Modular PC

A modular PC is a computer designed with components that can be easily replaced, upgraded, and swapped without specialized tools — or at least more easily than a traditional PC. Unlike standard desktop PCs that require you to select separate motherboard, CPU, RAM, GPU, PSU, and case, modular PCs are built on a standardized module system (like Framework laptop) or use plug-and-play blocks (like Intel NUC Extreme).

The goal of a modular PC is to reduce electronic waste, extend device lifespan, and allow users to upgrade flexibly without replacing the entire machine. From the Framework Laptop 13 (the first commercially successful modular laptop) to the Intel NUC Extreme, Minisforum EliteMini, and the DIY PC ecosystem, this guide will help you understand the pros and cons of modular PCs.

What to Know When Buying a Modular PC

Four main factors: degree of modularity, upgradeability, performance vs standard PCs, and ecosystem and spare parts.

Degree of modularity determines what you can replace. The Framework Laptop lets you replace the CPU (mainboard), RAM, SSD, keyboard, trackpad, webcam, ports, battery — almost everything. The Intel NUC Extreme (as of 2024) lets you swap the discrete GPU (MXM module) and RAM/SSD, but the CPU is soldered. Traditional DIY PCs let you swap everything except the case. More modularity means higher cost.

Upgradeability — the biggest strength of modular PCs. Framework lets you keep the laptop shell, keyboard, screen, battery and just replace the mainboard when a new CPU comes out. This saves tens of millions of VND compared to buying a completely new laptop. However, not all modules are backward compatible — Framework changes mainboard designs every few years.

Performance vs standard PCs — modular PCs often sacrifice some performance for flexibility. The Framework Laptop uses mobile chips (P-series/U-series), not HX-series like gaming laptops. The Intel NUC Extreme has thermal limitations. Traditional DIY PCs still offer the highest performance at 15-30% lower cost.

Ecosystem and spare parts — Framework has its own parts store (Framework Marketplace), but costs are higher than standard PC parts. If the company goes under, you lose your module supply. Traditional DIY PCs have hundreds of motherboard and component brands — no reliance on a single company.

Key Technical Specs

Spec	Description	Recommendation
Modular type	Modular laptop, modular Mini PC, modular case, DIY PC	Depends on portable or stationary needs
CPU	Socket (removable) or soldered (BGA)	Socket for upgrades, BGA for compactness
GPU	MXM removable or soldered	MXM for GPU upgrades (NUC Extreme)
RAM	SO-DIMM, DIMM, soldered	SO-DIMM/DIMM for upgradeability
SSD	M.2 NVMe, SATA, 2230/2280	Standard M.2 NVMe 2280
Ports	I/O modules (Framework), USB-C/Thunderbolt	I/O modules are most flexible
Size	13" laptop to 1L Mini PC	Framework 13", Intel NUC 13 Extreme
Module warranty	12-24 months (per module)	Choose brands with component warranty

Types of Modular PCs

Modular Laptop (Framework)

Led by Framework Computer — a US company specializing in modular laptops. The Framework Laptop 13 and 16 let you replace almost every component: mainboard (CPU), RAM, SSD, keyboard, trackpad, webcam, I/O ports, speakers, battery, screen. The Framework 16 adds a discrete GPU module (via Expansion Bay). Excellent for people who want to keep their laptop long-term (5-10 years). Price: $1,000-2,000 depending on configuration. Drawback: must order from the US (shipping to Vietnam adds $50-150 and import tax).

Modular Mini PC (Intel NUC Extreme, Minisforum)

The Intel NUC Extreme (now ASUS NUC) uses a Compute Element (module containing CPU+RAM+SSD) combined with a discrete MXM GPU module. Allows independent GPU upgrades. Minisforum EliteMini and MSI Cubi have replaceable RAM/SSD but soldered CPU. Suitable for office workers and gamers with limited space. Price $300-1,200.

Modular Case / Flexible DIY PC

Traditional DIY PCs are inherently modular — you choose each component and assemble. But some cases (like Fractal Design North, Corsair 4000D, Lian Li O11 Dynamic) have modular panel designs, allowing flexible removal/addition of brackets, drives, and fans. Modular rackmount cases (like Cooler Master MasterFrame) can change form from ITX to ATX. This is the most flexible and cheapest option (case cost only $30-150).

Standard Compute Modules (Project Keep)

Initiatives like Intel Compute Element, Raspberry Pi Compute Module 4, and Google Project Keep aim to standardize computer modules. You buy a separate compute module and plug it into a baseboard. Ideal for embedded developers and enterprises. Not popular with end users.

