10pcs / 10x 1 Female to 3 Male DC Power Splitter Adapter connector Cable 3ports HUB for 3528 5050 LED strip * Used for: LED Light Strip * No need soldering * 1 Female size : Inner: 2.1mm, Outter: 5.5mm * 3 Male size Outter: 5.5mm, Inner: 2.1mm