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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS720A-E12-RS24U 2TB (16x128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-4MPY-17ENN MPN RS720A-E12-RS24U

2TB kit of sixteen 128GB DDR5 4800 ECC RDIMM modules for ASUS RS720A-E12-RS24U servers

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 2 TB capacity from 16 modules of 128 GB each
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design protects data integrity in servers
  • Low 1.10 V operation reduces power draw per module
  • 288-pin 4Rx4 layout fits compatible ASUS dual-processor servers

2TB DDR5 4800 ECC RDIMM kit

This 2 TB kit contains sixteen 128 GB DDR5 4800 registered DIMMs built for the ASUS RS720A-E12-RS24U dual-processor server. ECC and register buffering protect data integrity in mission-critical workloads. The modules run at 1.1 V with CL40 latency. They are intended for IT teams upgrading that specific 2U platform.

DDR5 4800 registered interface limits

DDR5 4800 (PC5-38400) sets the maximum transfer rate for this kit. The registered design adds a clock cycle, so latency is higher than unbuffered memory. Four-rank 4Rx4 organisation increases density but can restrict the number of modules per channel. Buyers needing higher frequencies or lower latency must choose a different platform.

No heat spreader, 288-pin RDIMM form factor

Modules ship without heat spreaders, relying on server chassis airflow for cooling. The 288-pin DDR5 RDIMM keying prevents insertion into consumer UDIMM slots. Sixteen modules fill every slot in the target 2U system, leaving no room for further expansion. Builders who need spare slots for future growth should verify the motherboard layout first.

How it compares

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

Price $58,050.99
Pricier than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $29.03 per GB
Pricier than about 82% 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 numberMR38400-744K16
Total capacity2 TB (16 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items2 TB (16 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I choose the 16x128GB kit or a smaller capacity?

This kit provides 2TB total using sixteen 128GB modules; no smaller capacity options are offered for this part number.

What does the 4800MHz speed mean for my ASUS RS720A-E12-RS24U server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency, delivering the rated throughput when installed in compatible slots.

How does the 288-pin DDR5 RDIMM interface limit performance?

The 288-pin DDR5 RDIMM form factor supports registered ECC operation at 1.10V, capping speed to the JEDEC 4800MT/s standard for this platform.

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