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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

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 8X32GB

Show 24 more configurations
  • 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.

Highlights

  • 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

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-328K8
Capacity256GB (8 x 32GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 8X32GB DDR5 4800MHz PC5-38400 2Rx8 1.1V 288-PIN ECC RDIMM KIT

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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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