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Eight green DDR5 RDIMM sticks, black chips, no heat spreaders, 288-pin, 768GB kit

NEMIX RAM

NEMIX RAM 768GB (8x96GB) DDR5 4800 CL40 ECC RDIMM for Thinkmate RAX-XS4-21S4 memory upgrade

SKU CH-976E-XYV9G

768 GB of DDR5 ECC registered server memory in an eight-module kit running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity768 GB (8 × 96 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from eight 96 GB modules for large-scale workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for high-throughput server tasks
  • ECC registered RDIMM design with CL40 latency for data integrity and stability
  • 1 V operation reduces power draw in dense rackmount deployments
  • Validated for Thinkmate RAX-XS4-21S4 compatibility ensuring reliable installation

768GB DDR5 4800 ECC RDIMM Kit

This kit provides 768GB of DDR5 4800 registered ECC memory in eight 96GB modules. It is built for the Thinkmate RAX-XS4-21S4 rackmount server using 288-pin RDIMMs. The modules run at 1.1V with CL40 latency and 2Rx8 organisation. They use major OEM chips from Samsung, Micron or Hynix and have no heat spreaders.

Suited for Thinkmate RAX-XS4-21S4 upgrades

This memory suits administrators expanding a Thinkmate RAX-XS4-21S4 to its full 768GB capacity with registered ECC modules. It is not for systems that require unbuffered UDIMMs, non-ECC memory or a different DDR generation. Builders needing lower capacities or consumer desktop memory should look elsewhere.

DDR5 4800 registered ECC compatibility

The single specification that decides fit is DDR5 4800 registered ECC RDIMM compatibility with the Thinkmate RAX-XS4-21S4. The server must accept 288-pin 2Rx8 modules at 1.1V and CL40 timing. If the platform requires a different speed, voltage, rank or form factor, this kit will not work.

How it compares

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

Price $21,669.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (8 × 96 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $28.22 per GB
Pricier than about 79% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-9628K8
Total capacity768 GB (8 × 96 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items768 GB (8 × 96 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I verify the kit runs at 4800 MT/s with CL40 after installation?

Enter the system BIOS or UEFI and confirm the memory frequency reads 4800 MT/s and the CAS latency shows 40; the registered ECC modules will also report corrected errors if any occur.

What ships in the box and do I need anything extra for the Thinkmate RAX-XS4-21S4?

The package contains eight 96 GB DDR5 4800 CL40 288-pin ECC RDIMMs for a total of 768 GB; no additional parts are required for the listed server.

Which capacity version matches the Thinkmate RAX-XS4-21S4 when I need the maximum 768 GB?

Choose the 8-module kit of 96 GB RDIMMs (part number MR38400-9628K8) to reach the full 768 GB supported by the server.

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