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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 6400MHz CL52 2Rx8 1.1V ECC RDIMM 288-Pin Server Memory Upgrade

SKU CH-Y4A2-Y5SQX

A 64GB kit of two 32GB DDR5 ECC registered DIMMs running at 6400MHz CL52 and 1.1V for SuperMicro BigTwin SYS-222BT-HER servers

  • Total capacity64 GB (2 × 32 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx8
  • 64 GB total capacity with two 32 GB modules for high-density server workloads
  • DDR5 6400 MHz speed rated at PC5-51200 for fast data throughput
  • ECC registered design with CL52 latency protects data integrity in critical applications
  • Low 1.10 V operating voltage reduces power draw in dense configurations
  • Validated for Supermicro BigTwin SYS-222BT-HER ensuring reliable compatibility

Server DDR5 ECC RDIMM Kit

This NEMIX RAM kit provides 64GB of DDR5 registered ECC memory in a matched pair of 32GB modules. It operates at 6400MHz with CL52 latency and runs at the standard 1.1V for DDR5. The 288-pin RDIMM form factor is built for server motherboards that require registered, error-correcting modules.

Suited For Supermicro BigTwin Systems

Designed for the SuperMicro BigTwin SuperServer SYS-222BT-HER, this kit targets administrators expanding memory in that specific platform. Builders needing unbuffered UDIMMs, non-ECC memory, or different speeds and capacities for other servers or workstations should look elsewhere.

Registered ECC With 2Rx8 Organisation

The modules use a 2Rx8 rank configuration and registered buffering with on-die ECC. This combination determines compatibility with the memory controller; systems that require unbuffered memory or a different rank structure will not support these DIMMs.

How it compares

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

Price $2,266.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $35.42 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (2 × 32 GB) DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What motherboard slot and chipset does this DDR5 6400MHz CL52 2Rx8 1.1V ECC RDIMM kit require?

It needs a 288-pin DDR5 RDIMM slot on a Supermicro BigTwin SYS-222BT-HER platform that supports registered ECC memory at 1.10V.

Can I mix these 32GB 2Rx8 modules with existing 1Rx8 or 2Rx4 DDR5 RDIMMs in the same server?

Mixing ranks is not recommended; the Supermicro BigTwin SYS-222BT-HER works best when all populated channels use identical 2Rx8 registered ECC modules at the same speed and voltage.

How do I verify the kit runs at 6400MHz CL52 after installation?

Enter the BIOS or use a tool like dmidecode to confirm each module shows 6400 MT/s, CAS latency 52, 1.10V and registered ECC status.

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