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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM DDR5 6400 256GB (8x32GB) CL52 1.1V 2Rx8 ECC Registered RDIMM Supermicro H13SSW memory upgrade

SKU CH-NQ45-YK7WT

256 GB DDR5-6400 registered ECC kit in eight 32 GB modules at CL52 and 1.1 V for the Supermicro H13SSW motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB capacity across eight 32 GB modules lets your Supermicro H13SSW handle large workloads
  • DDR5 6400 speed with CL52 latency delivers rated throughput the memory controller expects
  • 10 V registered ECC RDIMM architecture offloads the controller and corrects single-bit errors on the fly
  • 2Rx8 dual-rank organisation enables full-capacity population in every slot without down-clocking
  • 288-pin RDIMM form factor matches the board's exact slot and population requirements

Exact DDR5-6400 RDIMM kit for Supermicro H13SSW

This 256GB kit contains eight 32GB DDR5 6400 modules built to PC5-51200 speed with CL52 latency and 1.1V operation. Registered ECC architecture with 2Rx8 organisation provides the signal integrity and error correction required by server memory controllers. Modules use 288-pin RDIMM form factor and major OEM chips from Samsung, Micron or Hynix.

Verify motherboard manual for population rules

The Supermicro H13SSW requires Registered RDIMM modules, not UDIMM or SODIMM variants. Confirm the approved DIMM population order and maximum supported capacity per channel before ordering. Ensure the system BIOS is updated to a version that recognises fully populated DDR5-6400 Registered ECC configurations at rated speed.

Replaces partial or slower DDR5 RDIMM sets

Upgrading from a partially filled configuration or lower-speed DDR5 RDIMMs eliminates empty slots and raises bandwidth to the full PC5-51200 specification. The jump is worthwhile when workloads demand maximum registered ECC capacity and the board's memory controller supports eight 2Rx8 modules at 6400 MT/s without downclocking.

How it compares

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

Price $9,308.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $36.36 per GB
Pricier than about 90% of the 20,941 comparable items (median $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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-328K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 8 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 256 GB kit ship as eight 32 GB modules or must I buy extra sticks?

The kit contains eight 32 GB DDR5 RDIMMs for a total of 256 GB; nothing else is required to reach that capacity.

Why choose the 256 GB 8×32 GB CL52 1.1 V version instead of a smaller kit?

This exact-match 256 GB kit uses 2Rx8 registered ECC modules at 1.1 V CL52, matching the Supermicro H13SSW population rules for full-speed operation.

Will the DDR5 6400 rating run at 6400 MT/s once installed in the H13SSW?

Yes, the modules are spec-matched to the board's memory controller so all eight slots operate at the rated DDR5 6400 speed when populated per the manual.

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