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 bare circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz CL52 2Rx4 1.1V ECC Registered RDIMM GIGABYTE MZ33-CP1 memory upgrade

SKU CH-FAHZ-J7ZPB

A 128 GB DDR5-6400 registered ECC RDIMM at 1.1 V CL52, built for the GIGABYTE MZ33-CP1 server board

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

Show 24 more
  • 128 GB capacity lets the GIGABYTE MZ33-CP1 run fully populated at rated speed
  • Registered ECC design corrects single-bit errors on the fly to prevent silent data corruption
  • DDR5 6400 (PC5-51200) CL52 at 1.1 V matches the board's exact timing and voltage requirements
  • 2Rx4 288-pin RDIMM form factor is the specific module type this motherboard accepts
  • Built with major OEM DRAM chips and backed by lifetime replacement support

Exact-match server upgrade

This 128GB DDR5 module is built as a direct drop-in for the GIGABYTE MZ33-CP1 motherboard. It uses the 288-pin RDIMM form factor with registered ECC architecture that the platform expects. The 2Rx4 organisation and 1.10V operating voltage match the board's memory controller requirements exactly. System administrators can install it without configuration guesswork.

Sustained-load stability

Registered buffering reduces electrical load on the memory controller so every slot stays at the rated 6400 speed even when fully populated. ECC corrects single-bit errors on the fly, preventing silent data corruption during long compute runs. The CL52 latency and 1.10V supply are maintained continuously rather than just in short bursts. This combination keeps throughput predictable under constant enterprise workloads.

2Rx4 registered ECC constraint

The module's dual-rank registered ECC design is the single specification that determines compatibility. Boards or CPUs that require UDIMM, SODIMM, single-rank, or non-ECC memory will not accept this part. Verify the motherboard manual for approved DIMM population order and maximum supported capacity before purchase. If the platform does not explicitly support 2Rx4 registered ECC RDIMMs, this upgrade will not function.

How it compares

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

Price $4,389.99
Pricier than about 78% 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 $34.30 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 systemsGIGABYTE
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 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 heat does the 1.1V DDR5 6400 RDIMM produce when running continuously in a fully populated server?

Operating at 1.1V, the module draws less power per gigabyte than higher-voltage DDR5, so sustained loads generate modest heat; the registered design also reduces electrical loading on the memory controller, helping thermal headroom in dense configurations.

What motherboard slot and firmware support are required for this 288-pin ECC Registered kit to function?

The kit needs a DDR5 RDIMM slot — 288 pins — and a platform that enables registered ECC operation; the GIGABYTE MZ33-CP1 is validated, but any board must explicitly list RDIMM support and the correct population rules in its manual.

Can I mix this 2Rx4 CL52 module with older DDR5 RDIMMs of different rank or latency in the same system?

Mixing ranks or CAS latencies is not recommended; the memory controller will default to the slowest timing and may limit capacity per channel, so populate all slots with identical 2Rx4 CL52 modules for stable full-speed operation.

More in Model-Specific Memory Upgrades

Similar items