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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 48GB DDR5 4800 CL40 1.1V 2Rx8 ECC RDIMM Supermicro H14SSL-NT memory upgrade

SKU CH-EHJC-GS4WS

48GB DDR5 4800 RDIMM with ECC and registered buffering, CL40 timing at 1.1V for Supermicro H14SSL-NT servers

  • Total capacity48 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 48GB

Show 24 more
  • 48 GB capacity doubles available memory for large workloads
  • DDR5 4800 speed delivers high bandwidth at rated frequency
  • CL40 latency with 1.1 V operation matches controller expectations
  • 2Rx8 registered ECC design corrects errors and stabilises full populations
  • 288-pin RDIMM form factor fits Supermicro H14SSL-NT motherboard

Exact-match DDR5 ECC RDIMM for Supermicro H14SSL-NT

This 48 GB DDR5-4800 registered ECC module is built to the precise rank, voltage and timing the Supermicro H14SSL-NT memory controller expects. The 2Rx8 organisation and CL40 latency allow the board to recognise the full capacity and run at its rated speed without manual tuning. It is intended for administrators upgrading or populating that specific server platform.

Registered DDR5 limits and population rules

DDR5 registered DIMMs use a buffered architecture that offloads the memory controller, enabling every supported slot to run fully populated at 4800 MT/s. The motherboard manual defines the approved population order, maximum capacity per channel and any BIOS steps required; exceeding those limits will prevent the system from posting. No error-correcting or registered UDIMM or SODIMM variant will fit the 288-pin RDIMM slots.

Bare-module build and daily handling

The module ships without a heat spreader, relying on the server chassis airflow to maintain the 1.1 V operating voltage within spec. Gold-edge 288-pin connectors seat firmly in the board's RDIMM sockets, and the registered design keeps electrical loading low even when all channels are filled. Installers should follow the board's keyed orientation and anti-static procedure to avoid bent pins or latent damage.

How it compares

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

Price $1,132.99
Pricier than about 62% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $23.60 per GB
Pricier than about 68% 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 numberMR38400-4828K1
Total capacity48 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 items48 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Should I pick a single 48 GB module or combine smaller sticks for the H14SSL-NT?

This kit is one 48 GB DDR5-4800 RDIMM. The board requires registered DIMMs; populate slots in the order shown in the Supermicro manual to reach full capacity at rated speed.

What does the DDR5-4800 (PC5-38400) rating actually deliver in this server?

The module runs at 4800 MT/s with CL40 timing at 1.10 V. Registered buffering lets every slot run fully populated at that speed while ECC corrects single-bit errors on the fly.

Does the 288-pin RDIMM interface limit how fast the memory can run?

The 288-pin registered form factor is what the H14SSL-NT expects. It supports the module's native 4800 MT/s transfer rate; the board's memory controller and population rules set the practical ceiling.

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