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Twelve green DDR4 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR4-2933 768GB (12x64GB) ECC RDIMM CL21 1.2V 2Rx4

SKU CH-YS3B-TQ6GF

768 GB DDR4 ECC registered kit with twelve 64 GB RDIMMs at 2933 MHz CL21 for ASUS WS C621E SAGE workstations

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 768GB 12X64GB

  • Massive 768 GB capacity with twelve 64 GB modules for dense server workloads
  • Registered ECC RDIMM design offloads the memory controller and corrects single-bit errors
  • DDR4-2933 PC4-23400 speed matches the board's rated frequency for full performance
  • CL21 latency at 1.2 V delivers efficient timing within standard server power envelopes
  • Verified fit for ASUS WS C621E SAGE workstation with 288-pin registered form factor

Purpose-built server memory kit

This 768 GB kit delivers twelve 64 GB DDR4-2933 registered ECC RDIMMs tuned to CL21 at 1.2 V. The exact rank, voltage and timing match the ASUS WS C621E SAGE workstation memory controller so every slot is recognised at full capacity and rated speed.

Suited for fully populated workstations

Builders who need maximum registered ECC capacity on this specific platform will find the kit validated for the board's population rules. Systems requiring unbuffered UDIMMs, SODIMMs, lower voltages or non-ECC modules cannot use this memory.

Handles 768 GB at DDR4-2933

The registered architecture offloads the memory controller so all twelve slots run fully populated at 2933 MT/s with ECC correcting single-bit errors on the fly. Headroom ends at the board's qualified maximum capacity and speed; any configuration beyond the manual's approved population order is unsupported.

How it compares

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

Price $4,532.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $5.90 per GB
Cheaper than about 66% 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 nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR23400-924K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items768 GB 12 × 64 GB DDR4 2933 MHz PC4-23400 2Rx4 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Does this 768GB kit require an ASUS WS C621E SAGE motherboard with a C621 chipset to run at DDR4-2933?

Yes, the kit is spec-matched for the ASUS WS C621E SAGE workstation motherboard and its C621 chipset, which supports DDR4-2933 Registered ECC RDIMMs in a 12-DIMM configuration.

Can I mix these 2Rx4 Registered ECC RDIMMs with any existing UDIMM or single-rank modules I already have?

No, mixing Registered RDIMMs with unbuffered UDIMMs or different rank configurations is not supported; the memory controller expects identical 2Rx4 Registered ECC modules in every populated slot.

How do I verify the system recognises all 768GB at DDR4-2933 CL21 after installation?

Enter the BIOS or UEFI and confirm the memory summary shows 768GB total, 2933 MT/s speed, CL21 latency, and ECC enabled for all 12 slots.

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