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Two green DDR5 RDIMM sticks, black chips, no heat spreaders, 288 pins

NEMIX RAM

NEMIX RAM THINKMATE 256GB (2x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-6NPG-AM4EP

A 256GB DDR5 server memory kit with two 128GB ECC registered modules running at 4800MHz CL40 for ThinkMate systems

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB kit expands server capacity for heavy workloads
  • Two 128 GB modules populate dual-channel slots efficiently
  • DDR5 4800 speed delivers 38400 MT/s data throughput
  • ECC registered design corrects errors to protect data integrity
  • 1 V operation reduces power draw in dense configurations

ThinkMate DDR5 4800 ECC RDIMM kit

This 256 GB kit provides two 128 GB registered DDR5 modules built for ThinkMate Supermicro SuperServer 521C-NR systems. Each module runs at 4800 MT/s with CL40 latency at 1.1 V and uses a 4Rx4 organisation with on-board ECC for data integrity.

Suited for servers needing maximum registered

The 4Rx4 density and registered buffer target high-capacity server boards that accept 288-pin DDR5 RDIMMs. Workstations or desktops requiring unbuffered DIMMs, lower-density ranks, or non-ECC memory cannot use this kit.

4Rx4 rank organisation decides compatibility

The quad-rank x4 layout determines whether the memory controller can address the full 256 GB; boards limited to dual-rank or single-rank modules will not recognise the full capacity.

How it compares

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

Price $7,604.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $29.71 per GB
Pricier than about 84% 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 numberMR38400-744K2
Total capacity256 GB (2 × 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 items256 GB (2 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 256 GB kit or a smaller capacity for my Thinkmate server?

The kit provides 256 GB total using two 128 GB modules; choose it if your workload needs that much registered ECC memory and your motherboard has two free DDR5 RDIMM slots.

What does the 4800 MHz rating mean when the modules are installed in a Thinkmate Supermicro 521C-NR?

The modules run at DDR5 4800 with a CAS latency of 40 at 1.10 V, delivering PC5-38400 bandwidth as long as the server's memory controller supports that speed.

How does the 288-pin DDR5 RDIMM interface limit the memory configuration?

The 288-pin registered DDR5 form factor fits only DDR5 RDIMM slots; each module is a 4Rx4 device, so the memory controller must support quad-rank registered modules to use both sticks.

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