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Twelve green DDR5 RDIMM modules in a row, each with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 768GB 12x64GB 5600MHz CL46 2Rx4 1.1V ECC RDIMM Supermicro H13SST-GC memory upgrade

SKU CH-R9X5-XENV3

A 768GB DDR5 kit of twelve 64GB registered ECC RDIMMs running at 5600MHz CL46, validated for the Supermicro H13SST-GC motherboard

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 12X64GB

Show 24 more
  • 768 GB total capacity from twelve 64 GB modules for maximum memory density
  • DDR5 5600 speed with CL46 latency delivers rated throughput for Supermicro H13SST-GC
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 1 V operation at 2Rx4 rank matches the motherboard memory controller exactly
  • 288-pin RDIMM form factor fits the board's required DIMM slots precisely

Exact-match DDR5 kit for Supermicro H13SST-GC

This 768GB kit contains twelve 64GB DDR5 RDIMMs rated at 5600MHz with CL46 latency and 1.1V operation. Registered ECC architecture with 2Rx4 organisation is designed for the Supermicro H13SST-GC motherboard so the memory controller recognises full capacity at rated speed.

Suited for fully populated server builds.

The registered RDIMM form factor and ECC function require a server platform that supports registered memory population rules. Builders using consumer motherboards, workstations needing UDIMM or SODIMM modules, or systems limited to lower maximum capacities should select a different kit.

768GB across twelve slots with registered buffering

Twelve modules fill every slot on the H13SST-GC while the registered design offloads the memory controller for stable operation at full population. ECC corrects single-bit errors on the fly to prevent silent data corruption. Systems needing more than 768GB or a different DIMM count must consult the motherboard manual for supported configurations.

How it compares

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

Price $24,329.99
Pricier than about 92% 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 $31.68 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 numberMR44800-924K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 12 × 64 GB DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What motherboard must I already own for this 12-module 768GB DDR5 kit to be recognised at full capacity?

The kit is validated for the Supermicro H13SST-GC motherboard; the board's memory controller expects exactly this 2Rx4 registered ECC configuration at 1.10 V and CL46.

If I keep older DDR5 RDIMMs in the same Supermicro H13SST-GC, how will this 5600 MHz CL46 kit behave?

All slots will run at the speed of the slowest installed modules, so the new 5600 MHz sticks will down-clock to match the older DIMMs' data rate and latency.

After installing all 12 modules, how can I confirm the system is using the full 768 GB at DDR5-5600?

Check the BIOS memory information screen or run a tool such as dmidecode; it should report 12 × 64 GB RDIMMs operating at 5600 MT/s with CL46 timings.

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