MSI manufactures gaming desktops under the Dragon branded family, featuring models like Trident (compact), Infinite (mid-tower), Codex (full tower), and Aegis. All MSI gaming desktops use standard DDR4/DDR5 RAM and M.2 NVMe SSDs, making upgrades straightforward.
MSI Desktop Product Lines Overview
MSI’s gaming desktop lineup is organized by form factor and performance tier, each designed for different gaming and workstation needs.
| Product Line | Form Factor | Target User | Upgrade Difficulty | Typical RAM Types |
|---|---|---|---|---|
| Trident | Compact / SFF | Space-conscious gamers | Easy | DDR4, DDR5 |
| Infinite | Mid-Tower | Standard gamers | Easy | DDR4, DDR5 |
| Codex | Full Tower | High-performance gamers | Easy | DDR4, DDR5 |
| Aegis | Tower | Budget-conscious gamers | Easy | DDR4 |
MSI Trident Gaming Desktop
MSI Trident is the compact gaming desktop, designed for gamers with space constraints. Despite its small form factor, Trident supports modern DDR5 RAM and multiple NVMe SSDs.
Trident Series Overview
| Trident Generation | Chassis | RAM Type | Max RAM | RAM Slots | M.2 Slots |
|---|---|---|---|---|---|
| Trident X Plus (DDR5) | Compact SFF | DDR5 | 96GB | 2 | 2 |
| Trident X (DDR4) | Compact SFF | DDR4 | 64GB | 2 | 2 |
| Trident 3 | Compact | DDR4 | 32GB | 2 | 1–2 |
Trident Key Features
- Ultra-Compact: Smaller chassis than Infinite and Codex, perfect for TV stands or shelves.
- Limited Upgrade Space: Dual RAM slots and GPU space are tight, but still fully upgradeable.
- Excellent Cooling: Compact design doesn’t compromise on thermal management.
- RGB Lighting: Tempered glass side panel with customizable RGB fans and LED accents.
- PCIe Support: Supports GPU upgrades despite compact form factor.
Full MSI Trident Upgrade Guide
MSI Infinite Gaming Desktop
MSI Infinite is the mid-tower gaming desktop, offering the best balance between performance, upgradeability, and size. Infinite models support high-capacity DDR5 RAM and multiple NVMe SSDs.
Infinite Series Compatibility
| Infinite Generation | Chassis | RAM Type | Max RAM | RAM Slots | M.2 Slots |
|---|---|---|---|---|---|
| Infinite RS (DDR5) | Mid-Tower | DDR5 | 192GB | 2 | 3–4 |
| Infinite RS (DDR4) | Mid-Tower | DDR4 | 128GB | 2 | 2 |
| Infinite 12th/11th Gen | Mid-Tower | DDR4/DDR5 | 96GB | 2 | 2–3 |
Infinite Key Features
- Balanced Size: Mid-tower form factor offers excellent internal space without being oversized.
- Excellent Upgradeability: Spacious design with easy access to RAM, SSDs, and GPU.
- Advanced Cooling: AIO liquid cooling options available in higher-end models.
- Tempered Glass Design: Show off your components with a large tempered glass side panel.
- Cable Management: Optimized layout for clean builds and future upgrades.
Full MSI Infinite Upgrade Guide
MSI Codex Gaming Desktop
MSI Codex is the full-tower gaming desktop, designed for enthusiasts seeking maximum performance and upgradeability. Codex models offer the most internal space for cooling and component expansion.
Codex Series Overview
| Codex Generation | Chassis | RAM Type | Max RAM | RAM Slots | M.2 Slots |
|---|---|---|---|---|---|
| Codex X (DDR5) | Full Tower | DDR5 | 192GB | 2 | 4 |
| Codex C (DDR4) | Full Tower | DDR4 | 128GB | 2 | 2 |
| Codex 12th Gen | Full Tower | DDR4/DDR5 | 96GB | 2 | 2–4 |
Codex Key Features
- Full Tower Design: Maximum internal space for component cooling and future upgrades.
- Dual GPU Support: PCIe slot configuration allows for dual GPU configurations.
- Advanced Cooling: Multiple 120/140mm fan slots and AIO support.
- RGB Integration: Pre-installed RGB fans with MSI Dragon Center synchronization.
- Professional-Grade Build: Excellent cable routing and modular design for enthusiasts.
MSI Aegis Gaming Desktop
MSI Aegis is the budget-friendly gaming desktop line, offering entry-level performance for casual gamers and esports players. Despite the lower price point, Aegis models are fully upgradeable with DDR4 RAM and NVMe SSDs.
| Aegis Model | Form Factor | RAM Type | Max RAM | M.2 Slots |
|---|---|---|---|---|
| Aegis TS-001BUS | Compact | DDR4 | 32GB | 1 |
| Aegis TS | Compact | DDR4 | 32GB | 1–2 |
How to Find Your MSI Desktop Model Number
Your MSI desktop model is displayed in several locations:
- Front or Back Chassis: Look for the product name and model designation (e.g., “MSI Infinite RS”, “MSI Trident X Plus”).
