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 anti-static tray

NEMIX RAM

NEMIX RAM RS720A-E12-RS24U 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-4Y9C-B19WH MPN RS720A-E12-RS24U

Eight 64 GB DDR5 4800 CL40 ECC registered DIMMs totalling 512 GB for ASUS RS720A-E12-RS24U servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity with eight 64 GB modules
  • DDR5 4800 MT/s speed rated PC5-38400
  • ECC registered RDIMM for data integrity
  • 1 V operating voltage at CL40 latency
  • 288-pin 2Rx4 layout built for ASUS RS720A-E12-RS24U

512GB DDR5 ECC registered kit

This 512GB kit contains eight 64GB DDR5 4800 ECC registered DIMMs built for the ASUS RS720A-E12-RS24U dual-processor server. Each module runs at 1.1V with CL40 latency and a 2Rx4 organisation using major OEM DRAM. The 288-pin RDIMM form factor fits the server’s memory slots without a heat spreader.

Who this suits and who it does not

IT teams upgrading the named ASUS 2U server to its full 512GB capacity will find a matched, stress-tested set that installs in minutes. Builders working with any other platform, consumer motherboard, or non-registered memory requirement should look elsewhere because the modules are registered ECC RDIMMs validated only for this specific system.

The deciding specification

Registered ECC RDIMM with 2Rx4 organisation at DDR5 4800 CL40 is the single specification that determines compatibility; only systems designed for registered DDR5 ECC memory at this speed and rank configuration can use the kit.

How it compares

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

Price $12,223.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $23.87 per GB
Pricier than about 69% 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 numberMR38400-924K8
Total capacity512 GB (8 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 512GB kit with eight 64GB modules or a smaller capacity for my ASUS RS720A-E12-RS24U?

The 512GB kit fills all eight slots with matched 2Rx4 modules, giving the full capacity the server board supports in one validated package.

What does DDR5 4800 CL40 actually deliver inside this ASUS dual-processor server?

Each module runs at 4800 MT/s with CAS latency 40 at 1.10V, providing registered ECC bandwidth and error correction tuned for the RS720A-E12-RS24U platform.

How does the 288-pin DDR5 RDIMM interface limit speed or capacity in this system?

The 288-pin RDIMM form factor locks in DDR5 electrical signalling; the kit operates at the rated 4800 MT/s and 512GB total without exceeding the server's memory controller specification.

More in Model-Specific Memory Upgrades

Similar items