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Sixteen green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 1TB (16x64GB) DDR5 4800 ECC RDIMM THINKMATE GPX-XH20-28S4-8HGX memory upgrade

SKU CH-FEWJ-A4AMA

1TB DDR5 4800 ECC registered server memory kit with sixteen 64GB modules for Thinkmate GPX-XH20-28S4-8HGX

  • Total capacity1 TB (16 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1 TB capacity across 16 modules of 64 GB each
  • DDR5 4800 speed rated at PC5 38400 for high throughput
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw per module
  • Validated for Thinkmate GPX-XH20-28S4-8HGX GPU-optimised servers

1TB DDR5 ECC RDIMM kit for Thinkmate GPX-XH20

This 1 TB kit contains sixteen 64 GB DDR5 4800 registered DIMMs built for the Thinkmate GPX-XH20-28S4-8HGX GPU-optimised server. ECC and registered buffering protect data integrity in multi-socket, memory-heavy workloads. It is not suited for desktop boards that require unbuffered non-ECC modules.

DDR5 4800 registered ECC limits capacity

The DDR5 4800 standard tops out at PC5-38400 bandwidth with CL40 latency at 1.1 V, so total throughput is fixed by the memory controller and cannot exceed this kit's rated speed. Registered signalling adds one cycle of command delay, and ECC consumes extra bits per transfer, so raw bandwidth is lower than unbuffered equivalents at the same clock.

Sixteen 2Rx4 modules fill every slot on the target

The kit delivers exactly 1 TB across sixteen dual-rank 2Rx4 modules, matching the full population the Thinkmate GPX-XH20-28S4-8HGX supports. Builders needing a different total capacity or a mixed-rank configuration must choose another kit, because this part number only ships as a complete sixteen-module set.

How it compares

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

Price $28,017.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (16 × 64 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $28.02 per GB
Pricier than about 79% 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 numberMR38400-924K16
Total capacity1 TB (16 × 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 items1 TB (16 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I pick the 16 x 64 GB kit or a smaller capacity for my THINKMATE GPX-XH20-28S4-8HGX?

The 1 TB kit fills 16 slots with 64 GB 2Rx4 modules, giving maximum registered ECC capacity for GPU-optimised workloads on this platform.

What does DDR5 4800 CL40 deliver in a live server?

The modules run at 4800 MT/s with CAS 40 latency at 1.1 V, providing registered ECC bandwidth suited for sustained compute and GPU data movement.

How does the 288-pin RDIMM interface limit speed and capacity?

The 288-pin DDR5 RDIMM form factor carries the 4800 MT/s PC5-38400 signal; registered buffering allows the 16-module 1 TB population without signal degradation.

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