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 antistatic tray

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-A4K7-SFA8A

128 GB DDR5 4800 ECC registered server kit with four 32 GB 1Rx4 modules at CL40 and 1.1 V for Supermicro X13SEW-TF and X13SEW-F motherboards

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered design detects and corrects single-bit errors
  • 1 V operating voltage reduces power draw per module
  • Qualified for Supermicro X13SEW-TF and X13SEW-F motherboards

128GB DDR5 ECC RDIMM kit

This 128GB kit contains four 32GB DDR5 4800 registered ECC modules. It is built for Supermicro X13SEW-TF and X13SEW-F motherboards that require registered memory with error correction. System integrators and IT teams use it to populate all four slots in a single validated configuration.

DDR5 4800 registered DIMM limits

The modules run at 4800 MT/s with a CAS latency of 40 and operate at 1.1V. Registered buffering adds one clock cycle to the command path, which is mandatory for the target platform. The 288-pin DDR5 form factor fits only DDR5 RDIMM slots; it will not seat in UDIMM, SODIMM or earlier DDR generations.

1Rx4 density and headroom

Each 32GB rank uses a 1Rx4 organisation, giving the kit a total of four ranks across four modules. This density suits virtualisation hosts and database nodes that need maximum capacity per channel. Workloads requiring higher frequencies, lower latencies or non-ECC operation fall outside this module's design envelope.

Highlights

  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered design detects and corrects single-bit errors
  • 1 V operating voltage reduces power draw per module
  • Qualified for Supermicro X13SEW-TF and X13SEW-F motherboards

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K4
Capacity128GB (4 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 Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick this 128GB kit of four 32GB modules or a smaller capacity for my SuperMicro X13SEW-TF?

The kit provides 128GB total across four 32GB RDIMMs, matching the board's DDR5 4800 registered ECC requirement; choose it when your workload needs that much capacity.

What does the 4800 MT/s rating deliver once installed in the server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V, giving the rated throughput and error correction the platform expects.

How does the 288-pin RDIMM interface limit performance on this motherboard?

The registered 288-pin DDR5 form factor caps operation to the platform's supported DDR5 4800 speed and requires ECC registered memory, which this kit supplies.

Also in this aisle

People compared these

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