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Green circuit board with black memory chips, no heat spreader, 288-pin DDR5 UDIMM

NEMIX RAM

NEMIX RAM 48GB DDR5 4800 CL40 2Rx8 1.1V 288-Pin UDIMM for ASUS ROG Strix Z890-F Gaming WiFi memory upgrade

SKU CH-FWAS-7FJH7

48 GB DDR5 4800 CL40 2Rx8 UDIMM at 1.1 V for ASUS ROG Strix Z890-F Gaming WiFi

  • Total capacity48 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 48GB

  • 48 GB capacity expands desktop multitasking headroom
  • DDR5 4800 speed delivers high data throughput
  • CL40 latency supports responsive system operation
  • 1 V voltage reduces power draw and heat
  • 288-pin UDIMM form factor fits compatible motherboard slots

Capacity and compatibility

This NEMIX RAM module provides 48GB of DDR5 memory in a single 288-pin UDIMM. It is validated for the ASUS ROG Strix Z890-F Gaming WiFi motherboard and carries the part number MD38400-4828K1. The kit targets desktop PC owners who need a straightforward capacity increase for this specific platform. Buyers requiring ECC error correction or registered buffering should look elsewhere.

Thermals noise and power

The module operates at the standard DDR5 voltage of 1.10V and runs without a heat spreader. As an unbuffered non-ECC DIMM, it adds minimal electrical load and produces no audible noise. Power draw scales with the 4800 MT/s data rate and the 2Rx8 organisation. Systems without active airflow over the memory slots may see higher temperatures under sustained load.

Build and daily use

The PCB uses major OEM chips from Samsung, Micron or Hynix and is stress tested under load before shipping. Absence of a heat spreader keeps the profile low, which helps when CPU coolers overhang the first slot. Installation follows the usual UDIMM procedure and takes only minutes. The single 48GB stick leaves three slots free for future expansion on four-slot boards.

How it compares

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

Price $661.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $13.79 per GB
Pricier than about 60% 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 Non-ECC Unbuffered UDIMM
Part numberMD38400-4828K1
Total capacity48 GB
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items48 GB (1 × 48 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM

Other versions of this model

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Questions about this item

How do I install the 288-pin DDR5 UDIMM in the ASUS ROG Strix Z890-F Gaming WiFi motherboard, and what step is often missed?

Align the notch on the module with the slot key, press down firmly until both side clips click shut, then verify the system recognises the full 48GB at 4800MT/s in BIOS; the step often missed is fully seating both ends so the clips engage automatically.

What maintenance or replacement will the 48GB DDR5 4800 CL40 module need over its service life?

No scheduled maintenance is required; keep the motherboard firmware updated for memory compatibility improvements, and replace the module only if diagnostic software reports uncorrectable errors or the system becomes unstable.

What limit appears first when the 2Rx8 1.1V DDR5 module runs sustained heavy workloads?

The CAS latency of CL40 at 4800MT/s sets the timing floor; under sustained load the memory controller will hit this latency ceiling before voltage or thermal limits become a factor.

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