MSI Crosshair 15 A11UX (2021) Specifications
The MSI Crosshair 15 A11UX (2021) 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 MSI upgradeable models, visit the MSI Laptop Upgrades hub.
| Component | Specification |
|---|---|
| Processor | 11th Gen Intel Core i7-11800H |
| RAM | DDR4-3200, 2 SO-DIMM slots (upgradeable) |
| Max RAM | 64GB (2× 32GB) |
| Storage | M.2 2280 PCIe Gen4 NVMe, 2 slots |
| Charger | 150W Barrel connector |
| Ports | 2× USB-A 3.2, 1× USB-C 3.2, HDMI 2.1, 3.5mm jack |
| Display | 15.6" FHD 144Hz IPS |
| Weight | 2.15 kg (4.74 lbs) |
Memory Upgrade Path
The Crosshair 15 A11UX features 2 SO-DIMM slots for DDR4-3200 RAM, allowing upgrades up to 64GB. Both slots are user-accessible, and the upgrade process is straightforward.
Recommended DDR4 RAM Upgrades:
- Corsair Vengeance DDR4 SO-DIMM — Reliable DDR4 laptop memory with wide compatibility.
- Kingston Fury Impact DDR4 SO-DIMM — Compact high-performance DDR4 for laptops.
- Crucial DDR4 SO-DIMM — Affordable DDR4 with solid performance.
Storage Expansion (M.2 NVMe)
The Crosshair 15 A11UX uses a standard M.2 2280 NVMe SSD with a PCIe Gen4 NVMe interface. With 2 M.2 slots, you can run dual NVMe drives for expanded storage.
Recommended M.2 2280 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 Crosshair 15 A11UX uses a 150W Barrel connector charger. We recommend using the original charger or a compatible replacement rated for the same wattage.
Port & Docking Capabilities
Connectivity: 2× USB-A 3.2, 1× USB-C 3.2, HDMI 2.1, 3.5mm jack
A USB-C docking station like the Anker 577 USB-C Hub provides additional ports including HDMI, Ethernet, and USB-A for desktop convenience.
Upgrade Difficulty & Tools Required
The Crosshair 15 A11UX has a difficulty rating of 3/5 for upgrades (5 = easiest). The upgrade process is moderate.
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 MSI Crosshair 15 A11UX?
Yes, the Crosshair 15 A11UX has 2 SO-DIMM slots for user-upgradeable DDR4 memory.
What is the maximum RAM for the Crosshair 15 A11UX?
The Crosshair 15 A11UX supports up to 64GB of DDR4-3200 memory.
Can I add a second SSD to the Crosshair 15 A11UX?
The Crosshair 15 A11UX has 2 M.2 slots. You can add a second NVMe SSD.
What charger does the Crosshair 15 A11UX need?
The Crosshair 15 A11UX uses a 150W Barrel connector charger.
Is the Crosshair 15 A11UX easy to upgrade?
The Crosshair 15 A11UX has a difficulty rating of 3/5. Some care needed with bottom panel clips.
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 DDR4 SO-DIMM | Reliable DDR4 laptop memory with wide compatibility. | View on Amazon |
| Kingston Fury Impact DDR4 SO-DIMM | Compact high-performance DDR4 for laptops. | View on Amazon |
| Crucial DDR4 SO-DIMM | Affordable DDR4 with solid performance. | 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 |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
Related MSI Upgrade Guides
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- MSI Stealth 15M B12U RAM & SSD Upgrade Guide (2022)
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- MSI Upgrade Guide
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