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Two green DDR5 RDIMM modules with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 1.1V ECC RDIMM 288-pin 4Rx4 memory upgrade

SKU CH-202H-4BDAZ

256 GB of DDR5 ECC registered server memory in two 128 GB modules running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 256GB capacity handles heavy virtualization workloads
  • DDR5 4800 speed delivers high throughput for data-intensive tasks
  • ECC registered design protects data integrity in servers
  • 1V operation reduces power draw per module
  • Validated for ASUS Z13PE-D16 ensures drop-in compatibility

Server Memory Kit for ASUS Z13PE-D16

This 256 GB kit contains two 128 GB DDR5 ECC RDIMM modules built for the ASUS Z13PE-D16 server board. Registered buffering and on-die error correction protect data integrity in multi-socket workloads. The 4Rx4 organisation fits the platform’s memory topology without extra configuration.

DDR5 4800 Speed and Voltage Limits

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10 V. Registered DIMMs add one clock cycle of command delay, so throughput scales with channel count rather than frequency headroom. No higher JEDEC speed grade is supported by this specification.

Installation Notes and Common Issues

Installation follows standard 288-pin DDR5 RDIMM procedure: align the key notch, press evenly until the retention clips lock, then verify population order in the board manual. The most frequent issue is mixing registered and unbuffered DIMMs, which prevents 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 $7,856.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.69 per GB
Pricier than about 88% 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 numberMR38400-744K2
Total capacity256 GB (2 × 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 items256 GB (2 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 256 GB kit or a smaller capacity for my ASUS Z13PE-D16 server?

The 256 GB kit provides two 128 GB modules for maximum supported capacity. Choose a smaller kit only if your workload does not require the full 256 GB.

What does the 4800 MT/s rating deliver once the modules are installed in the Z13PE-D16?

The modules run at DDR5 4800 with CL40 latency at 1.1 V, giving the rated PC5-38400 bandwidth when the board trains them at that speed.

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

The registered 288-pin DDR5 interface caps transfer rate at 4800 MT/s and requires ECC RDIMM support; the Z13PE-D16 chipset enforces that ceiling.

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