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Sixteen green DDR5 RDIMM sticks in a tray

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800MHz CL40 1Rx8 ECC RDIMM memory upgrade

SKU CH-DEC1-JVK03

256GB DDR5 ECC registered server kit in sixteen 16GB modules running at 4800MHz CL40 for Thinkmate rackmount systems

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity across 16 modules for high-density server workloads
  • DDR5 4800MHz speed delivers high bandwidth for data-intensive applications
  • ECC registered design corrects errors to protect data integrity
  • 1V operation reduces power draw in dense rackmount deployments
  • Validated for Thinkmate RAX-XS4-21S4 server compatibility

256GB DDR5 ECC RDIMM for Thinkmate servers

This registered DDR5 memory kit provides 256GB across sixteen 16GB modules. It is designed for Thinkmate RAX-XS4-21S4 rackmount servers that require ECC registered DIMMs. The modules operate at 4800MHz with CL40 latency and 1.10V voltage. Each stick uses a 1Rx8 organisation and 288-pin DDR5 form factor.

Suited for Thinkmate rackmounts needing maximum

Administrators expanding a compatible Thinkmate server to its full memory population will use this kit. Systems that do not support registered ECC DDR5 or that have fewer than sixteen DIMM slots cannot use this configuration. Workstations requiring unbuffered memory should select a different module type.

Registered ECC with 1Rx8 organisation

The registered buffer and on-die ECC provide the signal integrity and error correction required by the target server platform. The single-rank 1Rx8 layout allows all sixteen modules to populate the memory channels without exceeding rank limits. Buyers must confirm their motherboard supports registered DDR5 RDIMMs before ordering.

How it compares

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

Price $7,041.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $27.51 per GB
Pricier than about 77% 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 numberMR38400-618K16
Total capacity256 GB (16 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (16 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will these 288-pin DDR5 RDIMMs fit the memory slots in my THINKMATE RAX-XS4-21S4 rackmount server?

Yes, the 288-pin DDR5 RDIMM form factor matches the DIMM slots on the THINKMATE RAX-XS4-21S4, and the registered ECC design is required by that platform.

What is the correct installation sequence for the 16 modules across the server's memory channels?

Populate each channel identically with the same rank count; the 1Rx8 organisation means you should fill one DIMM per channel first, then add the second per channel, following the motherboard manual's slot order.

How do I know when a 16 GB module in this 256 GB kit needs replacement?

ECC corrects single-bit errors silently; when the system logs uncorrectable multi-bit errors or the module fails POST memory test, that specific 16 GB RDIMM should be swapped out.

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