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Green rectangular DDR5 RDIMM circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 48GB DDR5 6400MHz ECC Registered RDIMM Supermicro H14SSL-NT memory upgrade

SKU CH-Z118-B4QGR

48GB DDR5 6400MHz ECC Registered RDIMM with CL52 latency and 1.1V operation, validated for Supermicro H14SSL-NT motherboards

  • Total capacity48 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 48 GB capacity expands server memory headroom
  • DDR5 6400 speed matches board-rated data rate
  • Registered ECC design corrects single-bit errors on the fly
  • 2Rx8 1.10 V spec aligns with controller expectations
  • 288-pin RDIMM form factor fits Supermicro H14SSL-NT slots

48GB DDR5 RDIMM for Supermicro H14SSL-NT

This 48GB DDR5 6400MHz Registered ECC RDIMM is built for the Supermicro H14SSL-NT motherboard. It delivers 48GB capacity at PC5-51200 speed with CL52 latency and 1.1V operation. The 2Rx8 dual-rank organization matches the board's memory controller expectations for full recognition. System administrators upgrading compatible Supermicro servers use this module to expand memory without compatibility risk.

Replaces slower or lower-capacity DDR5 RDIMMs

The jump is worth it when your workload needs the exact 48GB 2Rx8 configuration at 6400MHz with Registered ECC stability. Registered buffering offloads the memory controller so every slot runs fully populated at rated speed. ECC corrects single-bit errors on the fly to stop silent data corruption. This module fits only when the board requires 288-pin DDR5 RDIMMs with these precise timings and voltage.

Check your motherboard manual first

Verify the Supermicro H14SSL-NT supports 48GB per slot and confirm the approved DIMM population order for your CPU configuration. Ensure all populated slots use identical 2Rx8 Registered ECC modules at 1.1V to avoid training failures. The board must accept DDR5 6400 PC5-51200 Registered RDIMMs — not UDIMMs or SODIMMs. Confirm BIOS version supports this capacity and rank before ordering.

How it compares

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

Price $1,129.99
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 $23.54 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 numberMR51200-4828K1
Total capacity48 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 items48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 288-pin DDR5 RDIMM fit the Supermicro H14SSL-NT motherboard slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the Supermicro H14SSL-NT motherboard slots exactly. It is a registered ECC module, not a UDIMM or SODIMM, so it seats correctly in the server's DIMM sockets.

What is the correct installation order for this 48GB 2Rx8 CL52 module on the H14SSL-NT?

Consult the Supermicro H14SSL-NT manual for the approved DIMM population sequence. Install the registered ECC RDIMM in the designated slot order, pressing firmly until the ejector clips lock, to ensure the memory controller recognises the full 48GB at DDR5-6400.

Does the 1.1V DDR5 RDIMM require any firmware updates or future battery replacement?

No firmware updates or battery replacements are needed for the memory module itself. The DDR5 RDIMM operates at 1.1V with on-die ECC; long-term stability is maintained through the registered architecture and lifetime replacement support.

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