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Four green DDR5 RDIMM modules without heat spreaders, 288-pin, 128GB each

NEMIX RAM

NEMIX RAM DDR5 512GB 4x128GB 6400MHz CL52 1.1V ECC RDIMM AS-2116GT-HNTF

SKU CH-WRTG-D940R

A 512GB registered DDR5 ECC kit of four 128GB modules running at 6400MHz CL52 1.1V for SuperMicro GrandTwin A+ AS-2116GT-HNTF servers

  • Total capacity512 GB (4 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 512GB total capacity scales enterprise workloads with four 128GB modules
  • DDR5 6400MHz speed delivers high bandwidth for data-intensive applications
  • ECC registered design protects data integrity in mission-critical server environments
  • 1V operation reduces power draw across large memory deployments
  • Validated for Supermicro GrandTwin A+ Server AS-2116GT-HNTF compatibility

512GB DDR5 ECC RDIMM kit for Supermicro GrandTwin

This 512GB kit contains four 128GB DDR5 registered DIMMs rated at 6400MHz with CL52 latency and 1.1V operation. Each module uses a 2Rx4 organisation and 288-pin form factor. The memory is validated for the Supermicro GrandTwin A+ Server AS-2116GT-HNTF platform.

Replaces lower-capacity or slower DDR5 RDIMM sets

Moving from smaller RDIMM kits or lower-frequency modules to this 512GB configuration increases total memory bandwidth and allows larger datasets to remain in RAM. The upgrade is worthwhile when workloads exceed current capacity or when 6400MHz speed matches the server's supported memory bus.

Verify DDR5 RDIMM slot count

Confirm the motherboard provides enough 288-pin DDR5 RDIMM slots for four modules and that the BIOS accepts 128GB per slot at 6400MHz. Check that the system requires registered ECC memory and operates at 1.1V. Unbuffered or non-ECC DIMMs will not function in this server.

How it compares

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

Price $17,484.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $34.15 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 numberMR51200-724K4
Total capacity512 GB (4 × 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 items512 GB (4 × 128 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 288-pin DDR5 RDIMM form factor fit the SuperMicro GrandTwin AS-2116GT-HNTF memory slots?

Yes. The kit uses the standard 288-pin DDR5 RDIMM form factor that matches the registered DIMM slots in the SuperMicro GrandTwin A+ AS-2116GT-HNTF server.

What installation step is often missed when seating these 128 GB 2Rx4 registered modules?

Align the module key notch with the slot, press straight down until both side latches click, then verify in BIOS that all four 128 GB modules appear at 6400 MHz with ECC active.

When should the 1.10 V DDR5 ECC RDIMMs be replaced in a 24/7 server workload?

Replace modules if ECC corrected-error counts rise steadily, if the system logs uncorrectable memory errors, or if the server fails to train at 6400 MHz after a cold boot.

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