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
Two green DDR5 RDIMM sticks without heat spreaders, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 6400 CL52 1.1V ECC RDIMM memory upgrade

SKU CH-XFDY-V1JBR

128 GB DDR5-6400 ECC registered dual-rank kit validated for Supermicro H13SST-G servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact DDR5-6400 CL52 spec match for full rated speed
  • 128 GB 2Rx4 registered ECC prevents silent data corruption
  • 10 V operation reduces server power draw
  • 288-pin RDIMM form factor fits Supermicro H13SST-G
  • Lifetime replacement warranty with US-based technical support

Capacity and Form Factor

This NEMIX RAM kit delivers 128GB total capacity across two 64GB DDR5 RDIMM modules. Each module uses the 288-pin registered DIMM form factor required by compatible server motherboards.

Registered ECC for Server Workloads

The 2Rx4 registered ECC design suits administrators running virtualization, databases or other memory-intensive services that demand error correction and full-slot population. Builders needing unbuffered UDIMMs or non-ECC memory for consumer platforms should select a different product.

Motherboard Compatibility Check

Verify that your Supermicro H13SST-G motherboard supports 64GB registered DIMMs at DDR5 6400 with CL52 latency and 1.1V operation. Consult the system manual for approved population order and maximum supported capacity per channel before ordering.

How it compares

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

Price $4,562.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.65 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 numberMR51200-924K2
Total capacity128 GB (2 × 64 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 2 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What motherboard slot type and pin count does this 288-pin DDR5 RDIMM kit require?

The kit uses 288-pin DDR5 RDIMM modules that must be installed in registered DIMM slots on a compatible motherboard such as the Supermicro H13SST-G.

Can I mix these 2Rx4 registered ECC modules with unbuffered UDIMMs already in my server?

No, registered RDIMMs and unbuffered UDIMMs use different signalling and cannot be mixed in the same system.

How do I confirm the kit is running at its rated 6400 MT/s and CL52 timings after installation?

Check the memory speed and CAS latency reported in the BIOS or a tool such as CPU-Z; they should show 6400 MT/s and CL52 at 1.1 V.

More in Model-Specific Memory Upgrades

Similar items