We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 768GB (12x64GB) ECC RDIMM CL40 1.1V Supermicro H13SST-GC memory upgrade

SKU CH-PTKQ-CFKM1

768GB DDR5 4800 ECC registered RDIMM kit with twelve 64GB modules at CL40 and 1.1V for Supermicro H13SST-GC

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 12X64GB

Show 24 more
  • 768 GB total capacity from 12 matched 64 GB modules
  • DDR5 4800 speed with CL40 latency for rated server performance
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 1 V operation matches the motherboard's voltage requirement exactly
  • 288-pin RDIMM form factor fits the Supermicro H13SST-GC memory slots

NEMIX RAM DDR5 4800 768GB Kit

This 768GB kit contains twelve 64GB DDR5 RDIMM modules built for the Supermicro H13SST-GC motherboard. It is designed for server administrators who need maximum registered ECC capacity in a single validated package. Buyers who need unbuffered UDIMMs or laptop SODIMMs cannot use this kit.

Registered ECC DDR5-4800 CL40 1.1V

The single specification that decides fitment is the registered ECC RDIMM architecture running at DDR5-4800 with CL40 timing at 1.1V. The memory controller expects this exact rank, voltage and timing combination to recognise full capacity and operate at rated speed.

288-Pin RDIMM Installation

Each module uses the standard 288-pin RDIMM form factor that seats directly into the motherboard DIMM slots. The main risk is ignoring the board's population order; the manual must be consulted for supported capacities and approved slot sequence before installation.

How it compares

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

Price $21,320.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.76 per GB
Pricier than about 78% 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 numberMR38400-924K12
Total capacity768 GB (12 × 64 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 items768 GB 12 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Will the 4800 MT/s DDR5 kit run at its rated speed in a fully populated Supermicro H13SST-GC?

The kit is spec-matched to the board's memory controller and population rules, so all twelve slots recognise the modules at the rated DDR5 4800 speed.

What does the PC5-38400 label tell me about real-world bandwidth?

PC5-38400 is the peak transfer rate for DDR5 4800; the registered buffer lets every slot sustain that bandwidth when fully populated.

Does the 288-pin RDIMM form factor fit the H13SST-GC memory slots?

Yes, the motherboard requires 288-pin Registered DIMMs and this kit matches that exact form factor.

More in Model-Specific Memory Upgrades

Similar items