Design -- 8-in-1 laptop multi-function DC plugs power converter, match with external laptop DC power battery or laptop universal AC power adapter to charge for your portable PC.
5.5*2.1mm Female base -- All Female bases are 5.5mm x 2.1mm, each power connector tip can plug into a 5.5x2.1mm male connector and change the connector to a different size.
Reliable Quality -- Nickel-plated connectors, fine solder joints, resistance to plugging, and good contact, to ensure the stability, durability and long life of the transmission signal.
Portable and Compact -- Universal laptop notebook charger adapter, portable and compact for your traveling usage.
Universal connector size -- A: 6.0mm( 1.4mm ) to 5.5mm (2.1mm) B: 6.3mm( 3.0mm ) to 5.5mm (2.1mm) C: 5.5mm( 2.5mm ) to 5.5mm (2.1mm) D: 5.5mm( 2.1mm ) to 5.5mm (2.1mm) E: 5.5mm( 1.7mm ) to 5.5mm (2.1mm) F: 4.8mm( 1.7mm ) to 5.5mm (2.1mm) G: 4.0mm( 1.7mm ) to 5.5mm (2.1mm) H: 3.5mm( 1.35mm ) to 5.5mm (2.1mm).