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
Four green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 128GB 4x32GB DDR5 6400MHz CL52 ECC Registered RDIMM memory upgrade

SKU CH-J13M-152YC

128 GB DDR5-6400 ECC registered RDIMM kit of four 32 GB modules at CL52 and 1.1 V, validated for ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB capacity in a matched 4 × 32 GB kit for full server population
  • DDR5 6400 MHz speed with CL52 latency for rated bandwidth performance
  • Registered ECC design corrects single-bit errors and buffers the memory controller
  • 1 V operation at 1Rx4 rank for exact controller compatibility
  • Validated for ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards

Exact-fit server kit

This 128 GB kit contains four 32 GB DDR5-6400 registered ECC RDIMMs built to the precise 1Rx4, 1.1 V, CL52 specification that ASRock Rack GNRD16DNO and GNRD16QM3-NL motherboards require. The modules arrive new and are validated for full-capacity recognition at rated speed on those platforms.

Registered ECC DDR5 limits

Registered buffering lets the memory controller drive every slot at full population without signal degradation, while on-die ECC corrects single-bit errors before they reach the OS. DDR5-6400 (PC5-51200) is the maximum JEDEC data rate this kit supports; any higher frequency would need motherboard and CPU support not guaranteed by this specification.

Verify before ordering

Confirm your server or motherboard manual lists 128 GB total capacity, 1Rx4 registered DIMMs, and the exact population sequence for four modules. The 288-pin RDIMM form factor will not fit UDIMM or SODIMM slots, and boards limited to lower speeds or unbuffered memory cannot use this kit.

How it compares

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

Price $4,455.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $34.81 per GB
Pricier than about 90% 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 numberMR51200-314K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 128GB kit or a different capacity for my ASRock Rack GNRD16DNO?

This kit provides 128GB total across four 32GB modules. Check your motherboard manual for the maximum supported capacity and approved population rules before deciding.

What does the DDR5 6400MHz rating mean once the modules are installed in the server?

The modules will run at 6400 MT/s with CL52 latency at 1.1V, delivering the full rated throughput the memory controller expects when all four slots are populated.

How does the 288-pin RDIMM interface and registered design affect what the system can do?

The 288-pin RDIMM form factor fits only DDR5 RDIMM slots. Registered buffering lets the memory controller drive all four slots at full capacity, while ECC corrects single-bit errors on the fly.

More in Model-Specific Memory Upgrades

Similar items