We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twelve green DDR5 RDIMM modules, bare chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM THINKMATE DDR5 4800 ECC RDIMM 768GB (12x64GB) CL40 1.1V 2Rx4 288-Pin memory upgrade

SKU CH-D49A-H7DYT

A 768GB DDR5-4800 registered ECC memory kit with twelve 64GB modules at CL40 and 1.1V for ThinkMate Supermicro servers

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.10 V operating voltage reduces power draw
  • Qualified for ThinkMate Supermicro SuperServer 421GE-TNRT and 421GE-TNRT3 systems

Server DDR5 768GB Kit

This NEMIX RAM kit provides 768GB of DDR5 4800 memory across twelve 64GB registered DIMMs. It is built for ThinkMate Supermicro SuperServer 421GE-TNRT and 421GE-TNRT3 platforms requiring ECC RDIMM modules.

Thermals Power Noise

Operating at 1.1V, these modules draw minimal power for their density and run without heat spreaders in airflow-cooled server chassis. Registered buffering and ECC maintain signal integrity under sustained enterprise workloads without adding acoustic load.

12x64GB 2Rx4 CL40

The kit delivers twelve dual-rank 2Rx4 modules at CL40 latency, filling all available slots on compatible ThinkMate SuperServer boards. Builders needing fewer modules, lower capacity per DIMM, or unbuffered memory must choose a different configuration.

How it compares

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

Price $19,800.99
Pricier than about 91% 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 $25.78 per GB
Pricier than about 71% 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 lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 12 DDR5 RDIMMs into the Supermicro 421GE-TNRT and which step is often missed?

Power down, open the chassis, align each 288-pin module with the slot key, press firmly until both latches click, then verify all 12 show in BIOS — the step most often missed is seating every latch fully.

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

The modules have no heat spreaders and no moving parts; only periodic dust removal from the DIMM slots is required, and replacement occurs only if a module fails ECC correction.

At what point does the CL40 1.1V DDR5 4800 kit hit its first sustained-use limit?

The primary limit is the JEDEC 4800 MT/s data rate and CL40 latency; under continuous heavy load the memory controller reaches its maximum throughput before thermal or voltage thresholds.

More in Model-Specific Memory Upgrades

Similar items