The ASUS Mini PC PN Series is a versatile desktop computer suitable for both business and creative professional environments. Whether you’re upgrading RAM to improve multitasking performance or expanding storage with a new SSD, this compatibility guide covers everything you need to know.
Specifications & Compatibility
The ASUS Mini PC PN Series comes with specific hardware constraints that determine what upgrades are possible:
| RAM Type | DDR4/DDR5 SO-DIMM |
| RAM Slots | 2 |
| Maximum RAM | 64GB |
| Storage Options | M.2 NVMe SSD |
| Specifications | Intel/AMD, Compact Form Factor, Dual SO-DIMM |
RAM Upgrade Guide

Upgrading RAM in your ASUS Mini PC PN Series is one of the most effective ways to improve system responsiveness. The ASUS Mini PC PN Series accepts DDR4/DDR5 SO-DIMM memory modules, supporting up to 64GB when fully populated across 2 DIMM slots.
To determine your current configuration, open System Information on Windows or About This Mac on macOS, then look for “Installed RAM” under the General tab. Most users find that upgrading from 8GB to 16GB provides substantial benefits for everyday computing, whilst 32GB or more benefits video editing, 3D rendering, and virtual machine work.
SSD/Storage Upgrade Guide
Storage upgrades are essential for performance. The ASUS Mini PC PN Series supports M.2 NVMe SSD, giving you options for expansion. Modern NVMe SSDs offer dramatically faster boot times and file transfer speeds compared to older SATA drives.
Check which storage bays are currently in use by opening Device Manager (Windows) or System Report (macOS) to see what’s installed. An empty M.2 slot or 2.5-inch bay means you can add a second drive without removing existing storage.
Step-by-Step Installation
Before starting: Power off the computer completely and unplug the power cable. Ground yourself by touching a metal part of the chassis to prevent electrostatic discharge (ESD).
RAM Installation:
- Remove the side panel or access door (usually held by one or two screws or latches)
- Locate the empty RAM slots near the CPU
- Align the notch in the RAM module with the key in the slot
- Press the module straight down until the retaining clips snap into place on both ends
- Power on and verify the new RAM appears in System Information
SSD Installation (NVMe M.2):
- Locate the M.2 slot on the motherboard (usually marked on the motherboard diagram)
- Remove the small Phillips head screw and standoff if present
- Insert the SSD at a 30-degree angle, then press down and secure the screw
- Close the computer and power on
- Verify the drive appears in BIOS or Windows Disk Management
Compatible Products
When selecting upgrades, ensure you choose components officially compatible with the ASUS Mini PC PN Series:
| Upgrade Type | Recommended Specifications | Maximum Capacity |
| RAM | DDR4/DDR5 SO-DIMM UDIMM | 64GB |
| M.2 SSD | PCIe NVMe (Gen 3 or 4) | 2TB+ available |
| SATA SSD | 2.5-inch form factor | 4TB available |
Troubleshooting
RAM not recognised after installation: Power off, reseat the RAM by removing and reinstalling it, then power back on. If still not recognised, try each module individually in different slots to isolate a faulty module.
SSD not appearing in BIOS: Check that the drive is fully inserted at the correct angle. Power off and remove the SSD, wait 10 seconds, then reinsert it firmly. Some BIOS versions may require enabling NVMe in BIOS settings.
Computer won’t boot after upgrade: Power off and remove the new module, then try to boot with the original configuration. This helps identify whether the issue is with compatibility or installation.
Recommended Products
Based on ASUS Mini PC PN Series compatibility, here are popular upgrade options available on Amazon UK:
- ASUS Mini PC PN Series DDR4 RAM 16GB
- ASUS Mini PC PN Series SSD Upgrade Kit
- Kingston Fury DDR4 RAM
- Samsung 970 EVO Plus NVMe SSD
- Crucial MX500 SSD
Related Apple Upgrade Guides
- Apple Mac Mini M2 Pro Compatibility
- Apple iMac M2 (2023) Compatibility
- Apple iMac M4 (2024) Compatibility
- Apple Mac Pro M2 Ultra Compatibility
- Apple Mac Studio M4 Max/Ultra Compatibility
- Apple Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Upgrading your ASUS Mini PC PN Series with additional RAM and storage is a straightforward process that dramatically improves system performance. With the compatibility information and installation steps provided in this guide, you’re ready to select and install the perfect components for your computing needs.
Recommended 64GB RAM Upgrades

Kingston Technology
Kingston Technology KTD-PE556D4-64G memory module 64 GB 1 x 64 GB DDR5
£1,567.46
View Deal







