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
Two green DDR4 RDIMM sticks with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2 x 128GB) DDR4 3200MHz ECC Registered RDIMM memory upgrade

SKU CH-FENM-J4W59

256 GB dual-module DDR4 kit with ECC and registered buffering for Supermicro X12SPA-TF servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 8 more
  • 256 GB capacity in a 2 x 128 GB kit for high-density server workloads
  • DDR4 3200 MHz PC4-25600 speed rated for full-performance operation
  • CL22 latency and 1.2 V voltage match the memory controller's exact timing requirements
  • ECC and registered design correct single-bit errors and offload the controller for stable full-population runs
  • 288-pin RDIMM form factor verified for the Supermicro X12SPA-TF motherboard

Exact-match DDR4 kit

This NEMIX RAM kit delivers 256GB as two 128GB DDR4-3200 registered ECC RDIMMs. Each module runs at 1.2V with CL22 timing in a 2Rx4 organisation. The 288-pin form factor matches the Supermicro X12SPA-TF motherboard slot and population requirements.

Suited for registered-ECC servers

Server administrators who need the precise rank, voltage and timing combination this board expects will find the kit recognised at full capacity and rated speed. Builders using unbuffered UDIMM or SODIMM slots, or systems that do not support registered ECC modules, cannot use this memory.

Registered ECC with 2Rx4 rank

The registered architecture offloads the memory controller so every populated slot runs at full capacity, while ECC corrects single-bit errors on the fly. This single specification decides whether the kit is the right part for your Supermicro X12SPA-TF configuration.

How it compares

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

Price $1,710.99
Pricier than about 66% 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 $6.68 per GB
Cheaper than about 59% 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 nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-724K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR4 3200 MHz PC4-25600 2Rx4 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin RDIMM modules fit the Supermicro X12SPA-TF motherboard?

Yes, the kit uses the 288-pin Registered DDR4 form factor that the X12SPA-TF requires; it is not a UDIMM or SODIMM, so it matches the board's DIMM slots exactly.

What is the correct installation order for the two 128GB modules on the X12SPA-TF?

Consult the motherboard manual for the approved DIMM population sequence; the board's memory-controller rules dictate which slots must be filled first for full 256GB recognition at DDR4 3200 speed.

Do these ECC Registered modules need any firmware updates or battery replacements over time?

No firmware or battery maintenance is required; the modules are passive DDR4 1.20V components, and ECC error correction operates automatically for the life of the hardware.

More in Model-Specific Memory Upgrades

Similar items