We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 2Rx4 ECC Registered RDIMM Supermicro H14SSL-NT memory upgrade

SKU CH-5DHX-5SHEK

128GB DDR5 4800 registered ECC RDIMM, 2Rx4 CL40 1.1V, validated for Supermicro H14SSL-NT motherboards

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

Show 24 more
  • 128 GB DDR5-4800 RDIMM delivers full-capacity server performance
  • Registered ECC architecture prevents silent data corruption under heavy load
  • CL40 latency at 1.1 V matches the H14SSL-NT memory controller exactly
  • 2Rx4 288-pin form factor fits the board's population rules
  • Lifetime replacement warranty with US-based technical support included

Supermicro H14SSL-NT DDR5 upgrade

This NEMIX RAM module adds 128 GB of DDR5-4800 registered ECC memory to a Supermicro H14SSL-NT motherboard. The 288-pin RDIMM form factor matches the board's registered DIMM slots and population rules. It is intended for administrators expanding capacity in compatible Supermicro server platforms.

2Rx4 rank and 1.1 V registered ECC

The single specification that determines fit is the 2Rx4 registered ECC organisation at 1.1 V with CL40 timing. This exact rank structure, voltage and error-correction mode is what the H14SSL-NT memory controller expects for full-speed operation. A UDIMM, different rank or voltage would not be recognised or would run at reduced capacity.

Single-module kit with lifetime support

The package contains one 128 GB RDIMM and no additional cables, brackets or software. NEMIX RAM provides lifetime replacement coverage and US-based technical assistance for the module itself. Buyers who need multiple matched modules or a pre-validated multi-DIMM kit should verify their board's population guide before ordering.

How it compares

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

Price $3,551.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.75 per GB
Pricier than about 78% 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 numberMR38400-724K1
Total capacity128 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 items128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

What does the 4800 MT/s rating mean once the module is installed in a Supermicro H14SSL-NT?

The module will run at DDR5-4800 (PC5-38400) with CL40 timings at 1.1 V, delivering the exact speed and latency the motherboard's memory controller expects when populated per its rules.

How does the 288-pin RDIMM interface and registered design affect what the system can do?

The 288-pin registered form factor is required by the H14SSL-NT; the buffered architecture lets every slot run fully populated at the rated 128 GB capacity while ECC corrects single-bit errors on the fly.

What physical clearance does this 288-pin RDIMM need to fit in the server?

It uses the standard 288-pin RDIMM height with no heat spreader, so it fits the H14SSL-NT's DIMM slots without extra clearance beyond the motherboard's normal layout.

More in Model-Specific Memory Upgrades

Similar items