450 memory upgrade

SKU CH-S851-80MFF

A 512 GB registered DDR4 ECC kit of four 128 GB modules at 3200 MHz CL22 built for the Lenovo ThinkEdge SE450 server

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 512 GB total capacity from four 128 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered design protects data integrity
  • CL22 latency at 1.2 V operating voltage
  • 288-pin RDIMM kit validated for Lenovo ThinkEdge SE450

Capacity and Compatibility

This kit provides 512GB of DDR4 ECC registered memory in four 128GB modules. It is built for the Lenovo ThinkEdge SE450 Edge AI Server and will not fit systems that require unbuffered DIMMs or a different pin count.

Installation Requirements

Verify that the server has four free 288-pin DDR4 RDIMM slots and that the BIOS supports 4Rx4 registered modules at 3200MHz. The kit runs at 1.2V, so the platform must supply that voltage for stable operation.

What the Kit Changes

Adding the full 512GB kit expands the memory ceiling for virtualization and edge-AI workloads while ECC and registered signalling protect data integrity. No heat spreaders are included, so airflow in the chassis must be sufficient for bare modules.

How it compares

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

Price $3,955.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $7.73 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-744K4
Total capacity512 GB (4 × 128 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 rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items512 GB (4 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 512GB kit include all four 128GB modules or must any be purchased separately?

The kit contains four 128GB DDR4 3200 CL22 ECC RDIMM modules for a total of 512GB; nothing else is required for installation.

When should I choose the 4Rx4 128GB modules over other capacities for the ThinkEdge SE450?

Select this 4Rx4 128GB configuration when the SE450 memory slots support quad-rank modules and the workload needs maximum density per slot.

What does the 3200 CL22 rating mean once the memory is running in the SE450?

The modules operate at 3200 MT/s with a CAS latency of 22 cycles at 1.2 V, delivering PC4-25600 bandwidth in the server.

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