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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 ECC RDIMM THINKMATE SuperServer 421GE-TNRT3 memory upgrade

SKU CH-RD69-9YBHB

A 64 GB DDR5 4800 registered ECC kit of four 16 GB modules at CL40 and 1.10 V for ThinkMate SuperServer 421GE-TNRT3

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity from four 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • 10 V operation reduces power draw
  • 288-pin RDIMM fits ThinkMate SuperServer 421GE-TNRT3

64 GB DDR5 ECC RDIMM kit for THINKMATE SuperServer

This 64 GB kit contains four 16 GB DDR5 4800 registered DIMMs built for the THINKMATE SuperServer 421GE-TNRT3. Each module runs at 1.10 V with CL40 latency and provides ECC error correction for data integrity. The 288-pin RDIMM form factor fits the server's memory slots directly.

Sustained load behaviour with registered ECC modules

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC detects and corrects single-bit errors in real time, preventing silent data corruption under heavy workloads. The 1Rx8 organisation and 1.10 V voltage support stable throughput across all four slots.

CL40 latency at DDR5 4800 determines responsiveness

CAS latency of 40 cycles at 4800 MT/s sets the timing floor for every memory access. Lower latency would improve response time, but this specification is fixed for the kit. Buyers who need tighter timings must choose a different module.

How it compares

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

Price $1,898.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.67 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 numberMR38400-618K4
Total capacity64 GB (4 × 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 items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 1.10 V DDR5 4800 kit draw when the SuperServer 421GE-TNRT3 runs all day?

Each 16 GB module operates at 1.10 V DDR5 standard voltage; total system draw depends on the platform's memory controller and workload.

What must the ThinkMate SuperServer 421GE-TNRT3 already have for this 4 x 16 GB RDIMM kit to work?

The server needs four free 288-pin DDR5 RDIMM slots and a BIOS that supports PC5-38400 CL40 1Rx8 registered ECC modules.

Will the CL40 1Rx8 registered ECC modules run alongside other DDR5 RDIMMs I keep in the same server?

Mixing ranks, latencies or voltages can prevent boot; populate all four slots with this matched kit for guaranteed stability.

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