The Dell 65W "Blue Pin" Adapter (19.5V, 3.34A) is the standard power supply for a wide range of modern Dell laptops manufactured in the mid-2010s and later. Rated at 65 watts, it provides sufficient power for ultrabooks, 2-in-1 convertibles, and standard Inspiron models featuring Intel Core i3/i5/i7 processors .
The term "Blue Pin" is critical for compatibility. Dell has transitioned through several connector types. This 4.5mm x 3.0mm connector is physically thinner than older standards and is often, but not always, tipped in blue plastic.
⚠️ Important: The 4.5mm x 3.0mm "Blue Pin" connector is physically smaller and will NOT fit the older 7.4mm "Big Pin" port. Always verify the connector size before purchasing .
This 65W "Blue Pin" adapter works with hundreds of Dell laptop models. Here are the most common series :
When searching for a replacement, these official Dell part numbers correspond to the 4.5mm x 3.0mm "Blue Pin" adapter:
43NY4
C7HFG
492-BBOF, 450-ADTR
LA45NM131, DA45NM131, HA45NM140, HK45NM140
