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Four green DDR5 RDIMM modules, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 4800 CL40 1.1V ECC RDIMM Supermicro H13SSW memory upgrade

SKU CH-485B-3NB1E

256GB DDR5 4800 CL40 ECC RDIMM kit of four 64GB modules at 1.1V for Supermicro H13SSW motherboards

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 24 more
  • Full 256 GB capacity across four 64 GB modules for dense server memory
  • DDR5-4800 CL40 at 1.1 V delivers rated speed with standard voltage
  • Registered ECC RDIMM architecture corrects single-bit errors for data integrity
  • 2Rx4 dual-rank organisation enables full-slot population on the H13SSW
  • 288-pin DDR5 form factor matches the motherboard's exact slot specification

Exact-match server upgrade

This 256GB kit delivers four 64GB DDR5 4800 RDIMMs built to the Supermicro H13SSW motherboard's exact rank, voltage and timing requirements. The modules install as a matched set so the server recognises the full capacity at the rated speed without manual tuning.

Registered ECC RDIMM form factor

Each stick uses a 288-pin registered design that buffers address and command signals, letting every slot run fully populated while ECC corrects single-bit errors before they reach the operating system. No heat spreader is fitted, so the modules fit tight clearance layouts and rely on server chassis airflow.

DDR5 4800 platform limits

The DDR5 4800 interface sets the maximum transfer rate and latency floor for this generation; higher frequencies or lower latencies need a different memory controller and are not supported by this board. Population rules in the motherboard manual dictate which slots must be filled first and the maximum capacity per channel.

How it compares

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

Price $7,196.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.11 per GB
Pricier than about 79% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What DDR5 speed and CAS latency does this kit run at?

The kit is rated for DDR5-4800 (PC5-38400) with CL40 timing.

What physical slot type and module count are required for the Supermicro H13SSW?

It uses four 288-pin DDR5 RDIMM slots; the kit provides four 64 GB modules to fill them.

What BIOS population order does the H13SSW manual specify for a full 256 GB install?

Consult the motherboard manual for the exact DIMM population sequence; the board requires a specific slot order when all four channels are populated.

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