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Six green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 6400MHz CL52 2Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-679A-MA2F6

A 768 GB DDR5 registered ECC kit of six 128 GB modules running at 6400 MHz with CL52 latency and 1.1 V operation for Supermicro SYS-122HA-TN-LCC servers

  • Total capacity768 GB (6 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 768GB total capacity supports heavy virtualization workloads
  • 6400MHz DDR5 speed enables high-throughput data processing
  • CL52 latency at 1.1V balances responsiveness with efficiency
  • ECC registered design protects data integrity in critical applications
  • 6x128GB kit validated for Supermicro SYS-122HA-TN-LCC servers

768 GB DDR5 ECC RDIMM kit

This NEMIX RAM kit supplies 768 GB across six 128 GB DDR5 registered DIMMs. Each module runs at 6400 MHz with CL52 latency at 1.10 V and uses a 2Rx4 organisation. The 288-pin RDIMM form factor includes on-die ECC for data integrity in server workloads.

Suited for Supermicro Hyper SuperServer

The memory is validated for the Supermicro Hyper SuperServer SYS-122HA-TN-LCC and will not function in platforms that require unbuffered UDIMMs or a different DDR generation. Buyers who need non-ECC modules, lower-capacity kits or a different pin count should look elsewhere.

6400 MHz CL52 at 1.10 V

The decisive specification is the 6400 MHz CL52 timing at 1.10 V, which must match the server memory controller settings. If the target system demands a different speed grade, latency or voltage, this kit will not be compatible.

How it compares

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

Price $26,872.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $34.99 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 numberMR51200-724K6
Total capacity768 GB (6 × 128 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB (6 × 128 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the six 128 GB DDR5 ECC RDIMMs into the Supermicro SYS-122HA-TN-LCC and what step is often missed?

Power down, open the chassis, align each 288-pin module with the keyed slot and press firmly until both ejector clips lock; the step often missed is populating all six channels in the order shown in the server manual so the memory controller trains at 6400 MT/s.

What maintenance or replacement will the 768 GB registered ECC kit need over its service life?

The modules have no heat spreaders and no moving parts, so no scheduled maintenance is required; replacement is only needed if a DIMM fails, which the ECC logic will flag in the system event log.

What limit appears first when the 6400 MHz CL52 2Rx4 kit runs sustained workloads on the Supermicro Hyper SuperServer?

The CAS latency of 52 cycles at 1.10 V is the first electrical limit reached under continuous load; the registered buffer and ECC logic keep signal integrity within spec before thermal throttling becomes a factor.

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