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Two green DDR5 RDIMM sticks without heat spreaders, 288-pin, 256GB kit

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 6400 CL52 1.1V ECC RDIMM memory upgrade

SKU CH-XYW7-8PAZC

256 GB (2 × 128 GB) DDR5 6400 CL52 1.1 V ECC registered RDIMM kit validated for the Supermicro H13SVW-N motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB kit runs at DDR5-6400 for maximum server throughput
  • CL52 latency and 1.1 V keep power draw low under heavy load
  • 2Rx4 registered ECC corrects single-bit errors to prevent silent data corruption
  • 288-pin RDIMM form factor matches Supermicro H13SVW-N slot requirements exactly
  • Lifetime replacement warranty and free US-based technical support included

Exact-match DDR5 kit for Supermicro H13SVW-N

This 256 GB kit contains two 128 GB DDR5-6400 registered ECC RDIMMs built to the precise rank, voltage and timing the motherboard expects. The modules operate at 1.1 V with CL52 latency and a 2Rx4 organisation so the server recognises the full capacity at rated speed.

Verified fitment and registered ECC stability

The 288-pin RDIMM form factor matches the board's memory population rules and is not interchangeable with UDIMM or SODIMM. Registered architecture offloads the memory controller for reliable operation when every slot is populated, while on-die ECC corrects single-bit errors to prevent silent data corruption and unexpected reboots.

Suits Supermicro H13SVW-N upgrades needing maximum

Builders expanding a compatible Supermicro H13SVW-N platform to 256 GB with registered ECC modules will find the spec-matched kit installs without guesswork. Systems that require unbuffered UDIMMs, SODIMM form factors, non-ECC memory or a different DDR generation cannot use these modules.

How it compares

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

Price $9,607.99
Pricier than about 87% 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 $37.53 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 numberMR51200-724K2
Total capacity256 GB (2 × 128 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 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the Samsung, Micron or Hynix chips on these RDIMMs need replacement under normal server workloads?

The modules use major OEM chips from Samsung, Micron or Hynix and carry a lifetime replacement warranty, so no chip-level maintenance is expected.

What thermal or power limit appears first when the kit runs at DDR5-6400 continuously?

Each DIMM operates at 1.10 V with no heat spreader; sustained loads are limited by the registered buffer and the motherboard's airflow design.

How much fan noise or extra heat should I expect from the 256 GB kit running all day?

The 1.1 V RDIMMs have no heat spreader, so case fans must move enough air across the 288-pin slots to keep temperatures in spec.

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