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Four green DDR5 RDIMM modules without heat spreaders in a 256GB kit

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 4x64GB CL52 1.1V 2Rx4 ECC Registered RDIMM Supermicro H14SHM memory upgrade

SKU CH-BR4J-QANEK

256GB quad-channel kit of DDR5-6400 registered ECC RDIMMs at CL52 and 1.1V for Supermicro H14SHM servers

  • 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 for maximum server density
  • DDR5-6400 speed with CL52 latency delivers rated throughput for H14SHM
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 10 V operation matches the board's memory controller specification exactly
  • 288-pin RDIMM form factor ensures mechanical and electrical fit in Supermicro H14SHM

Exact-match DDR5 upgrade

This 256GB kit delivers four 64GB DDR5 6400 modules at CL52 and 1.1V. Registered ECC RDIMM construction matches the Supermicro H14SHM memory controller so the full capacity is recognised at rated speed.

Registered RDIMM daily impact

Registered buffering offloads the controller when every slot is populated, while ECC corrects single-bit errors before they cause corruption or reboots. The 288-pin RDIMM form factor is the only type this motherboard accepts, not UDIMM or SODIMM.

Pre-order configuration check

Server memory support varies by model. Consult the system or motherboard manual for approved capacities, DIMM population order and installation steps before purchase to ensure correct fitment.

How it compares

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

Price $8,205.99
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 $32.05 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

What speed does the DDR5 6400 PC5-51200 interface actually run at on the Supermicro H14SHM?

The kit is rated for DDR5 6400 (PC5-51200) and will operate at that speed when the motherboard memory controller supports the full 6400 MT/s data rate.

Does the 288-pin RDIMM form factor fit the Supermicro H14SHM DIMM slots without adapters?

Yes. The modules are standard 288-pin registered RDIMMs, which is the exact form factor the H14SHM requires; no UDIMM or SODIMM adapter is needed.

What population order should I follow when installing all four 64 GB modules?

Install the four RDIMMs in the slot sequence specified in the Supermicro H14SHM manual; the board’s population rules determine which channels fill first for full 256 GB recognition.

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