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Four green DDR5 RDIMM sticks without heat spreaders, 288-pin, 128GB each

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 512GB 4x128GB CL40 1.1V 2Rx4 memory upgrade

SKU CH-5VMB-Q7TAF

A 512 GB DDR5-4800 registered ECC kit in four 128 GB modules at CL40 and 1.1 V, validated for the Supermicro H13SVW-NT-OS2 motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 12 more
  • 512 GB total capacity with four 128 GB modules for maximum density
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • CL40 latency at 1.1 V matches the motherboard's memory controller expectations
  • 288-pin RDIMM form factor fits the Supermicro H13SVW-NT-OS2 board exactly

Exact-match DDR5 upgrade kit

This 512GB kit contains four 128GB DDR5 4800 RDIMMs built to the precise rank, voltage and timing the Supermicro H13SVW-NT-OS2 motherboard expects. Registered ECC architecture offloads the memory controller and corrects single-bit errors so fully populated slots run at rated speed without silent data corruption. It is for administrators who need maximum capacity on this specific platform.

Replaces partial or mismatched memory

The kit upgrades from smaller-capacity RDIMMs, mixed-rank sets or non-ECC modules that force the board to down-clock or disable slots. The jump is worth it when the workload demands the full 512GB at DDR5 4800 with CL40 latency and 1.1V operation. It is not for systems that only accept UDIMMs, SODIMMs or lower-density registered DIMMs.

Slot-in RDIMM installation

Install by following the motherboard manual's population order for four 2Rx4 registered modules; the 288-pin form factor seats like any standard DDR5 RDIMM. What usually goes wrong is ignoring the approved slot sequence or mixing ranks, which prevents the system from recognizing the full capacity. Verify the manual before starting.

How it compares

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

Price $15,748.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $30.76 per GB
Pricier than about 88% 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 numberMR38400-724K4
Total capacity512 GB (4 × 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 items512 GB 4 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Does the 288-pin RDIMM form factor fit the Supermicro H13SVW-NT-OS2 motherboard slots?

Yes, the 288-pin Registered DIMM form factor matches the slots on the Supermicro H13SVW-NT-OS2 motherboard; UDIMM or SODIMM modules will not fit.

What population order does the manual require for the four 128GB 2Rx4 modules?

Install the four 2Rx4 modules in the exact slot sequence shown in the Supermicro H13SVW-NT-OS2 manual; wrong order can prevent the system from recognising the full 512GB capacity.

When should I reseat or replace a module if ECC logs show corrected errors?

Reseat the 288-pin RDIMM if corrected-error counts rise on a specific slot; replace the module if errors persist after reseating and firmware updates.

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