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 in a row

NEMIX RAM

NEMIX RAM DDR5 6400 128GB 4x32GB CL52 1.1V ECC Registered RDIMM memory upgrade

SKU CH-45ZF-S7X80

128 GB DDR5 registered ECC server memory kit with four 32 GB modules at 6400 MT/s, CL52, 1.1 V, 288-pin RDIMM, validated for Supermicro H13SVW-NT

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity for memory-intensive workloads with four 32 GB modules
  • DDR5 6400 speed rated at PC5-51200 for high-throughput server tasks
  • Registered ECC design with 2Rx8 organisation corrects single-bit errors on the fly
  • 1 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor verified for Supermicro H13SVW-NT motherboard

Targeted Server Upgrade

This 128 GB kit delivers four 32 GB DDR5 Registered ECC RDIMMs built for the Supermicro H13SVW-NT motherboard. The modules match the board's required 288-pin registered form factor and 2Rx8 rank structure so the memory controller recognises every slot at full capacity.

Registered ECC Stability

Registered buffering offloads the memory controller, allowing all four slots to run fully populated at the rated 6400 MT/s without signal degradation. On-die ECC corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots in production workloads.

DDR5 6400 CL52 1.1 V

The kit operates at DDR5 6400 (PC5 51200) with CL52 latency at 1.1 V, the exact speed, timing and voltage the platform expects. Builders needing a different data rate, lower latency or unbuffered DIMMs must select another part.

How it compares

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

Price $4,981.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $38.92 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 128GB DDR5 ECC RDIMM kit need any firmware updates or component replacements during its service life?

The modules are a fixed hardware kit with no user-serviceable parts; ECC corrects single-bit errors on the fly, and the registered buffer reduces electrical load on the memory controller, so no scheduled maintenance or replacements are required.

What limit appears first when all four 32GB RDIMMs run continuously at DDR5 6400 CL52?

The memory controller’s maximum supported rank count and population rules for the Supermicro H13SVW-NT motherboard determine the practical ceiling; once every slot is filled with 2Rx8 modules at rated speed, further capacity cannot be added without changing the platform.

How much heat and power does the 1.1V registered ECC kit generate under sustained load?

Operating at 1.1V with no heat spreaders, the 4x32GB RDIMMs draw minimal power per module; the registered buffer shifts drive current off the CPU memory controller, so total thermal output stays low even during all-day operation.

More in Model-Specific Memory Upgrades

Similar items