Raspberry Pi

Building high-performance IoT nodes, retro gaming consoles, or headless servers requires genuine Raspberry Pi single-board computers. Whether you need the latest Raspberry Pi 5 for desktop-level processing, the reliable Pi 4 Model B for home automation, or the ultra-compact Pi Zero 2 W for space-constrained projects, we have the exact hardware. Backed by 20 years of IT retail experience in Sham Shui Po, our technical team provides on-site component matching and ready-stock availability to ensure your SBC projects boot up flawlessly.

Raspberry Pi Ecosystem: Pi 5, Pi 4 & Pi Zero Series

Selecting the correct Raspberry Pi model is crucial for balancing processing power, physical size, and power consumption. Here is a technical breakdown of our core lineup:

Board Model Key Technical Features Best Use Case
Raspberry Pi 5 PCIe 2.0 interface, Dual 4K display, requires 27W PD Desktop PC replacement, AI vision (Hailo-8L), and high-speed NAS setups.
Raspberry Pi 4 Model B Quad-core 1.5GHz, Gigabit Ethernet, Full-size USB 3.0 The gold standard for Home Assistant servers, RetroPie consoles, and stable IoT gateways.
Raspberry Pi Zero 2 W Quad-core 1GHz (Pi 3 equivalent), Built-in Wi-Fi/BT Smart home hubs and portable IoT devices where space is strictly limited.
Raspberry Pi Zero (W / V1.3) Single-core 1GHz, Ultra-low power consumption Simple headless nodes (e.g., Pi-hole network ad blockers) or battery-powered remote sensors.

Important Note (Hardware Limitations & Adapters): When purchasing any Raspberry Pi Zero model, be highly aware of its port limitations. To save space, the Zero series uses a Mini HDMI port (not Micro HDMI like the Pi 4) and Micro USB ports for data. You cannot plug a standard USB keyboard or mouse directly into a Pi Zero. You must use a Micro USB to USB-A OTG (On-The-Go) adapter. Furthermore, if you are using a Pi 5, you must use the Official 27W USB-C PD Power Supply; standard 5V/3A chargers will restrict USB output to 600mA, causing external SSDs to disconnect.

Frequently Asked Questions (FAQ)

Q: Should I buy a Raspberry Pi 4 or a Raspberry Pi Zero 2 W for my project?
A: It depends on your space and connectivity needs. The Pi 4 is a full-sized board with full-sized USB ports, dedicated Gigabit Ethernet, and up to 8GB of RAM, making it perfect for heavy multitasking or media centers. The Zero 2 W packs similar processing power (comparable to a Pi 3) into a board one-third the size, but it only has 512MB of RAM and requires OTG adapters for USB devices. Choose the Zero 2 W only if physical space is your primary constraint.

Q: Is the original Raspberry Pi Zero still worth buying?
A: Yes, for specific use cases. Because it uses a single-core processor, the original Pi Zero consumes significantly less power than the Zero 2 W or Pi 4. If you are building a battery-operated sensor node that only needs to read data and send it over Wi-Fi once an hour, or a lightweight Pi-hole DNS server, the original Zero is the most cost-effective and power-efficient choice.