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
Two green DDR5 RDIMM sticks, bare chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade for RS520A-E12-RS12U

SKU CH-58R9-DZ3YD MPN RS520A-E12-RS12U

64 GB dual-channel DDR5 kit at 4800 MT/s with ECC and registered buffering for the ASUS RS520A-E12-RS12U server

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity with two 32 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM for server reliability
  • CL40 latency at 1.1 V operating voltage
  • 288-pin 1Rx4 design built for ASUS RS520A-E12-RS12U

System-Specific DDR5 ECC RDIMM Kit

This 64 GB kit contains two 32 GB DDR5 4800 CL40 registered DIMMs built for the ASUS RS520A-E12-RS12U single-socket 2U server. ECC and registered buffering protect data integrity under sustained enterprise workloads.

Check DIMM Slots and Firmware

Verify the server has at least two free 288-pin DDR5 RDIMM slots and that the BIOS is updated to support 1Rx4 modules at 1.1 V. The kit is validated only for the named ASUS model; other platforms may not post or may run at reduced speeds.

Two-Module Kit Enables Dual-Channel Operation

Installing the matched pair populates two channels, doubling memory bandwidth compared with a single DIMM. No heat spreaders are included, so airflow within the 2U chassis must meet ASUS thermal guidelines for bare modules.

How it compares

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

Price $1,720.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.89 per GB
Pricier than about 74% 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 numberMR38400-314K2
Total capacity64 GB (2 × 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 items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include two 32 GB modules or do I need to buy a second stick separately?

The kit contains two 32 GB modules for a total of 64 GB, so no additional sticks are required.

Should I choose the CL40 4800 MHz version or a lower-latency alternative for this server?

This kit is specified at CL40 and 4800 MHz, matching the ASUS RS520A-E12-RS12U qualified configuration.

What does the 4800 MT/s rating mean once the memory is installed in the RS520A-E12-RS12U?

The modules will operate at 4800 MT/s with CL40 timings at 1.1 V, delivering the rated PC5-38400 bandwidth in the qualified server.

More in Model-Specific Memory Upgrades

Similar items