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
Eight green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 4800 ECC RDIMM CL40 1.1V 1Rx4 memory upgrade

SKU CH-AF3E-SW9SQ

A 256 GB kit of eight 32 GB DDR5 4800 ECC registered DIMMs for Supermicro servers

  • Capacity256GB (8 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity scales memory-heavy workloads
  • DDR5 4800 speed feeds data to fast server CPUs
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw per module
  • Validated for Supermicro CloudDC SuperServer systems

256GB DDR5 ECC RDIMM Kit

This 256GB kit contains eight 32GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It operates at 1.10V using 1Rx4 organisation and 288-pin form factor. The modules are validated for Supermicro CloudDC SuperServer platforms including the 621C, 611C and 121C series.

Suited for registered-memory servers only

This memory fits Supermicro systems that require DDR5 registered ECC RDIMMs. It will not work in platforms that accept only unbuffered UDIMMs or earlier DDR generations. Buyers needing lower capacities or non-ECC modules should look elsewhere.

Eight-module 256GB capacity

The kit delivers 256GB across eight 32GB sticks, which is the single specification that determines whether the server’s memory slots and maximum supported capacity are satisfied.

Highlights

  • 256GB total capacity scales memory-heavy workloads
  • DDR5 4800 speed feeds data to fast server CPUs
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw per module
  • Validated for Supermicro CloudDC SuperServer systems

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K8
Capacity256GB (8 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (8X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these 288-pin DDR5 RDIMMs fit the memory slots in a Supermicro CloudDC SuperServer SYS-621C-TN12R?

Yes, the kit is listed as compatible with the SYS-621C-TN12R, SYS-611C-TN4R and SYS-121C-TN2R, so the 288-pin DDR5 RDIMM modules will seat in those server boards.

What is the correct order for populating the eight 32 GB modules across the memory channels?

Follow the Supermicro motherboard manual for the specific CPU socket; typically you fill one DIMM per channel starting with the slot farthest from the processor, but the exact sequence varies by board.

Do the registered ECC modules need any firmware update or battery-backed setting to keep error correction active over time?

No firmware or battery is required; ECC and registered operation are handled by the memory controller once the modules are installed and the BIOS recognises the 4800 MT/s CL40 1.10 V configuration.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.