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
Eight green DDR5 RDIMM modules in a row, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM MR51200-744K8 1TB 8x128GB DDR5 6400MHz CL52 4Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-DBVP-4J49M

Eight 128 GB DDR5 RDIMMs deliver 1 TB of registered ECC memory at 6400 MHz with CL52 latency and 1.1 V operation for the Supermicro X14SRA-F motherboard

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1TB 8X128GB

Show 4 more
  • 1TB total capacity with eight 128GB modules for high-density server workloads
  • DDR5 6400 speed rated at CL52 latency for responsive data throughput
  • Registered ECC architecture corrects single-bit errors to protect data integrity
  • 1V operation reduces power draw across fully populated memory channels
  • 288-pin RDIMM form factor validated for Supermicro X14SRA-F motherboard compatibility

1TB DDR5-6400 ECC RDIMM kit for Supermicro X14SRA-F

This 1 TB kit contains eight 128 GB DDR5-6400 (PC5-51200) registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro X14SRA-F memory controller expects. Each module runs at 1.1 V with CL52 latency and a 4Rx4 organisation across 288 pins.

Sustained-load stability from registered ECC

The registered design buffers address and command signals so every slot remains fully populated at rated speed without overloading the memory controller. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots during continuous server workloads.

Direct replacement for smaller

Install this kit when the platform demands maximum supported capacity and the qualified speed of DDR5-6400 with 4Rx4 registration. The upgrade is worthwhile only if the system manual confirms 1 TB total capacity and the specific population order required for eight modules.

How it compares

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

Price $33,277.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $33.28 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 numberMR51200-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items1 TB 8 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1TB DDR5 6400MHz kit draw at its rated 1.1V voltage?

Each 128GB module operates at 1.1V, so the full 8-module kit draws power at that voltage when running at DDR5 6400 speed with CL52 timings.

What motherboard slot and memory controller features are required for these 288-pin RDIMMs?

The kit needs a motherboard with 288-pin DDR5 RDIMM slots that supports Registered ECC memory, 4Rx4 rank configuration, and DDR5 6400MHz operation.

Will these 4Rx4 Registered ECC modules work in a system that currently uses 2Rx8 UDIMMs?

No, the Registered RDIMM form factor and 4Rx4 organization require a motherboard and memory controller designed for Registered ECC DDR5, not UDIMM slots.

More in Model-Specific Memory Upgrades

Similar items