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 with black chips and gold contacts in a clear plastic tray

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 256GB (8x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-BHEK-XHNGB MPN RS720A-E12-RS12

Eight 32 GB DDR5 registered ECC modules at 4800 MT/s CL40 1.10 V for 256 GB total capacity

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB kit expands server capacity with eight 32GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 1V operation reduces power draw per module
  • Validated for ASUS RS720A-E12-RS12 dual-processor server

Purpose-built kit

This 256GB kit contains eight 32GB DDR5 4800 CL40 registered ECC RDIMMs built for the ASUS RS720A-E12-RS12 2U dual-processor server. The modules run at 1.1V and use a 1Rx4 layout with major OEM DRAM chips. They are validated for that specific platform and ship new.

Fit and limits

IT teams populating the full eight-slot capacity of an RS720A-E12-RS12 will find this kit matches the board’s registered ECC requirement. Builders using consumer motherboards, workstations that need unbuffered DIMMs, or servers that demand a different speed grade or rank configuration should look elsewhere.

Deciding spec

The registered ECC RDIMM form factor is the single specification that determines whether this kit fits the target server; only platforms designed for registered DDR5 ECC modules can use it.

How it compares

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

Price $7,124.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $27.83 per GB
Pricier than about 78% 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 lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-314K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What limits sustained throughput on the 4800 MT/s DDR5 kit during continuous load?

The 1Rx4 rank organisation and CL40 latency set the bandwidth ceiling; registered ECC buffering adds one cycle per command, so sustained throughput is governed by the DDR5-4800 data rate rather than thermal throttling.

How much heat and noise do the 1.10 V modules add when the server runs all day?

Modules run at 1.10 V with no heat spreaders, so they add minimal thermal load and zero acoustic noise; system fans dominate both temperature and sound inside the ASUS RS720A-E12-RS12 chassis.

Which motherboard and CPU combination must already be present for this 256 GB kit to function?

The kit is validated for the ASUS RS720A-E12-RS12 dual-processor server motherboard; compatible DDR5-4800 registered ECC support in the installed CPUs is required for the 8×32 GB modules to initialise.

More in Model-Specific Memory Upgrades

Similar items