It gives you more length when you are charging your laptop or 12V devices.
1mm DC Tips on it.It has two MALE 5.This will not work with the Micro-Start SPORT or XP-3 since those models only have USB ports and not the 12V and 19V laptop charging capabilities. 20 inch long extension cable;Compatible with: XP-10-HD, XP-10, XP-1;California Residents: WARNING Antigravity 20" DC Extension Cable (XP1, XP10, XP10-HD) - AG-MSA-20 This is a 20 inch long extension cable for use with the MICRO-START XP-1, XP-10 and XP-10-HD models.