Price Tiers

Tier	Price	Features	Examples
Standard DIY PC (low modularity)	$200 - $800	Self-built PC, individually upgradeable, wide compatibility	Ryzen 5 + RTX 3060 build
Modular Mini PC	$300 - $800	Mini PC with discrete MXM GPU module, replaceable RAM/SSD	Intel NUC 13 Extreme, Minisforum HX99G
Modular Laptop	$1,000 - $2,000	Framework Laptop 13/16, replaceable mainboard, I/O, battery, keyboard	Framework Laptop 13 (AMD/Intel), Framework 16
Rack/Enterprise Systems	$800 - $5,000+	Separate compute modules, baseboard, for servers/factories	Intel Compute Element, Raspberry Pi CM4 carrier

Top Brands

Brand	Known For	Segment
Framework	#1 modular laptop worldwide, pioneer, large community	Premium (Laptop)
ASUS (NUC)	Intel NUC Extreme — modular Mini PC with discrete GPU	Premium (Mini PC)
Minisforum	Great value AMD/Intel Mini PCs, many models with discrete GPU	Mid - Premium
Gigabyte (BRIX)	BRIX series modular Mini PCs, replaceable RAM/SSD	Mid Range
Intel	Compute Element — compute module standard for enterprise	Enterprise
Raspberry Pi	Compute Module — embedded module for industry and makers	Basic - Enterprise

Comparison with Other Options

Modular Laptop vs Standard Laptop (Dell XPS, MacBook Pro)

MacBook Pro and Dell XPS cannot be upgraded — RAM and CPU are soldered, SSDs are proprietary, batteries are glued in. After 3-5 years, you must replace the entire machine. A modular laptop lets you replace the mainboard (new CPU), RAM, SSD, battery — extending lifespan to 7-10 years. Initial cost is 10-20% more, but you save 40-60% over 5 years since you don't need to buy a new laptop. Drawback: the Framework is slightly thicker (15.9mm vs 14-15mm for MacBook Air) and heavier (1.3kg vs 1.2kg).

Modular Mini PC vs Full-size DIY PC

A full-size DIY PC delivers 20-30% higher performance than a Mini PC at the same price, has better cooling, can use full-size GPUs (RTX 4090), and is easier to upgrade (ATX motherboards have more slots). A modular Mini PC is 10x smaller, saves space, is more portable, but MXM GPU modules can't match full-size GPUs and are more expensive for the same performance.

Framework vs MacBook Pro: Total Cost of Ownership (TCO)

A Framework 13 (Intel Core Ultra 7, 16GB, 512GB, DIY) costs about $1,000 + $100 shipping/tax = $1,100. After 4 years, upgrading the mainboard (new CPU) + 32GB RAM costs $400-600. Total after 4 years: $1,600 for a still-modern laptop. A MacBook Pro 14 M3 Pro (18GB, 512GB) costs $1,600, and after 4 years you can resell for $500-600 — total cost $1,000-1,100. The Framework is cheaper if you keep it longer than 4-5 years.

Common Mistakes When Buying

• Buying a modular PC thinking it's cheaper than a standard PC — A Framework 13 is more expensive than a Dell XPS 13 with the same specs. Modularity has higher upfront costs due to module design and low-volume production. The benefit is long-term savings, not low initial price.
• Buying Framework without factoring in shipping and tax — Framework has no dealers in Vietnam. Shipping ($25-50) + import tax (10-15%) + domestic shipping = $100-300 extra. If the Framework breaks, repairs take 2-3 weeks shipping to the US.
• Assuming all modules are compatible — Framework changes designs. Gen 13 mainboard (Intel 13th gen) is not compatible with Gen 11 case (different frame). Check compatibility carefully before upgrading.
• Buying NUC Extreme because "the discrete GPU is replaceable" — MXM GPU modules are scarce and expensive. Replacing the GPU on a NUC Extreme is not as easy as DIY PC — only a few module options exist and they cost 1.5-2x standard GPUs.
• Not checking OS compatibility — Framework supports Windows and Linux (Ubuntu, Fedora) excellently. But some I/O modules (HDMI 2.1, DP) may need specific drivers. Check Linux compatibility on the Framework forum before buying.
• Buying a DIY PC without assembly knowledge — Building a PC isn't hard but requires basic knowledge of components and BIOS. If you're not confident, have a shop assemble it (fee $10-30).

Conclusion

Modular PCs are an excellent choice for those who want to reduce electronic waste and make a long-term investment. The Framework Laptop 13 ($1,000-1,400 after shipping and tax) is the #1 choice for modular laptops — it's not perfect (thicker, slightly heavier than a MacBook) but it's the only device that lets you upgrade the CPU, RAM, and I/O. If you need a powerful Mini PC in a small space, the ASUS NUC 13 Extreme ($800-1,200) with discrete MXM GPU is an interesting option. For most users, traditional DIY PCs remain the most practical and economical choice.

Advice: only buy a Framework if you're willing to accept shipping from the US and self-assembly (Framework provides very detailed guides). If you need a laptop immediately with local warranty, Dell XPS, MacBook Air, and Lenovo ThinkPad are still safer options.

Further reading: Framework Community, r/framework, Notebookcheck (laptop reviews)