A Single Board Computer (SBC) is a complete computer built on a single printed circuit board — including CPU, RAM, storage (microSD/eMMC), and connectivity ports. Unlike a regular PC that requires multiple boards (mainboard, GPU, PSU), an SBC integrates everything on one compact PCB the size of your hand — consuming extremely low power (5-15W) at a very low price (500K - 5 million VND).

Raspberry Pi is the most famous name, but the market includes dozens of competitors: Orange Pi, Banana Pi, Rock Pi, BeagleBone, NVIDIA Jetson, Radxa Rock, and Intel N100 SBC. This guide will help you choose the right SBC for your project — from home servers, robots, smart home setups, to learning programming.

What to Know When Buying an SBC

Five key factors: CPU/SoC, RAM, connectivity and ports, software ecosystem, and power consumption.

CPU/SoC (System on Chip) determines performance. The Raspberry Pi 5 uses a Broadcom BCM2712 (Cortex-A76, 2.4GHz) — enough for retro gaming, lightweight web servers, and smart home. The Orange Pi 5 uses a Rockchip RK3588 (8 cores, 4×A76+4×A55) — 2-3 times more powerful than the Pi 5. The NVIDIA Jetson uses an integrated NVIDIA GPU — powerful for AI/ML. The Intel N100 SBC uses an x86 chip — fully compatible with Windows and Linux.

RAM — SBCs range from 512MB (Raspberry Pi Zero) to 32GB (Orange Pi 5 Max). For most projects (media server, Home Assistant, Pi-hole): 2-4GB is sufficient. For AI inference, storage, servers: 8GB+. For desktop replacement: 16GB+. Note: SBC RAM is typically LPDDR4 or LPDDR5 — soldered on, not upgradable.

Connectivity and ports — GPIO (General Purpose Input/Output) is the soul of an SBC — allowing you to connect sensors, LEDs, motors, and small displays. The Raspberry Pi has a standard 40-pin GPIO (compatible with thousands of shields and HATs). Other SBCs have GPIO but may not be pin-to-pin compatible. Connectivity: USB 3.0, Gigabit Ethernet, WiFi 6, Bluetooth 5, M.2 NVMe (for fast SSDs), eDP/DSI (displays), CSI (cameras), PCIe.

Software ecosystem — Raspberry Pi has the largest ecosystem: Raspberry Pi OS (Debian-based), thousands of tutorials, a 1M+ member forum, and compatibility with every Python library for GPIO. Rockchip-based boards (Orange Pi, Radxa) have decent software but not as good as Pi. Intel N100 SBCs run full Windows and Linux, but GPIO and drivers can be more complex.

Power consumption — Raspberry Pi 5: 5-12W (3W idle). Intel N100 SBC: 15-25W. NVIDIA Jetson Orin: 15-30W. Compared to a desktop PC: 50-150W idle. SBCs are extremely power-efficient — a Raspberry Pi 5 running 24/7 for a full year costs roughly 200K VND in electricity.

Key Specifications

Specification	Description	Recommendation
CPU/SoC	Broadcom, Rockchip, AMD, Intel N100, NVIDIA	Rockchip RK3588 for strongest, Pi for ecosystem
RAM	0.5 - 32GB (LPDDR4/5, soldered)	4GB basic, 8GB+ for servers
GPIO	40-pin (RPi standard) or proprietary	Standard 40-pin RPi for compatibility
Storage	microSD, eMMC (onboard), M.2 NVMe, SATA	M.2 NVMe preferred (SSD 5-10x faster than microSD)
Networking	Gigabit Ethernet, WiFi 5/6, BT 5.0	Gigabit + WiFi 6 is the good standard
Video out	HDMI 2.0 (4K@60), micro HDMI, USB-C DP	HDMI 2.0+ for 4K@60
Power Consumption	3-30W	5-15W for 24/7 operation
Size	65×30mm (Zero) to 100×72mm (Pi 5)	Depends on project

Types of Single Board Computers

General Purpose SBC (Raspberry Pi, Orange Pi, Banana Pi)

Price 500K - 2.5 million VND. ARM-based, low power consumption, full GPIO, large ecosystem. The Raspberry Pi 5 (1-2.5 million VND) is the top choice: 4GB/8GB, Quad Cortex-A76, VideoCore VII GPU, dual HDMI 4K@60, USB 3.0, Gigabit Ethernet, PCIe 2.0 x1, WiFi 5, BT 5.0. The Orange Pi 5 (1.5-3 million VND) is more powerful (RK3588, 8 cores) but its software ecosystem isn't as mature.

