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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 256GB (4×64GB) 6400 CL52 1.1V 2Rx4 Supermicro H13SRH

SKU CH-Q0CV-23VM1

256 GB DDR5 ECC registered RDIMM kit (4×64 GB) at 6400 MT/s CL52 1.1 V 2Rx4, validated for Supermicro H13SRH motherboards

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from four 64 GB modules
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • Registered ECC RDIMM for enterprise-grade stability
  • 2Rx4 dual-rank organisation enables full 256 GB population
  • 288-pin form factor validated for Supermicro H13SRH motherboard

Purpose-built server kit

This 256 GB kit contains four 64 GB DDR5 registered DIMMs built for the Supermicro H13SRH motherboard. It targets administrators who need maximum supported capacity in a validated configuration.

Registered ECC constraints

Registered buffering lets the memory controller drive all four slots at the rated 6400 MT/s without signal degradation. ECC corrects single-bit errors on the fly, but the modules require a platform that explicitly supports registered DDR5 RDIMMs.

Capacity and rank match

The 2Rx4 organization across four modules delivers the full 256 GB only when the motherboard’s population rules allow this rank count per channel. Systems limited to lower ranks or fewer slots cannot use the kit at its rated density.

How it compares

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

Price $8,442.99
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 $32.98 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 buy the 256 GB kit or pick smaller modules to reach the same total?

The 256 GB kit ships as four matched 64 GB RDIMMs tested together for the Supermicro H13SRH, so the memory controller sees identical rank, voltage and timing on every slot and boots at the rated DDR5 6400 speed without manual tuning.

What does the DDR5 6400 rating actually deliver inside the H13SRH?

On that motherboard the kit runs at 6400 MT/s with CL52 latency at 1.1 V, giving the full PC5-51200 bandwidth the platform expects when all four slots are populated with 2Rx4 registered ECC modules.

Is the 288-pin RDIMM interface the limiting factor for speed or capacity on this board?

The 288-pin registered DDR5 form factor is exactly what the H13SRH requires; it supports the kit's 6400 MT/s data rate and 256 GB total capacity when populated per the board's memory-population rules.

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