Affiliate disclosure: this page contains affiliate links — if you buy through them we may earn a commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.
Dell Vostro 15 3520 (2022) Specifications
The Dell Vostro 15 3520 (2022) is a professional-grade business laptop for enterprise users. This guide covers RAM, SSD, charger compatibility, and upgrade paths for this model. For a comprehensive overview of all Dell upgradeable models, visit the Dell Laptop Upgrades hub.
| Component | Specification |
|---|---|
| Processor | i5-1235U / i7-1255U |
| RAM | DDR4, 2 slots (upgradeable) |
| Max RAM | 16GB |
| Storage | M.2 2230/2280 NVMe PCIe Gen4, 1 slot + 2.5-inch SATA HDD bay (not with 4-cell battery) |
| Charger | 65W — 4.5mm barrel only (no USB-C charging) |
| Ports | 1x USB-C, 2x USB 3.2, 1x HDMI |
| Display | 15.6″ FHD |
| Weight | 1.6 kg (3.53 lbs) |
Memory Upgrade Path
The Vostro 15 3520 features 2 SO-DIMM slots for DDR4 RAM, allowing upgrades up to 16GB. 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
The Vostro 15 3520 uses a standard M.2 2280 NVMe SSD with a NVMe PCIe Gen4 interface. The single M.2 slot supports drives up to 2TB.
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 Vostro 15 3520 charges through a 65W 4.5mm barrel connector (19.5V DC). Dell did not offer a USB-C charging option on this model, so a USB-C Power Delivery charger will not power it however high its wattage.
If you need a replacement, look for a Dell 65W adapter with the 4.50 × 2.90 mm tip — the same family used across the Vostro and Inspiron ranges of this era.
Port & Docking Capabilities
Connectivity: 1x USB-C, 2x USB 3.2, 1x HDMI
A USB-C docking station like the Anker 577 USB-C Hub provides additional ports including HDMI, Ethernet, and USB-A.
Upgrade Difficulty & Tools Required
The Vostro 15 3520 has a difficulty rating of 4/5 for upgrades (5 = easiest). The upgrade process is straightforward — standard screws and easy component access.
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 Dell Vostro 15 3520?
Yes, the Vostro 15 3520 has 2 SO-DIMM slots for user-upgradeable DDR4 memory, supporting up to 16GB.
What is the maximum RAM for the Vostro 15 3520?
The Vostro 15 3520 supports up to 16GB of DDR4 memory.
Can I add a second SSD to the Vostro 15 3520?
The Vostro 15 3520 has 1 M.2 slot (2230 or 2280) plus a 2.5-inch SATA HDD bay on configurations without the 4-cell battery. You can replace the existing SSD with a larger drive.
Can I use any USB-C charger with the Vostro 15 3520?
No — the Vostro 15 3520 has no USB-C charging at all. It uses a 65W 4.5mm barrel connector.
Is the Vostro 15 3520 easy to upgrade?
The Vostro 15 3520 has a difficulty rating of 4/5. Standard screws and clear access to components.
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 Dell Upgrade Guides
- Dell Battery Replacement: Latitude, XPS & Inspiron Step-by-Step
- Best RAM for Dell Laptops in 2026
- Dell Precision T7920 RAM & SSD Upgrade Guide (2018)
- Dell Precision T7875 RAM & SSD Upgrade Guide (2024)
- Dell Precision T5860 RAM & SSD Upgrade Guide (2024)
- Dell Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Upgrades that fit the Dell Vostro 15 3520
What fits: Memory: DDR4-3200 SO-DIMM, 2 user slots, up to 16GB · Storage: M.2 2280 NVMe PCIe 4.0; 2.5in SATA drive supported · Charger: barrel 4.5mm 65W
Spec source: dell.com (checked 26 Sep 2026).
As an Amazon Associate we earn from qualifying purchases. Prices & availability shown on Amazon.