High-Performance SBC for Desktop / Media Server (Radxa Rock 5, Odroid N2L)

Performance sufficient to replace a basic PC. The Radxa Rock 5 Model B (RK3588, 8GB/16GB, around 2-4 million VND) features M.2 NVMe, dual HDMI 8K@60, WiFi 6, USB 3.0 x4 — more powerful than the Raspberry Pi 5. Can run Ubuntu desktop, Kodi media center, or Docker servers. The Odroid N2L (1.5 million VND) has an Amlogic S922X, is more power-efficient, and is very stable.

AI / Machine Learning SBC (NVIDIA Jetson, Google Coral)

Powerful GPU for AI inference. The NVIDIA Jetson Orin Nano (7-15 million VND) delivers 40 TOPS (tera operations per second) — capable of running YOLO, Stable Diffusion, and local LLMs. The older Jetson Nano (4-5 million VND) is still adequate for basic AI. The Google Coral TPU (1-2 million VND) is a USB AI accelerator. The Raspberry Pi 5 combined with an AI HAT+ (13 TOPS, 1-2 million VND) is also a budget-friendly option.

x86 SBC (Intel N100, LattePanda)

Uses Intel/AMD x86 chips — runs full Windows and Linux. The Intel N100 SBC (1-3 million VND) like ODYSSEY X86J41x6 or ASUS NUC SBC — enough to run Windows 11, Home Assistant, or a powerful Plex server. Compatible with all Windows software. GPIO is weaker than ARM SBCs. The LattePanda Sigma (5-10 million VND) has an Intel N6000, 16GB RAM, 128GB eMMC — a true desktop replacement.

Price Tiers

Tier	Price	Features	Examples
Ultra Cheap / Microcontroller	100K - 500K VND	Microcontroller (MCU), no Linux, uses Arduino IDE	Raspberry Pi Pico, Arduino Uno R4, ESP32, ESP8266
Basic	500K - 1.5 million VND	ARM, 1-4GB RAM, microSD, GPIO, runs lightweight Linux	Raspberry Pi 5 (4GB), Orange Pi Zero 3, Banana Pi M5
Mid-Range	1.5 - 4 million VND	Powerful ARM (RK3588), 4-16GB RAM, M.2, WiFi 6, dual HDMI	Raspberry Pi 5 (8GB), Orange Pi 5, Radxa Rock 5B, Odroid N2L
High-End	4 - 15 million VND	Powerful ARM + GPU/AI, or x86 (Intel N100/N95), 8-32GB RAM	NVIDIA Jetson Orin Nano, LattePanda Sigma, Intel N100 SBC

Top Brands

Brand	Known For	Segment
Raspberry Pi	Best SBC for beginners, largest ecosystem, standard GPIO	Basic - Mid-Range
Orange Pi	Affordable ARM SBCs, powerful Rockchip RK3588, many options	Basic - Mid-Range
NVIDIA (Jetson)	Most powerful AI SBCs, integrated GPU, for robotics and ML	High-End - Professional
Radxa	Powerful Rock 5 series, M.2 NVMe, dual 8K, competitive pricing	Mid-Range - High-End
Hardkernel (Odroid)	Most stable SBCs, long-term kernel support, loyal community	Mid-Range
DFRobot / LattePanda	x86 SBCs running Windows, for desktop-in-miniature use	High-End

Comparison with Other Options

SBC vs Mini PC (Intel NUC, HP EliteDesk Mini)

x86 Mini PCs (NUC, EliteDesk, Lenovo Tiny) use mobile Intel/AMD chips, run Windows and Linux, are 5-10x more powerful than SBCs, have replaceable RAM/SSD, and come with official warranties. Prices range from 3-10 million VND (used) to 10-20 million VND (new). SBCs are more power-efficient (5-15W vs 15-35W), have GPIO, and are much cheaper. If you need a powerful 24/7 server, a used NUC is a better choice than an SBC. If you need GPIO and want to learn, an SBC is ideal.

