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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB 8x32GB DDR5 4800 CL40 1.1V ECC RDIMM Supermicro H14SSL-N

SKU CH-13EK-N3E55

Eight 32 GB DDR5 registered ECC modules deliver 256 GB at 4800 MT/s with CL40 timing and 1.1 V operation for Supermicro H14SSL-N servers

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 8X32GB

Show 24 more
  • 256 GB total capacity from eight 32 GB modules
  • DDR5 4800 speed with CL40 latency at 1.1 V
  • Registered ECC architecture prevents silent data corruption
  • 288-pin RDIMM form factor matches Supermicro H14SSL-N
  • Samsung Micron or Hynix chips ensure enterprise-grade reliability

Server-grade DDR5 kit for Supermicro H14SSL-N

This 256GB kit contains eight 32GB DDR5-4800 Registered ECC RDIMMs built for the Supermicro H14SSL-N motherboard. Each module runs at 1.1V with CL40 timing in a 2Rx8 organisation. The registered design lets the memory controller drive every slot at full capacity without signal degradation.

Install in matched sets following the manual

The 288-pin RDIMM form factor fits only DDR5 RDIMM slots; UDIMM or SODIMM sockets will not accept them. Populate all eight channels in the exact order the motherboard manual specifies, otherwise the system may train at a lower speed or fail to post. Handle modules by the edges to avoid contaminating the gold contacts.

DDR5-4800 bandwidth caps sustained throughput

At PC5-38400 the peak transfer rate is fixed by the JEDEC standard, so workloads that scale beyond this ceiling will not gain extra memory bandwidth. Registered buffering adds a small latency overhead versus unbuffered DIMMs, which is normal for server platforms. The 1.1V operating voltage is mandated by DDR5 and cannot be lowered for power saving.

How it compares

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

Price $6,790.99
Pricier than about 83% 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 $26.53 per GB
Pricier than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-328K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
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 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I verify the kit is running at DDR5 4800 CL40 1.1V after installing all 8 modules in the Supermicro H14SSL-N?

Enter the BIOS on the Supermicro H14SSL-N and confirm the memory speed reads 4800 MT/s, CAS latency shows 40, and voltage is set to 1.1V with all 256GB detected.

What ships in the box and what must I source separately for this 256GB 8x32GB kit?

The box contains the 8x32GB DDR5 4800 CL40 1.1V ECC RDIMM modules; no heat spreaders, cables, or tools are included and nothing else is required for installation.

Which capacity version should I choose for a fully populated Supermicro H14SSL-N?

The 256GB 8x32GB kit fills all eight DIMM slots with 2Rx8 registered ECC modules matched to the board's population rules.

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