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ASUS G16 (2025) G615 (2025) Specifications
The ASUS G16 (2025) G615 (2025) is a gaming laptop designed for enthusiasts seeking strong performance. 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 275HX |
| RAM | DDR5-5600, 2 SODIMM slots (upgradeable) |
| Max RAM | 64GB (2× 32GB) |
| Storage | M.2 NVMe PCIe 4.0, 2 slots |
| Charger | 280W or 380W — proprietary rectangular barrel (not USB-C) |
| Ports | Thunderbolt 4 or Thunderbolt 5 (varies by CPU tier), USB 3.2, HDMI 2.1 |
| Display | 16 inch 2.5K 240Hz |
| Weight | 2.75 kg (6.06 lbs) |
Memory Upgrade Path
The G16 (2025) G615 features 2 SO-DIMM slots for DDR5-5600 RAM, allowing upgrades up to 64GB. 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 G16 (2025) G615 uses a standard M.2 NVMe SSD with a NVMe PCIe 4.0 interface. With 2 M.2 slots, you can run dual NVMe drives for expanded storage.
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 ROG Strix G16 (2025) charges through a proprietary rectangular barrel connector, using either a 280W or 380W adapter depending on the GPU fitted. It does not charge over USB-C at full power.
This is worth being clear about: the USB Power Delivery standard tops out at 240W, and no laptop of this class is charged over USB-C. If you are replacing a lost adapter you need the ASUS barrel unit at the matching wattage — a USB-C brick of any size will not run this machine under load.
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 G16 (2025) G615 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 G16 (2025) G615?
Yes, the G16 (2025) G615 has 2 SO-DIMM slots for user-upgradeable DDR5 memory.
What is the maximum RAM for the G16 (2025) G615?
The G16 (2025) G615 supports up to 64GB of DDR5-5600 memory.
Can I add a second SSD to the G16 (2025) G615?
The G16 (2025) G615 has 2 M.2 slots. You can add a second NVMe SSD.
Can I use any USB-C charger with the G16 (2025) G615?
No. The ROG Strix G16 (2025) charges through a proprietary rectangular barrel connector using a 280W or 380W adapter. No USB-C charger can power it at full load — USB Power Delivery tops out at 240W.
Is the G16 (2025) G615 easy to upgrade?
The G16 (2025) G615 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 where you can check current prices and availability.
| Product | Why We Recommend It | Amazon |
|---|---|---|
| Corsair Vengeance DDR5 SO-DIMM | Premium DDR5 laptop memory with excellent compatibility. | View on Amazon |
| Kingston Fury Impact DDR5 SO-DIMM | High-performance DDR5 with solid heat dissipation. | View on Amazon |
| Crucial DDR5 SO-DIMM | Budget-friendly DDR5 with proven stability. | View on Amazon |
| Samsung 990 Pro NVMe 2280 | Flagship NVMe SSD with exceptional speeds. | View on Amazon |
| WD Black SN850X 2280 | High-performance NVMe with excellent sustained writes. | View on Amazon |
| Crucial P5 Plus NVMe 2280 | Excellent value NVMe with strong real-world performance. | View on Amazon |
| Ugreen 240W USB-C PD Charger | Affordable universal USB-C charger with fast charging. | View on Amazon |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
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- ASUS Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Upgrades that fit the ASUS ROG Strix G16 G615
What fits: Memory: DDR5-5600 SO-DIMM, 2 user slots, up to 64GB · Storage: 2x M.2 (length unconfirmed) NVMe PCIe 4.0 · Charger: rectangular barrel (ASUS 'Rectangle Conn') 280/380W
Spec source: rog.asus.com (checked 26 Sep 2026).
As an Amazon Associate we earn from qualifying purchases. Prices & availability shown on Amazon.
