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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 2Rx8 ECC RDIMM THINKMATE RAX-XS4-21S4 memory upgrade

SKU CH-VE1T-XE72W

A 64 GB DDR5 ECC RDIMM kit running at 4800 MT/s with CL40 latency for the Thinkmate RAX-XS4-21S4 server

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB kit expands server capacity for heavy workloads
  • DDR5 4800 speed moves data faster than previous DDR generations
  • CL40 latency keeps response tight under sustained load
  • ECC registered design detects and corrects errors to protect critical data
  • 1 V operation lowers power draw and heat in dense racks

Thinkmate RAX-XS4-21S4 Compatible Memory

This 64 GB kit is built for the Thinkmate RAX-XS4-21S4 rackmount server. It delivers two 32 GB DDR5 4800 registered ECC modules that install in minutes and are validated for mission-critical workloads.

Who Should Use This and Who Should Not

IT teams running the specified Thinkmate platform gain error-correcting registered memory at 1.1 V without compatibility guesswork. Buyers who need unbuffered UDIMM modules, a different DDR5 speed grade, or memory for any other server model should look elsewhere.

The Deciding Specification

Registered ECC RDIMM with 2Rx8 organisation and CL40 latency at DDR5 4800 is the single attribute that determines fit. Only systems that require this exact registered ECC configuration will accept the kit.

How it compares

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

Price $1,751.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.37 per GB
Pricier than about 76% 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 numberMR38400-328K2
Total capacity64 GB (2 × 32 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 items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 64 GB kit or a different capacity for my ThinkMate RAX‑XS4‑21S4?

This kit provides 64 GB as two 32 GB modules, matching the server's validated configuration for registered ECC memory.

What does the DDR5 4800 speed mean once installed in the ThinkMate server?

The modules run at 4800 MT/s with CL40 latency at 1.10 V, delivering the rated PC5‑38400 bandwidth in the registered ECC configuration.

How does the 288‑pin RDIMM interface affect compatibility and performance?

The 288‑pin DDR5 RDIMM form factor with 2Rx8 organisation and registered ECC is the exact interface the ThinkMate RAX‑XS4‑21S4 requires for stable server operation.

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