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【Hardware Quick Guide】US Plug Features: One Prong Wider, Both with Holes + Global Plug Standards Explained
Type A/B Deep Dive & Worldwide Socket Map in 2025 🔌🌍⚡
Hey tech enthusiasts, travelers, and gadget geeks! 😎 Ever wondered why American plugs look so… asymmetric? One flat blade wider than the other, and both often have those little holes? Let’s break it down in this fun, precise hardware mini-lecture — perfect for anyone dealing with international power, buying converters, or just geeking out over electrical standards!
We’ll cover US Type A & B in detail, then zoom out to the major global types with real visuals. Buckle up! 🚀
The iconic North American plug! Here’s what makes it special:
- Type A (Ungrounded):
- Two flat parallel blades/prongs.
- Key feature: One prong is wider (neutral, ~6.35mm) and the other narrower (hot/live, ~4.8mm) — this polarized design prevents incorrect insertion and reduces shock risk.
- Many plugs have small holes near the tip of both prongs → allows secure locking into sockets with retention tabs (common in older US outlets or power strips for better grip).
- Voltage: 100–127V, 60Hz.
- Used in: USA, Canada, Mexico, Japan (100V), parts of Latin America & Asia.
(Real close-up shots of Type A — notice the wider neutral prong and those signature holes! 👀)
- Same two flat blades + a round grounding pin (longer, sticks out farther).
Ground pin ensures safety for appliances with metal casings (laptops, microwaves, etc.).
Still polarized — wider neutral prong.
Holes on blades for locking, just like Type A.
(Type B in action — grounding pin is the hero here! 🛡️)
World Plug Map Quick View (2025 Update)
Here’s a handy visual map showing which countries use which types — super useful for planning trips or buying universal adapters!
(Global plug standards map — red for A/B, blue for C/E/F, green for G, etc.! 📍)


Bottom Line for 2026 Travelers: Grab a universal adapter that covers at least A/B, C/E/F, G + USB-C ports (GaN fast-charge models are game-changers). Always check voltage compatibility — mismatched volts = fried device! 🔥
Got questions about a specific country or adapter recs? Drop a comment below! What’s the weirdest plug you’ve ever encountered? 👇😄