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 a row

NEMIX RAM

NEMIX RAM RS520A-E12-RS24U 128GB (8x16GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-2X67-REJJX MPN RS520A-E12-RS24U

128GB DDR5 4800 ECC registered server memory kit with eight 16GB modules for ASUS RS520A-E12-RS24U

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB DDR5 4800 ECC RDIMM keeps critical workloads stable
  • Eight 16 GB modules fill every slot for maximum capacity
  • Registered design with 1Rx8 organisation reduces electrical load on the server
  • 1 V operation lowers power draw in dense 2U chassis
  • CL40 latency at PC5-38400 delivers responsive throughput for enterprise apps

Purpose-built server kit

This 128GB kit contains eight 16GB DDR5 4800 RDIMM modules validated for the ASUS RS520A-E12-RS24U single-socket 2U server. ECC and registered buffering protect data integrity in mission-critical workloads. The 1Rx8 organisation and 1.1V operation match the platform's native memory architecture.

Sustained-load behaviour

Modules are stress-tested under continuous load to verify stability during extended compute tasks. Registered signalling reduces electrical loading on the memory controller when all twelve slots are populated. CL40 latency and 4800 MT/s throughput deliver consistent bandwidth for virtualisation and database services.

Installation notes

DIMMs insert into the server's 288-pin DDR5 slots following the population sequence in the ASUS service guide. No heat spreaders are fitted, so airflow clearance matches the chassis design. Mixing with different ranks or voltages will prevent the system from posting.

How it compares

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

Price $3,765.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.42 per GB
Pricier than about 83% 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 numberMR38400-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 128GB DDR5 4800 kit draw at 1.1V all day?

The kit runs at 1.1V DDR5 standard voltage; total draw depends on the server workload and the RS520A-E12-RS24U memory controller.

What must the server already have to accept these 288-pin RDIMMs?

The ASUS RS520A-E12-RS24U must support DDR5 ECC registered memory and provide eight free 288-pin RDIMM slots.

Will the CL40 modules run with slower DDR5 already installed?

All slots operate at the speed of the slowest module; the kit will down-clock to match existing DDR5 timings.

More in Model-Specific Memory Upgrades

Similar items