Power Supply Wattage
Tip Size / Connector Type Key
C = USB-C
7.4mm = Dell large barrel
4.5mm (Blue Tip) = Dell small barrel
Slim-Tip (Yellow) = Lenovo rectangular yellow connector
Surface = Microsoft Surface Connect
MagSafe / USB-C = Apple
✅ TECHNICIAN QUICK REFERENCE SHEET Manufacturer — Model — Wattage — Tip Size / Connector Type
🔵 MICROSOFT
Manufacturer | Model | Wattage | Tip |
Microsoft | Surface Laptop Studio | 95W | Surface |
Microsoft | Surface Laptop Go | 65W | Surface |
Microsoft | Surface Laptop 2 | 65W | Surface |
Microsoft | Surface Laptop 3 | 65W | Surface |
Microsoft | Surface Book | 102W | Surface |
Microsoft | Surface Book 2 | 102W | Surface |
Microsoft | Surface Book 3 | 127W | Surface |
Microsoft | Surface Pro 3 | 65W | Surface |
Microsoft | Surface Pro 4 | 65W | Surface |
Microsoft | Surface Pro 6 | 65W | Surface |
Microsoft | Surface Pro 7 | 65W | Surface |
🔵 APPLE
Manufacturer | Model | Wattage | Tip |
Apple | MacBookAir10,1 (M1 Air 2020) | 30W | USB-C |
🔵 DELL
Latitude (USB-C unless very old model)
Model | Wattage | Tip |
Latitude 5400 | 65W | USB-C |
Latitude 5410 | 65W | USB-C |
Latitude 5420 | 65W | USB-C |
Latitude 5430 | 65W | USB-C |
Latitude 5440 | 65W | USB-C |
Latitude 5490 | 65W | USB-C |
Latitude 7400 | 65W | USB-C |
Latitude 7400 2-in-1 | 65W | USB-C |
Latitude 7410 | 65W | USB-C |
Latitude 7420 | 65W | USB-C |
Latitude 7430 | 65W | USB-C |
Latitude 7440 | 65W | USB-C |
Latitude 7490 | 65W | USB-C |
Precision (Workstations)
Model | Wattage | Tip |
Precision 3561 | 130W | USB-C (or 7.4mm depending on config) |
Precision 5540 | 130W | USB-C (or 7.4mm) |
Precision 5550 | 130W | USB-C (or 7.4mm) |
Precision 5560 | 130W | USB-C |
Precision 5570 | 130W | USB-C |
Inspiron
Model | Wattage | Tip |
Inspiron 7591 2-in-1 | 65W | USB-C |
🔵 LENOVO
ThinkPad T-Series
Model | Wattage | Tip |
ThinkPad T440s | 45W | Slim-Tip (Yellow) |
ThinkPad T460s | 45W | Slim-Tip (Yellow) |
ThinkPad T470s | 65W | USB-C |
ThinkPad T480s | 65W | USB-C |
ThinkPad T490 | 65W | USB-C |
ThinkPad T490s | 65W | USB-C |
ThinkPad T14 Gen 1 | 65W | USB-C |
ThinkPad T14 Gen 2i | 65W | USB-C |
ThinkPad T14 Gen 2a | 65W | USB-C |
ThinkPad T14 Gen 3 | 65W | USB-C |
ThinkPad T14s Gen 3 | 65W | USB-C |
ThinkPad X-Series
Model | Wattage | Tip |
ThinkPad X280 | 65W | USB-C |
ThinkPad X390 | 65W | USB-C |
ThinkPad X1 Yoga Series
Model | Wattage | Tip |
X1 Yoga 3rd Gen | 65W | USB-C |
X1 Yoga 4th Gen | 65W | USB-C |
X1 Yoga 5th Gen | 65W | USB-C |
X1 Yoga 6th Gen | 65W | USB-C |
ThinkPad L-Series
Model | Wattage | Tip |
ThinkPad L480 | 65W | USB-C |
ThinkPad L490 | 65W | USB-C |
ThinkPad L14 Gen 1 | 65W | USB-C |
ThinkPad L14 Gen 2 | 65W | USB-C |
ThinkPad L15 Gen 3 | 65W | USB-C |
ThinkPad P-Series (High-Power Workstations)
Model | Wattage | Tip |
ThinkPad P1 | 135W | USB-C |
ThinkPad P1 Gen 2 | 135W | USB-C |
ThinkPad P1 Gen 3 | 135W | USB-C |
ThinkPad P1 Gen 4i | 135W | USB-C |