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Four green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (4×128GB) DDR5 4800 CL40 ECC Registered RDIMM for Supermicro H14DST-F

SKU CH-6ZRS-NF17V

A 512 GB DDR5 ECC registered RDIMM kit of four 128 GB modules running at 4800 MT/s with CL40 latency and 1.1 V for the Supermicro H14DST-F 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 30 more
  • 512 GB total capacity from four 128 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency matches the board's rated timing exactly
  • Registered ECC architecture offloads the controller and corrects single-bit errors automatically
  • 10 V operation and 2Rx4 organisation follow the H14DST-F memory population rules
  • 288-pin RDIMM form factor fits the Supermicro H14DST-F DIMM slots precisely

Exact-match DDR5 kit for Supermicro H14DST-F

This 512GB kit contains four 128GB DDR5-4800 RDIMMs built to the precise rank, voltage and timing the server's memory controller expects. Each module is a 2Rx4 Registered ECC DIMM operating at 1.1V with CL40 latency. The 288-pin form factor matches the board's requirement exactly.

Who this suits and who should look elsewhere

It suits administrators populating every slot on a Supermicro H14DST-F motherboard with the maximum supported capacity of registered ECC memory. It is not for systems that require unbuffered UDIMMs, SODIMMs, or a different DDR generation. Builders needing lower density per module or a different pin count should choose another kit.

Behaviour under sustained load

Registered architecture offloads the memory controller so all four slots remain stable when fully populated at rated speed. ECC corrects single-bit errors on the fly, preventing silent data corruption during long-running workloads. The 1.1V operating voltage keeps power draw consistent across extended operation.

How it compares

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

Price $14,664.99
Pricier than about 90% 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 $28.64 per GB
Pricier than about 81% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

Other versions of this model

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Questions about this item

Does the Supermicro H14DST-F motherboard need to support DDR5 4800 RDIMM with ECC for this 512GB kit to work?

Yes, the board must accept DDR5 4800 RDIMM modules with ECC and registered buffering, and its memory population rules must allow four 128GB 2Rx4 DIMMs at 1.1V CL40.

Can I mix these 128GB 2Rx4 DDR5 4800 RDIMMs with smaller DDR5 RDIMMs already installed in the H14DST-F?

Mixing ranks and capacities is only supported if the motherboard manual lists the specific population order; otherwise the system may not boot or may run at reduced speed.

After installing all four modules, how do I confirm the server sees the full 512GB at DDR5 4800 with ECC active?

Check the BIOS memory information page — it should report 512GB total, 4800 MT/s speed, CL40 timing, 1.1V voltage, and ECC enabled for each DIMM.

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