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Two green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 256GB (2x128GB) 4800MHz CL40 Supermicro H13SSL-NT

SKU CH-PSYV-CQ99A

256 GB DDR5 ECC registered DIMM kit (2 × 128 GB) at 4800 MHz CL40, 1.1 V, validated for Supermicro H13SSL-NT

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 24 more
  • 256 GB total capacity from a 2 x 128 GB kit for maximum server density
  • DDR5 4800 speed with CL40 latency matches the board's rated timing exactly
  • Registered ECC RDIMM architecture offloads the memory controller and corrects single-bit errors
  • 1 V operation reduces power draw across fully populated DIMM slots
  • Verified fit for Supermicro H13SSL-NT with 288-pin RDIMM form factor required by the motherboard

Supermicro H13SSL-NT Compatible Kit

This 256GB kit contains two 128GB DDR5 RDIMMs built for the Supermicro H13SSL-NT motherboard. Registered ECC modules operate at 1.1V with CL40 timing. The 288-pin form factor matches the board's memory slots exactly. System administrators upgrading this specific platform receive the precise rank and voltage the memory controller expects.

Registered 2Rx4 Architecture

Each module uses a 2Rx4 organisation with registered buffering that reduces electrical load on the memory controller. This allows full-capacity population across all supported slots without signal degradation. ECC circuitry detects and corrects single-bit errors in flight. The combination prevents silent data corruption during critical workloads.

Sustained Server Operation

Registered buffering maintains signal integrity when every slot is populated at the rated 4800 MT/s speed. ECC correction runs continuously without pausing the memory subsystem. The 1.1V operating voltage keeps power draw stable during extended compute passes. Modules without heat spreaders rely on chassis airflow for thermal management.

How it compares

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

Price $7,171.99
Pricier than about 83% 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 $28.02 per GB
Pricier than about 79% 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 numberMR38400-724K2
Total capacity256 GB (2 × 128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What does 4800MHz mean once the kit is installed in the Supermicro H13SSL-NT?

The modules run at DDR5-4800 (PC5-38400) with CL40 latency and 1.1V, delivering the rated throughput the board's memory controller expects when fully populated.

How does the 288-pin RDIMM interface limit or enable performance on this platform?

Registered (buffered) 288-pin DDR5 RDIMMs offload the memory controller so every slot runs fully populated at 4800MHz while ECC corrects single-bit errors on the fly.

What physical space and slot layout does the 2x128GB kit need on the H13SSL-NT?

Two 288-pin DDR5 RDIMM slots following the motherboard's population order; each module is a standard-height registered DIMM without a heat spreader.

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