- System Information (Windows): Right-click This PC → Properties. Search for “System Information” and check “System Model”.
- Windows Run Dialog: Press Win+R, type “msinfo32”, and press Enter. Look for “System Model”.
- BIOS/UEFI: Restart your computer and press F2 or Del during startup to enter BIOS and view hardware details.
- MSI Dragon Center: If installed, open Dragon Center to see your system model and component details.
- MSI Support Website: Visit MSI Support and search by model name for specifications.
MSI Desktop RAM Upgrade Instructions
Step 1: Power Down and Unplug
Shut down your MSI desktop completely. Unplug the power cable from the rear. Wait 30 seconds for residual power to discharge.
Step 2: Open the Case
Most MSI gaming desktops have tool-less side panels with tempered glass. Look for a release button or latch on the rear. Gently slide the panel outward. Be careful with tempered glass as it can be delicate.
Step 3: Locate RAM Slots
RAM slots are positioned vertically near the CPU, typically color-coded (blue for DDR4/DDR5). Note the position of any existing RAM modules.
Step 4: Remove Existing RAM (If Replacing)
Press the release clips on both ends of the RAM module outward. The module will pop up at a 45-degree angle. Carefully pull it out.
Step 5: Install New RAM
Align the notch on the bottom of the new RAM with the slot key. Insert at approximately 45 degrees, then press firmly until both clips snap into place.
Step 6: Close and Power On
Replace the side panel carefully and secure it. Reconnect the power cable, press the power button, and allow Windows to boot. The new RAM should be automatically detected.
MSI Desktop SSD Upgrade Guide
All modern MSI gaming desktops (2018+) support M.2 NVMe SSDs. Most models have 2–4 slots depending on the generation and product line.
Finding Your M.2 Slot
Open the case and look for M.2 slots on the motherboard. They are typically labeled “M.2_1”, “M.2_2”, etc., and located near the chipset. Some slots may be covered with heatspreaders or thermal pads.
Installation Steps
- Power off and disconnect the desktop.
- Open the case and locate an available M.2 slot.
- Remove any heatspreader or thermal pad covering the slot.
- If a screw is present in the standoff, remove it.
- Insert your NVMe SSD at a 30-degree angle into the slot.
- Press down gently and secure with the screw.
- Close the case, reconnect power, and boot into BIOS (F2 or Del) to verify the drive is detected.
Compatible RAM for MSI Desktops
RAM compatibility depends on your MSI desktop’s motherboard and CPU generation:
| RAM Type | Speed (MHz) | Common Capacities | Common In |
|---|---|---|---|
| DDR5 | 5600–6000 | 16GB–192GB | MSI Trident X Plus, Infinite RS (DDR5), Codex X |
| DDR4 | 2666–3200 | 8GB–128GB | MSI Trident X, Infinite, Codex (DDR4 models), Aegis |
| DDR3 | 1600–1866 | 2GB–32GB | Older MSI desktops (pre-2016) |
Always check your motherboard manual or MSI’s specifications to confirm exact RAM requirements for your model.
Compatible SSDs for MSI Desktops
| SSD Type | Interface | Form Factor | Speed | Best For |
|---|---|---|---|---|
| NVMe (PCIe 5.0) | PCIe 5.0 | M.2 | 7,000+ MB/s | MSI Codex X, Infinite RS (DDR5) |
| NVMe (PCIe 4.0) | PCIe 4.0 | M.2 | 3,500–5,000 MB/s | Most MSI gaming desktops (2019+) |
| SATA SSD | SATA III | 2.5″ or M.2 | 550 MB/s | Older models or secondary storage |
Popular MSI Desktop Models — Quick Reference
| Model | RAM Slots | Max RAM | M.2 Slots | Upgrade Guide |
|---|---|---|---|---|
| MSI Trident X Plus | 2 | 96GB DDR5 | 2 | Link |
| MSI Infinite RS (DDR5) | 2 | 192GB DDR5 | 3–4 | Link |
| MSI Infinite RS (DDR4) | 2 | 128GB DDR4 | 2 | Link |
| MSI Codex X | 2 | 192GB DDR5 | 4 | Link |
Recommended Products
Find compatible RAM and SSDs for your MSI gaming desktop below:
| Product Type | Brands | Shop |
|---|---|---|
| DDR5 RAM (64GB+) | Corsair, G.Skill, Kingston | View on Amazon UK |
| DDR4 RAM (32GB–128GB) | Corsair, Crucial, Kingston | View on Amazon UK |
| NVMe SSD (2TB+) | Samsung 990 Pro, WD Black, Corsair | View on Amazon UK |
| SATA SSD (1TB) | Samsung 870 EVO, WD Blue, Crucial | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
Related Guides
- Laptop RAM Compatibility Guide (2026) — DDR4, DDR5 & LPDDR5 explained
- Laptop SSD Compatibility Guide (2026) — NVMe, SATA, M.2 sizes
- Laptop Charger Compatibility (2026) — USB-C, Power Delivery & GaN explained

