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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM Supermicro H13SVW-NT memory upgrade

SKU CH-HHG9-BHFZ9

A 256GB DDR5 6400 CL52 ECC RDIMM kit built to the Supermicro H13SVW-NT motherboard's exact population rules

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact-match 256 GB kit runs at rated DDR5-6400 speed
  • Verified fit for Supermicro H13SVW-NT motherboard
  • Registered ECC design corrects single-bit errors automatically
  • Four 64 GB dual-rank modules populate every slot fully
  • Lifetime replacement warranty with US-based technical support

Exact-Match Server Upgrade

This 256GB kit contains four 64GB DDR5 RDIMM modules built for the Supermicro H13SVW-NT motherboard. It delivers registered ECC memory at 6400MHz with CL52 latency and 1.10V operation. The 2Rx4 rank structure matches the board's memory controller requirements for full-capacity recognition. System integrators upgrading this specific platform receive the precise specification the firmware expects.

Registered DIMM Population Rules

The motherboard accepts only 288-pin registered DDR5 RDIMMs; unbuffered UDIMMs or SODIMMs will not function. Every slot must follow the manual's approved population order to initialise at the rated 6400MHz speed. Mixing ranks or voltages prevents the memory controller from training correctly. Buyers who cannot confirm their board's exact DIMM sequence should verify the documentation before installation.

2Rx4 Rank Determines Compatibility

The dual-rank 2Rx4 organisation is the single specification that decides whether this kit works in the target system. A different rank count changes the electrical loading on each channel and will cause POST failures or reduced capacity. Only modules presenting 2Rx4 to the memory controller satisfy the Supermicro H13SVW-NT population rules. Systems requiring single-rank or quad-rank DIMMs cannot use this kit.

How it compares

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

Price $8,696.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $33.97 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 4x64GB kit or a different capacity for my Supermicro H13SVW-NT?

The 4x64GB kit provides 256GB total, matching the board's 288-pin RDIMM slots and registered ECC requirements for full-capacity operation.

What does DDR5-6400 CL52 mean for real-world server performance?

The 6400 MT/s data rate and CL52 latency deliver high bandwidth with error correction, letting the memory controller run every slot at rated speed under load.

How does the PC5-51200 standard limit what this kit can do?

PC5-51200 defines the 6400 MT/s peak transfer rate; the registered ECC design ensures stability at that ceiling when all four DIMMs are populated.

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