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 288-pin DDR5 RDIMM modules in static bag

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 256GB (4×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-C1F9-CMPQ6 MPN RS720A-E12-RS12

256 GB DDR5 ECC registered server memory kit with four 64 GB modules at 4800 MT/s CL40 for ASUS RS720A-E12-RS12 systems

  • Capacity256GB (4 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity with four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operating voltage reduces power draw
  • Validated for ASUS RS720A-E12-RS12 dual-processor server

Compatibility & Fit

This memory kit is built for the ASUS RS720A-E12-RS12 2U dual-processor server. It matches the platform's DDR5 4800 registered DIMM requirement and 288-pin form factor. IT teams managing that chassis can install the four 64 GB modules without configuration changes. Builders using different motherboards or desktop platforms should look elsewhere.

Capacity & Speed Decider

The kit delivers 256 GB total across four 64 GB modules running at DDR5 4800 with CL40 latency. That capacity and speed combination determines whether the server can handle the intended workload. If the application needs more memory or a different data rate, this kit will not meet the requirement.

Highlights

  • 256 GB total capacity with four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operating voltage reduces power draw
  • Validated for ASUS RS720A-E12-RS12 dual-processor server

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K4
Capacity256GB (4 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASUS
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (4X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the ASUS RS720A-E12-RS12 server require all 12 DIMM slots to be populated for this 256 GB kit to operate?

The kit contains four 64 GB registered DDR5 modules; the server will run with only these four installed, though maximum capacity needs all 12 slots filled.

Can I add these 2Rx4 CL40 modules alongside existing 1Rx4 or 2Rx8 RDIMMs in the same server?

Mixing ranks is supported by the platform, but all modules must share the same 4800 MT/s speed and 1.1 V voltage for stable operation.

How do I confirm the kit is running at DDR5 4800 with ECC active after installation?

Check the BIOS memory information screen — it should report 256 GB total, 4800 MT/s data rate, CL40 latency and ECC enabled for each module.

Also in this aisle

People compared these

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