PHS-memory 64GB DDR5 SO-DIMM 5600MHz PC5-44800S CL46 Non-ECC Unbuffered RAM per laptop Asus ExpertBook PM3406CKA-NZ0021X SP621511

64GB of DDR5-5600 memory in a single SO-DIMM module delivers the bandwidth and capacity to transform an Asus ExpertBook PM3406CKA-NZ0021X into a true mobile workstation. With a peak transfer rate of 44.8GB/s, this module keeps demanding applications, virtual machines, and large datasets flowing without bottlenecks.

Overview

PHS-memory engineered this module specifically for the Asus ExpertBook PM3406CKA-NZ0021X, ensuring a drop-in upgrade that matches the original system specifications. The DDR5 SO-DIMM format fits the notebook's memory slot, while the 262-pin interface and 1.1V operating voltage align with the platform's power delivery. Built with dual-rank x8 DRAM chips, the module balances density and performance for stable operation under sustained load.

What stands out

• Massive 64GB capacity in a single module, leaving the second slot free for future expansion up to 128GB.
• DDR5-5600 speed with CL46 latency, tuned for responsive multitasking and fast application launches.
• Non-ECC, unbuffered design matches consumer and prosumer laptop chipsets without unnecessary overhead.
• Low 1.1V operating voltage reduces heat and extends battery life compared to DDR4 equivalents.
• No heat spreader keeps the module low-profile for slim notebook chassis.

Technical details

• Memory type: DDR5
• Form factor: SO-DIMM 262-pin
• Capacity: 64GB (1 x 64GB)
• Speed: 5600MHz (PC5-44800S)
• CAS latency: CL46
• Voltage: 1.1V
• Rank: Dual Rank (2Rx8)
• Error correction: Non-ECC
• Buffering: Unbuffered
• Compatibility: Asus ExpertBook PM3406CKA-NZ0021X
• Heat spreader: No

Our verdict

For users who need maximum memory in an Asus ExpertBook, this 64GB DDR5 module is the definitive upgrade. It doubles the typical 32GB configuration and unlocks the full potential of the platform, all while maintaining compatibility and energy efficiency. A straightforward, high-impact enhancement for professionals on the go.