SBC vs Arduino / ESP32 (Microcontrollers)

Arduino and ESP32 are microcontrollers — they run simple code, have no OS, no HDMI, and no USB Host. They consume ultra-low power (0.1-0.5W) and are cheap (100-300K VND). Suitable for sensors, motors, and IoT. SBCs run full Linux — can run Python, Node.js, Docker — more powerful but use more power. These are two different devices for different purposes — often combined (SBC + ESP32) in a single project.

Raspberry Pi 5 vs Orange Pi 5

The Orange Pi 5 (Rockchip RK3588) is more powerful than the Raspberry Pi 5: 8 cores (4×A76 + 4×A55) vs 4-core A76, RAM up to 32GB vs 8GB, Mali-G610 GPU vs VideoCore VII, M.2 NVMe vs PCIe 2.0 x1. However, the Raspberry Pi 5 has a much larger ecosystem: 10x more tutorials, 5x more HAT compatibility, 1M+ forum members vs 50K. If you're a beginner, get the Pi 5. If you need performance and know Linux, get the Orange Pi 5.

Common Mistakes When Buying

• Running SBC from microSD and wondering why it's slow — The microSD card is the biggest bottleneck on an SBC. The Raspberry Pi 5 has PCIe 2.0 x1 — attach an NVMe SSD via a HAT/Shield (or use a Radxa Rock with built-in M.2 NVMe). NVMe is 5-10x faster than microSD.
• Buying an overpowered SBC for a simple project — If you only need to run Home Assistant, Pi-hole, or temperature sensors, a Raspberry Pi Zero 2 W (500K VND) is sufficient. Don't buy a Jetson Orin (7-15 million VND).
• Buying an SBC without a heatsink — The Raspberry Pi 5 and Orange Pi 5 generate significant heat under full load (70-85°C). Without a heatsink, the CPU will throttle. Buy a case with a fan (300-500K VND) or at least an aluminium heatsink.
• Not checking the power supply — SBCs use USB-C PD or a dedicated 5V/3A-5A power supply. Using an old phone charger (5V/1A) will cause voltage drops, crashes, and SD card corruption. Buy the official power supply (150-300K VND) from the manufacturer.
• Buying an x86 SBC for a low-power embedded project — An Intel N100 SBC consumes 15-25W — 3-4 times more than a Raspberry Pi 5. If the project runs 24/7, the electricity cost over 3 years may exceed the purchase price difference.
• Forgetting to check software compatibility — Orange Pi and Radxa may not support Home Assistant, Plex, or pre-packaged ARM software. Check carefully before buying if you plan to use commercial software.

Conclusion

Single board computers are fantastic tools for learning, DIY projects, home servers, and IoT. The Raspberry Pi 5 (1-2.5 million VND) is the best choice for beginners — a massive software ecosystem, community support, and broad compatibility. If you need higher performance for a media server or lightweight desktop, the Orange Pi 5 or Radxa Rock 5B (2-4 million VND) with the Rockchip RK3588 delivers 2-3x the performance of the Pi 5. For AI and machine learning, the NVIDIA Jetson Orin Nano (7-15 million VND) is unmatched.

My advice: start with a Raspberry Pi 5 — it's the best-selling SBC of all time for good reason. Don't forget to buy: an official power supply, a cooling case, a 32GB+ memory card (or NVMe SSD with adapter), and an HDMI cable.

Further reading: Raspberry Pi Documentation, r/SBC, Jeff Geerling (SBC Videos)