We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Six green 288-pin DDR5 RDIMM modules, no heat spreaders

NEMIX RAM

NEMIX RAM 384GB (6x64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM THINKMATE RAX-XS4-21S4 memory upgrade

SKU CH-ETF5-F8CPZ

384 GB DDR5 server memory kit with six 64 GB ECC registered modules running at 4800 MT/s CL40 for Thinkmate RAX-XS4-21S4

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384GB total capacity from six 64GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers high-throughput data handling
  • ECC registered RDIMM design protects data integrity under heavy workloads
  • 1V operating voltage reduces power draw in 24/7 rack environments
  • Validated for Thinkmate RAX-XS4-21S4 ensuring drop-in compatibility

384GB DDR5-4800 ECC RDIMM kit for Thinkmate

This 384GB kit contains six 64GB DDR5-4800 registered DIMMs with ECC and CL40 latency. The modules run at 1.10V and use a 2Rx4 organisation on 288-pin connectors. They are built for the Thinkmate RAX-XS4-21S4 rackmount server.

Suited for the Thinkmate RAX-XS4-21S4 server

This memory fits the Thinkmate RAX-XS4-21S4 platform that requires registered ECC DDR5 RDIMMs. Systems needing unbuffered UDIMMs, non-ECC modules, different speeds or lower capacities should choose other memory.

288-pin DDR5 RDIMM form factor

The kit uses the 288-pin DDR5 RDIMM form factor with registered buffering and ECC. Only motherboards with DDR5 RDIMM slots supporting 2Rx4 modules at 4800 MT/s can accept these DIMMs.

How it compares

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

Price $10,277.99
Pricier than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $26.77 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 numberMR38400-924K6
Total capacity384 GB (6 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items384 GB (6 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What type of server motherboard is required to install this 384 GB DDR5 4800 CL40 2Rx4 ECC RDIMM kit?

The modules are built for the Thinkmate RAX-XS4-21S4 rackmount server and require a DDR5-compatible motherboard that supports 288-pin registered ECC RDIMMs at 1.1 V.

Will these six 64 GB modules run at their rated 4800 MT/s speed if the server currently uses slower DDR5 RDIMMs?

The kit is rated DDR5-4800 (PC5-38400) CL40; the server memory controller will set the final speed to the lowest common denominator among all installed DIMMs.

How can I confirm the full 384 GB capacity is recognised and ECC is active after installation?

Enter the system BIOS or UEFI and check the memory information screen — it should show 384 GB total and report ECC as enabled or active.

More in Model-Specific Memory Upgrades

Similar items