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 printed circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 128GB 6400MHz CL52 1.1V 2Rx4 Supermicro H14SSL-NT

SKU CH-9X8E-WERD4

128 GB DDR5 6400 MHz ECC RDIMM with CL52 latency, 1.1 V operation and 2Rx4 rank, validated for the Supermicro H14SSL-NT motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact-match upgrade for Supermicro H14SSL-NT
  • 128 GB DDR5 6400 MHz CL52 1.1 V registered ECC
  • 2Rx4 organization enables full-capacity population
  • ECC corrects single-bit errors preventing data corruption
  • Lifetime replacement warranty with US-based technical support

Exact-match DDR5 server memory

This NEMIX RAM module delivers 128GB of DDR5 ECC registered memory at 6400MHz with CL52 latency and 1.1V operation. It is built as a precise upgrade for the Supermicro H14SSL-NT motherboard, matching the rank, voltage and timing the memory controller expects. The 2Rx4 organisation allows full-capacity recognition across populated slots.

288-pin RDIMM form factor

The 288-pin registered DIMM fits only motherboards that require RDIMM modules, not UDIMM or SODIMM variants. Registered architecture buffers address and command signals so the memory controller can drive every slot at rated speed when fully populated. Major OEM chips from Samsung, Micron or Hynix provide the underlying silicon.

Enterprise stability with ECC

On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots in production workloads. The 1.1V operating voltage keeps power draw low for dense server configurations. No heat spreader is fitted, so airflow across the bare PCB is required for thermal management.

How it compares

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

Price $4,732.99
Pricier than about 79% 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 $36.98 per GB
Pricier than about 90% 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 numberMR51200-724K1
Total capacity128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What DDR5 speed and CAS latency does this 128 GB RDIMM run at?

The module operates at 6400 MT/s with a CAS latency of CL52, matching the PC5-51200 standard your Supermicro H14SSL-NT memory controller expects.

What physical slot and form factor does this memory require on the H14SSL-NT?

It uses the 288-pin DDR5 RDIMM form factor; the board needs registered DIMM slots, not UDIMM or SODIMM sockets.

How should I install this 2Rx4 module and what population rule do builders often miss?

Insert the RDIMM firmly until the ejector clips lock, then follow the motherboard manual's exact slot-population sequence for 2Rx4 registered DIMMs to avoid the common error of skipping required slots.

More in Model-Specific Memory Upgrades

Similar items