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Four bare green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM RS720Q-E11-RS8U 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-C6H8-BJ1PG MPN RS720Q-E11-RS8U

256GB DDR5-4800 ECC registered kit of four 64GB modules at CL40 and 1.1V for ASUS RS720Q-E11-RS8U servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design protects data integrity under load
  • 1 V operation reduces server power draw
  • Validated for ASUS RS720Q-E11-RS8U 2U4N high-density server

256GB DDR5 server memory kit

This 256GB kit contains four 64GB DDR5 RDIMM modules rated at 4800MHz with CL40 latency. The modules operate at 1.1V and include ECC error correction with registered buffering for signal integrity. They are built for the ASUS RS720Q-E11-RS8U high-density server platform.

Compatibility and use case

Designed for administrators upgrading the ASUS RS720Q-E11-RS8U 2U4N server where validated DDR5 ECC RDIMM memory is required. Not suitable for consumer motherboards, laptops or workstations that use unbuffered UDIMM modules or a different DDR generation.

DDR5 4800 CL40 registered ECC specification

The decisive specification is the DDR5 4800 CL40 registered ECC RDIMM standard with 2Rx4 organisation. Only systems qualified for this exact module type will recognise the full 256GB capacity and maintain stability under load.

How it compares

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

Price $7,336.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.66 per GB
Pricier than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K4
Total capacity256 GB (4 × 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 items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I confirm the kit runs at 4800 MT/s CL40 after installation?

Check the BIOS or UEFI memory information screen; it should report DDR5 4800 (PC5-38400) with CAS latency 40 and 1.10 V across all four modules.

What ships in the box and is anything else required?

The package contains four 64 GB 288-pin DDR5 RDIMM modules for a total of 256 GB; no extra cables, brackets or heat spreaders are included or needed.

Should I choose the 4 x 64 GB kit or a different capacity for the RS720Q-E11-RS8U?

The RS720Q-E11-RS8U is validated for this 256 GB (4 x 64 GB) DDR5 4800 CL40 ECC RDIMM kit; select it when you need the full qualified capacity.

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