EP-303 / D DC PLUG  SOCKET ADAPTOR

4.5mm x 3.0mm DC Plug to Socket Adapter Precision Power Interface

This specialized DC Power Adapter is engineered to bridge the gap between standard power supplies and modern devices requiring a 4.5mm x 3.0mm connection. Widely known as a "Small Blue Tip" or "Ultrabook" connector, this adapter features a high-quality male-to-female design, making it an essential tool for laptop charger repairs and power supply customization.

Key Product Features

• Precision 4.5mm x 3.0mm Dimensions: Specifically designed with a 4.5mm outer diameter and a 3.0mm inner diameter, featuring a precision center pin for accurate power delivery.

• Blue-Coded Tip Identification: Features the industry-standard Blue Tip to allow for instant identification, preventing the use of incorrect sizes on sensitive electronics.

• Male-to-Female Configuration: Features a standard male barrel plug on one side and a corresponding female socket on the other, allowing you to adapt existing cables to new hardware requirements.

• Durable Reinforced Housing: Encased in a rugged, impact-resistant black polymer shell with integrated ridged grips for easy insertion and removal.

• Low-Resistance Signal Path: Built with high-conductivity internal metal components to minimize power loss and ensure stable charging for high-performance devices.

Technical Specifications

• Outer Diameter (OD): 4.5mm.

• Inner Diameter (ID): 3.0mm with Center Pin.

• Connector Type: DC Power Male Plug to DC Power Female Socket.

• Tip Color: Blue (Industry Standard).

• Housing Material: High-Grade ABS Polymer.

• Application: Modern slim laptops (HP, Dell, and others), portable electronics, and specialized DC power projects.

Top 3 Customer Questions & Concerns ‍

 How do I know if this fits my laptop? This connector is typically called the "Small Blue Tip". If your laptop requires a 4.5mm x 3.0mm charger (common in newer Ultrabooks), this adapter will allow you to use a charger with a larger, more common tip size.

Does this adapter change the voltage? No, this is a passive adapter. It only adapts the physical shape of the connector. Always verify that your power supply's output voltage and polarity match the requirements of the device you are connecting.

 Is it secure enough for daily charging? Yes, the precision-machined metal barrel and internal spring-loaded contacts are designed to maintain a firm mechanical and electrical lock, ensuring a reliable charge even with frequent movement.