HIOTECH(TM) 45W 60W & 85W AC Power Adapter Connector Converter For Apple Macbook Pro MagSafe to MagSafe 2 Power Adapter Converter Cable The MagSafe to MagSafe 2 Converter allows you to use the MagSafe connector on your LED Cinema Display, Thunderbolt Display, or MagSafe Power Adapter to charge your MagSafe 2 -equipped Mac computer. 14.5V MagSafe to 14.85V MagSafe 2; 16.5V MagSafe to 16.5V MagSafe 2; 18.5V MagSafe to 20V MagSafe 2. Compatibility: 24-inch Apple LED Cinema Display; 27-inch Apple LED Cinema Display; Apple Thunderbolt Display; Apple 45W MagSafe Power Adaptor; Apple 85W MagSafe Power Adaptor; MacBook Pro with Retina display; MacBook Air with MagSafe 2 power port. Cable Length: 8CM. Wire Material: Aluminum It charge your MagSafe 2-equipped Mac computer