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
Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 1.1V 288-Pin ECC RDIMM ThinkMate memory upgrade

SKU CH-3PDD-T9ACA

Four 128 GB DDR5 registered ECC modules at 4800 MT/s CL40 1.1 V for ThinkMate rackmount servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512GB total capacity scales memory-heavy workloads
  • ECC registered design protects data integrity under load
  • DDR5 4800 speed feeds bandwidth-hungry server CPUs
  • 1V operation reduces power draw per module
  • 4Rx4 organisation maximises density in 288-pin slots

ThinkMate DDR5 4800 ECC RDIMM Kit

This 512GB kit uses four 128GB registered DDR5 modules built for ThinkMate RAX-QE12 rackmount servers. ECC and registered signalling protect data integrity in multi-socket platforms running virtualisation, databases or high-throughput storage workloads.

288-Pin RDIMM Form Factor

Each module fits a standard DDR5 RDIMM slot and operates at 1.1V CL40 without a heat spreader. The registered buffer reduces electrical load on the memory controller, freeing headroom for fully populated channels in dense server configurations.

512GB Total Capacity

Four ranks per module (4Rx4) deliver maximum density per slot, handling large in-memory datasets and heavy container consolidation. Headroom ends when the platform reaches its maximum supported memory per socket or when workloads demand speeds above DDR5 4800.

How it compares

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

Price $16,028.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $31.31 per GB
Pricier than about 90% 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 numberMR38400-744K4
Total capacity512 GB (4 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will 4800 MT/s CL40 become the bottleneck under sustained server workloads?

The modules run at 4800 MT/s with CL40 latency; sustained throughput is limited by that speed and timing combination.

How much heat do four 1.1 V RDIMMs add when the rackmount runs continuously?

Each 128 GB module operates at 1.1 V without a heat spreader, so total thermal load depends on chassis airflow and DIMM density.

Does the ThinkMate RAX-QE12 need a specific BIOS revision before accepting this 512 GB kit?

The kit is validated for the ThinkMate RAX-QE12; install all four 288-pin RDIMMs in the supported slots per the system manual.

More in Model-Specific Memory Upgrades

Similar items