Complex sentence: Micro-USB connectors, which were announced by the USB-IF on 4 January 2007, have a similar width to Mini-USB, but approximately half the thickness, enabling their integration into thinner portable devices.
Split into simpler sentences: Micro-USB connectors, which were announced by the USB-IF on 4 January 2007. Micro-USB plugs have a similar width to Mini-USB, but approximately half the thickness, enabling their integration into thinner portable devices.