🔋💻 Micro 19V 65W Laptop Charger
 
(19V 3.42A AC Adapter • 65W • 3.0 mm × 1.0 mm Barrel Connector • No Center Pin)

This ultra‑slim AC adapter delivers 65W of regulated DC power to laptops using the 3.0 mm × 1.0 mm barrel connector. Known as the “micro barrel” or “needle tip,” it was designed for ultra‑compact systems with minimal power draw.
 
🔧 Charger Form
Input: 100–240V AC, 50/60Hz
Output: 19V DC, 3.42A (65W)
Connector: 3.0 mm outer / 1.0 mm inner barrel, no center pin
Inline power brick with detachable AC cord
Common part numbers: ADP-40PH AB, ADP-65JH BB, PA-1650-02, PA-1600-66, PA-3467U-1ACA
 
🖥️ Compatible Devices
🟦 ASUS Eee PC Series
Eee PC 1001P, 1005HA, 1015PE, 1018P
Eee PC 1025C, 1025CE
Eee PC X101, X101CH
EeeBook X205TA
🟦 ASUS Chromebook Series
Chromebook C200MA, C300MA
Chromebook Flip C100PA
🟦 ASUS Vivobook / Zenbook (select models)
Vivobook E200HA, E203NA
Zenbook UX305FA, UX305LA (early configs with micro barrel)
 
✅ Common Uses
🔌 Powering netbooks, Chromebooks, and ultraportables with low power draw
🧩 Replacing lost or damaged OEM 65W micro barrel adapters
🎒 Travel adapter for ultra‑light systems
🧪 Testing compact laptops with a known‑good 65W supply
 
🧠 Signal Format
⚡ Input: Universal AC (100–240V)
🔋 Output: Regulated 19V DC, 65W max
🔌 No center pin — relies on barrel contact only
🔁 Not backward compatible with larger barrel systems — connector is too narrow
 
⚠️ Things to Watch Out For
📉 Not suitable for laptops requiring 75W+ or larger barrel inputs
🔌 Connector must match — not interchangeable with 5.5 mm or 4.8 mm barrels
🧯 Avoid third‑party clones with weak contact — may cause intermittent charging
🌀 Excess heat or frayed cables can cause power dropouts
🧪 Always confirm laptop’s required wattage and connector before swapping adapters
 
🛠️ Quick Tips for Beginners
🧭 Check underside of laptop or original charger for voltage and connector size
🔌 Use only with laptops rated for 65W and 3.0 mm × 1.0 mm input
🧪 If laptop won’t charge, inspect barrel contact and cable integrity
🧯 Label adapters clearly to avoid mix‑ups with standard barrel or USB‑C chargers
🧵 Keep one in your travel kit for legacy netbooks and Chromebooks