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Green circuit board DDR5 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 48GB DDR5 6400MHz PC5-51200 2Rx8 CL52 1.1V ECC RDIMM memory upgrade

SKU CH-R2N9-RGGMN

48GB DDR5 6400MHz registered ECC RDIMM with CL52 latency and 1.1V operation, validated for Supermicro H13SRA-F and H13SRA-TF motherboards

  • Total capacity48 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 48GB

Show 6 more
  • Exact DDR5-6400 CL52 1.1 V spec matches Supermicro H13SRA-F/TF controllers
  • 48 GB 2Rx8 registered ECC RDIMM runs every slot fully populated
  • Registered architecture offloads controller for stable full-capacity operation
  • ECC corrects single-bit errors preventing silent data corruption
  • Lifetime replacement warranty with US-based technical support included

Exact-match server upgrade

This 48GB DDR5 6400MHz PC5-51200 module is a 2Rx8 Registered ECC RDIMM built to the precise rank, voltage and timing the Supermicro H13SRA-F and H13SRA-TF motherboards expect. It operates at 1.1V with CL52 latency and uses the 288-pin form factor required by these boards so the memory controller recognises full capacity at rated speed.

Ideal for capacity-bound workloads

It suits administrators expanding memory on the listed Supermicro platforms where registered ECC and the 2Rx8 organisation are mandated by the memory population rules. Builders needing unbuffered UDIMMs, SODIMMs, non-ECC modules or a different rank configuration should look elsewhere because this module will not function in those slots.

Verify population rules first

Consult the system or motherboard manual for supported capacities per slot, approved DIMM installation order and any BIOS version requirements before ordering. The registered architecture allows full-slot population but the exact sequence and maximum total capacity are defined by the platform documentation.

How it compares

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

Price $1,065.99
Pricier than about 61% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $22.21 per GB
Pricier than about 67% 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 numberMR51200-4828K1
Total capacity48 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 items48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

My Supermicro H13SRA-F board needs DDR5 RDIMMs — will this 48GB 6400MHz kit work without a BIOS update?

The module is spec-matched to the Supermicro H13SRA-F and H13SRA-TF motherboards at DDR5 6400 PC5-51200, 2Rx8 registered ECC, 1.1V, CL52, so the board's memory controller recognises it at full capacity and rated speed.

If I populate the remaining slots with other DDR5 RDIMMs of different rank or speed, what happens?

Registered architecture offloads the memory controller, but mixed ranks or speeds force all channels to the lowest common speed and may violate the board's population rules — check the manual for approved DIMM order.

After installation, how do I confirm the kit is running at 6400MHz with ECC active?

In the BIOS or UEFI, verify the memory frequency reads 6400 MT/s (PC5-51200), CAS latency shows CL52, voltage reads 1.1V, and ECC status reports enabled or active.

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