ASUS Pro 15 (2025) M1505H (2025) Specifications
The ASUS Pro 15 (2025) M1505H (2025) is a versatile laptop offering solid performance for everyday computing. This guide covers RAM, SSD, charger compatibility, and upgrade paths for this model. For a comprehensive overview of all ASUS upgradeable models, visit the ASUS Laptop Upgrades hub.
| Component | Specification |
|---|---|
| Processor | Intel Core Ultra 9 185H |
| RAM | DDR5, 2 SODIMM slots (upgradeable) |
| Max RAM | 40GB (2× 20GB) |
| Storage | M.2 NVMe PCIe 4.0, 1 slot |
| Charger | 120W USB-C |
| Ports | Thunderbolt 4, USB 3.2, HDMI 2.1 |
| Display | 15.6 inch 2.8K OLED 120Hz |
| Weight | 1.65 kg (3.64 lbs) |
Memory Upgrade Path

The Pro 15 (2025) M1505H features 2 SO-DIMM slots for DDR5 RAM, allowing upgrades up to 40GB. Both slots are user-accessible, and the upgrade process is straightforward.
Recommended DDR5 RAM Upgrades:
- Corsair Vengeance DDR5 SO-DIMM — Premium DDR5 laptop memory with excellent compatibility.
- Kingston Fury Impact DDR5 SO-DIMM — High-performance DDR5 with solid heat dissipation.
- Crucial DDR5 SO-DIMM — Budget-friendly DDR5 with proven stability.
Storage Expansion (M.2 NVMe)

The Pro 15 (2025) M1505H uses a standard M.2 NVMe SSD with a NVMe PCIe 4.0 interface. The single M.2 slot supports drives up to 2TB.
Recommended M.2 SSDs:
- Samsung 990 Pro NVMe 2280 — Flagship NVMe SSD with exceptional speeds.
- WD Black SN850X 2280 — High-performance NVMe with excellent sustained writes.
- Crucial P5 Plus NVMe 2280 — Excellent value NVMe with strong real-world performance.
Power Delivery & Charging
The Pro 15 (2025) M1505H uses a 120W USB-C charger. This is compatible with any USB-C PD charger of equal or higher wattage from brands like Anker, Ugreen, or the original ASUS charger.
Compatible USB-C PD Chargers:
- Anker 120W USB-C PD Charger — Compact GaN charger with multiple ports. Works with this and other USB-C devices.
- Ugreen USB-C PD Charger (120W+) — Affordable universal charger with fast charging and solid reviews.
- INIU USB-C PD Fast Charger — Budget option with reliable performance and portability.
Port & Docking Capabilities
Connectivity: Thunderbolt 4, USB 3.2, HDMI 2.1
The Thunderbolt 4 ports provide fast external storage and high-bandwidth peripherals. Consider a Thunderbolt dock like the CalDigit TS4 or Belkin Thunderbolt 4 Dock Pro for desktop expansion with multiple displays and storage.
Upgrade Difficulty & Tools Required
The Pro 15 (2025) M1505H has a difficulty rating of 2/5 for upgrades (5 = easiest). The upgrade process is difficult.
Tools needed:
- Phillips screwdriver (M2.5 or similar)
- Plastic spudger or pry tool (for bottom panel clips)
- ESD wrist strap (optional but recommended)
We recommend backing up your data and consulting the official service manual before opening the chassis.
Frequently Asked Questions
Can I upgrade the RAM in the ASUS Pro 15 (2025) M1505H?
Yes, the Pro 15 (2025) M1505H has 2 SO-DIMM slots for user-upgradeable DDR5 memory.
What is the maximum RAM for the Pro 15 (2025) M1505H?
The Pro 15 (2025) M1505H supports up to 40GB of DDR5 memory.
Can I add a second SSD to the Pro 15 (2025) M1505H?
The Pro 15 (2025) M1505H has 1 M.2 slot. You can replace the existing SSD with a larger drive.
Can I use any USB-C charger with the Pro 15 (2025) M1505H?
Yes, any USB-C Power Delivery charger rated for 120W or higher will work.
Is the Pro 15 (2025) M1505H easy to upgrade?
The Pro 15 (2025) M1505H has a difficulty rating of 2/5. Consider professional assistance for upgrades.
Recommended Products
These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.
| Product | Why We Recommend It | Amazon UK |
|---|---|---|
| Corsair Vengeance DDR5 SO-DIMM | Premium DDR5 laptop memory with excellent compatibility. | View on Amazon UK |
| Kingston Fury Impact DDR5 SO-DIMM | High-performance DDR5 with solid heat dissipation. | View on Amazon UK |
| Crucial DDR5 SO-DIMM | Budget-friendly DDR5 with proven stability. | View on Amazon UK |
| Samsung 990 Pro NVMe 2280 | Flagship NVMe SSD with exceptional speeds. | View on Amazon UK |
| WD Black SN850X 2280 | High-performance NVMe with excellent sustained writes. | View on Amazon UK |
| Crucial P5 Plus NVMe 2280 | Excellent value NVMe with strong real-world performance. | View on Amazon UK |
| Anker 120W USB-C PD Charger | Compact GaN charger. Universal solution for USB-C laptops. | View on Amazon UK |
| Ugreen 120W USB-C PD Charger | Affordable universal USB-C charger with fast charging. | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
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