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
Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 6400 ECC RDIMM CL52 1.1V Supermicro H14DSG-O-CPU memory upgrade

SKU CH-TFPP-FDVKY

A 128 GB DDR5 ECC registered kit of four 32 GB modules running at 6400 MT/s with CL52 latency and 1.1 V, validated for the Supermicro H14DSG-O-CPU motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity from four 32 GB modules
  • DDR5 6400 speed with CL52 latency for rated performance
  • 1 V registered ECC design protects data integrity
  • 288-pin RDIMM form factor matches Supermicro H14DSG-O-CPU requirements
  • 2Rx8 organisation enables full population at rated speed

Server Memory Upgrade Kit

This 128GB kit contains four 32GB DDR5 RDIMM modules rated at 6400MHz with CL52 latency and 1.1V operation. It is built for the Supermicro H14DSG-O-CPU motherboard using 288-pin registered ECC memory. The 2Rx8 organization matches the board's memory controller requirements for full-capacity recognition.

Registered ECC for Dense Configurations

Suited for administrators populating all available slots on a compatible Supermicro platform where registered buffering and error correction are required. Not suited for systems that accept only unbuffered UDIMMs or SODIMMs, or for builds that cannot use registered ECC modules.

DDR5 6400 Registered ECC Specification

The decisive specification is the DDR5 6400 registered ECC RDIMM standard with 2Rx8 rank structure and 1.1V voltage. The motherboard must support this exact combination of speed, form factor, and registered ECC operation for the kit to function at its rated capacity and timing.

How it compares

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

Price $4,830.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $37.74 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 numberMR51200-328K4
Total capacity128 GB (4 × 32 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 items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the DDR5 6400 interface on the Supermicro H14DSG-O-CPU run at the full 6400 MT/s with this 2Rx8 kit?

Yes. The kit is spec-matched to the board's memory controller so all four 32 GB modules operate at DDR5 6400 with CL52 timings at 1.1 V.

What physical slot and form factor does this 288-pin RDIMM kit require on the H14DSG-O-CPU?

Four standard DDR5 RDIMM sockets. The board takes registered 288-pin DIMMs — not UDIMM or SODIMM — and the kit provides exactly four 32 GB modules.

Which DIMM slots should I populate first on the H14DSG-O-CPU when installing all four modules?

Follow the motherboard manual's population order; the board has specific slot sequencing for full 128 GB operation and skipping a step will prevent the system from posting.

More in Model-Specific Memory Upgrades

Similar items