Pwr+ 5.5mm Tip Adapter Connector Converter for Lenovo Ideapad Yoga 11 11s 13 2 Pro Flex 14 15, ThinkPad Helix x240 Carbon X1; Compatible P/n 0b46994 0c19868 Ultrabook Laptop Battery Charger Dongle for AC Power Cord Barrel Adaptor FEATURES / POWER SPECS : PWR+ Adapter Converts a regular Lenovo Ideapad/Essential Laptop Charger ! with NO PIN Inside the Tip Connector ! to a Rectangular Type Lenovo Ideapad Yoga/Lenovo ThinkPad Carbon X1 Charger WARRANTY: 30 Days Refund - 24 Months Exchange. PWR+ is WA, USA based company. We are friendly Customer Support Experts SAFETY: Light-Weight and Solid Constructed Plastic from Stain and Warm Resistant Materials. Pwr+ chargers and cords manufactured with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating. CE/FCC/RoHS certified. CONVERTER INPUT COMPATIBILITY: Lenovo ThinkPad - 7.7x5.5mm pin adapter CONVERTER OUTPUT COMPATIBILITY: Lenovo IdeaPad Yoga, Lenovo ThinkPad Yoga, Lenovo ThinkPad Helix, Lenovo ThinkPad Carbon, Lenovo Flex, Lenovo Essential- Rectangular pin adapter