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Eight green DDR5 RDIMM sticks in static bags

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM Thinkmate memory upgrade

SKU CH-S5T5-PA25V

Eight 16 GB DDR5 4800 CL40 ECC registered DIMMs at 1.1 V for Thinkmate RAX-XS4-21S4 servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across 8 modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for Thinkmate RAX-XS4-21S4 rackmount server

Server memory kit for Thinkmate RAX-XS4-21S4

This 128GB kit contains eight 16GB DDR5 RDIMMs rated at 4800MT/s with CL40 latency and 1.10V operation. Registered ECC circuitry protects data integrity in mission-critical workloads. The modules use major OEM Samsung, Micron or Hynix components and carry part number MR38400-618K8.

Ideal for Thinkmate rackmount upgrades

The kit is validated for the Thinkmate RAX-XS4-21S4 server and matches its DDR5 RDIMM slot requirements. IT teams managing that platform can deploy the full 128GB capacity across all channels. Buyers who need unbuffered UDIMMs, lower CL timing, a different pin count or a non-ECC configuration should look at something else.

DDR5 4800 CL40 288-pin ECC RDIMM specification

The registered 288-pin DDR5 interface with CL40 timing and 1Rx8 organisation is the single parameter that decides fitment. Only systems accepting DDR5 ECC RDIMMs at this speed and voltage will recognise the modules. Any platform requiring UDIMM, LRDIMM or a different DDR generation cannot use this kit.

How it compares

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

Price $3,272.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.57 per GB
Pricier than about 70% 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 numberMR38400-618K8
Total capacity128 GB (8 × 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 items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include all eight 16 GB modules or must any sticks be purchased separately?

The package contains the full 128 GB kit as eight matched 16 GB DDR5 RDIMMs; nothing else is required to reach the stated capacity.

Why choose this 128 GB CL40 kit over a lower-capacity DDR5 option for the Thinkmate RAX-XS4-21S4?

The eight-module 128 GB configuration fills every slot at the server's supported 4800 MT/s speed while delivering registered ECC reliability for heavy workloads.

What does the 4800 MT/s rating mean once the modules are installed in the Thinkmate rackmount server?

The memory will run at the platform's native DDR5-4800 data rate with CL40 latency at 1.1 V, providing the maximum qualified throughput for this system.

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