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Green printed circuit board DDR5 memory module with black chips no heat spreader 288 pin registered ECC

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 CL40 1.1V 1Rx8 288-Pin ECC RDIMM for ThinkMate RAX-XS4-21S4

SKU CH-XW1C-GBDPK

16 GB DDR5 4800 CL40 ECC registered RDIMM for ThinkMate RAX-XS4-21S4 servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16 GB DDR5 4800 MHz for ThinkMate RAX-XS4-21S4
  • ECC registered design protects data integrity in server workloads
  • Low 1.1 V operation reduces power draw and heat
  • Single-rank 1Rx8 layout simplifies memory-channel population
  • 288-pin RDIMM form factor fits the qualified server slots

System-Specific DDR5 RDIMM

This 16 GB DDR5 module runs at 4800 MT/s with CL40 latency and 1.10 V operation. It is built as a registered ECC RDIMM using a 1Rx8 organisation on a 288-pin form factor. The part is validated for the ThinkMate RAX-XS4-21S4 rackmount server.

Upgrade From Non-ECC Or Lower-Capacity DDR5

The registered design and on-die ECC replace standard unbuffered memory that lacks error correction. The jump is worth it when workloads demand data integrity and the platform requires registered modules for stability.

Sustained Load Behaviour

Modules are stress-tested under load to verify reliability during continuous operation. The 1.10 V baseline helps maintain consistent thermals without a heat spreader during extended server duty cycles.

How it compares

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

Price $428.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.81 per GB
Pricier than about 74% 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 numberMR38400-618K1
Total capacity16 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 items16 GB (1 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the 288-pin DDR5 RDIMM fit the ThinkMate RAX-XS4-21S4 memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the ThinkMate RAX-XS4-21S4 server memory slots exactly.

Which orientation notch on the module aligns with the slot key during installation?

The single DDR5 notch on the 288-pin RDIMM lines up with the motherboard slot key; press straight down until the retention clips click.

Will the 1.1 V registered ECC module require any firmware update or battery replacement later?

No firmware update or battery replacement is needed; the module runs at 1.1 V with on-die ECC and has no serviceable parts.

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