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Two green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 96GB 2x48GB CL40 1.1V Supermicro H13SSW memory upgrade

SKU CH-XBNJ-KX1SH

96 GB DDR5 4800 ECC registered RDIMM kit (2×48 GB, CL40, 1.1 V) validated for Supermicro H13SSW motherboards

  • Total capacity96 GB (2 × 48 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 96GB 2X48GB

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  • Full 96 GB capacity recognised at rated DDR5-4800 speed
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation matches server memory-controller spec
  • 2Rx8 dual-rank layout enables full-slot population
  • Verified fit for Supermicro H13SSW motherboard

Exact-match upgrade for Supermicro H13SSW

This 96 GB kit provides two 48 GB DDR5 4800 RDIMMs built to the Supermicro H13SSW memory controller specifications. Registered ECC architecture with 2Rx8 organisation ensures full-capacity recognition and single-bit error correction in production workloads. The modules operate at 1.1 V with CL40 timing exactly as the platform expects.

Installation notes and common issues

The 288-pin RDIMM form factor fits only registered DIMM slots; UDIMM or SODIMM sockets will not accept these modules. Server boards often require a specific population sequence across channels, so consult the H13SSW manual for the approved slot order before seating the pair. Mismatched rank or voltage settings in the BIOS can prevent the kit from training at its rated speed.

DDR5 RDIMM practical limits

Registered DDR5 modules add a buffer that stabilises heavy loads but introduces one extra cycle of latency compared with unbuffered memory. The DDR5 4800 JEDEC ceiling caps bandwidth at PC5-38400 per module, so applications needing higher throughput must rely on population density rather than frequency headroom. ECC parity bits reduce usable capacity slightly versus non-ECC equivalents of the same nominal size.

How it compares

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

Price $2,040.99
Pricier than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 96 GB (2 × 48 GB)
Higher than about 65% of the 20,941 comparable items (median 32 GB).
Price per GB $21.26 per GB
Pricier than about 66% 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 numberMR38400-4828K2
Total capacity96 GB (2 × 48 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items96 GB 2 × 48 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I verify the kit is running at DDR5-4800 with CL40 after installation?

Enter the BIOS or use a tool such as CPU-Z to confirm the memory operates at 4800 MT/s with CAS latency 40 and 1.1 V across both 48 GB modules.

What does the package contain and is anything else required?

The kit includes two 48 GB DDR5 288-pin RDIMMs for a total of 96 GB; no additional parts are needed for a supported Supermicro H13SSW configuration.

Which version of this memory should I choose for the H13SSW?

Select the 96 GB 2Rx8 RDIMM kit rated at DDR5-4800 CL40 1.1 V — it matches the board's registered ECC requirements and population rules.

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