This connector tip is an accessory for our external batteries and power adapters
One end of this connector tip is a 3.0 x 1.1mm male plug. The other end is a 5.5 x 2.5mm female jack

Connector size: 3.0mm (Outside Diameter) x 1.1mm (Inside Diameter)
Connector Tip Length: 8 mm

3.0 x 1.1mm male connector fits
Part of compatibility models:

ACER

Aspire S7, Aspire S7 11", Aspire S7 13",
Aspire S7-191, Aspire S7-191-6640, Aspire S7-191-6859,
Aspire S7-391, Aspire S7-391-53314G12aws, Aspire S7-391-6478,
Aspire S7-391-6810, Aspire S7-391-6822, Aspire S7-391-73514G25aws,
Aspire S7-391-9839, Aspire S7-391-9864, Aspire S7-391-9886

Zenbook UX21E, Zenbook UX21E-DH52, Zenbook UX21E-DH71,
Zenbook UX21E-Esl4, Zenbook UX21E-Esl8, Zenbook UX21E-KX004V,
Zenbook UX21E-Rhp5, Zenbook UX21E-Rrg5, Zenbook UX21E-XH71,
Zenbook UX31E-DH52, Zenbook UX31E-DH53, Zenbook UX31E-DH72,
Zenbook UX31E-Esl8, Zenbook UX31E-Rhp5, Zenbook UX31E-Rrg5,
Zenbook UX31E-RS18, Zenbook UX31E-Ry009v, Zenbook UX31E-Ry010v,
Zenbook UX31E-XH51, Zenbook UX31E-XH71, Zenbook UX31E-XH72

SAMSUNG

530U3B-A01, 530U3B-A01AU, 530U3B-A04,
530U4B-S01, 530U4B-S01AU, 530U4B-S03,
NP530U3B, NP530U3B-A01CN, NP530U3B-A01HK,
NP530U3B-A01US, NP530U3B-A02FR, NP530U3B-A04CN,
NP530U3B-A04DE, NP530U3BI, NP530U3C,
NP530U3C-A01US, NP530U3C-A02US, NP530U3C-A03US,
NP530U3C-A04US, NP530U3C-A06US, NP530U4B,
NP530U4B-S01CN, NP530U4B-S01FR, NP530U4B-S03CN,
NP535U3C, NP535U3C-A01US, NP535U3C-B01US,
NP540U3C, NP540U3C-A01UB, NP540U3C-A01US,
NP540U3C-A02UB   

900X1B-A01, 900X3A-A01, 900X3A-A03,
900X3A-A04, 900X3A-A05, 900X3A-B01,
900X3A-B02, 900X3A-B03, 900X3A-B04,
900X3C, 900X3C-A01, 900X3C-A04,
900X3C-A05, NP-900X3A-A03US, NP900X1A-A01US,
NP900X1B, NP900X1B-A01AU, NP900X1B-A02DE,
NP900X1B-A02US, NP900X3A, NP900X3A-A01,
NP900X3A-A01DE, NP900X3A-A01FR, NP900X3A-A02,
NP900X3A-A02US, NP900X3A-A03, NP900X3A-A03AU,
NP900X3A-A03US, NP900X3A-A04, NP900X3A-A04US,
NP900X3A-A05, NP900X3A-B01US, NP900X3A-B02,
NP900X3A-B02AU, NP900X3A-B02CN, NP900X3A-B02FR,
NP900X3A-B02US, NP900X3A-B03, NP900X3A-B03US,
NP900X3A-B04, NP900X3A-B04FR, NP900X3A-B05US,
NP900X3B, NP900X3B-A01DE, NP900X3C,
NP900X3C-A01FR, NP900X3C-A01US, NP900X3C-A03US,
NP900X3D, NP900X3D-A01US, NT900X3A-A51

900X4C-A01, 900X4C-A03, 900X4C-A04,
NP900X4B, NP900X4B-A02US, NP900X4C,
NP900X4C-A01US, NP900X4C-A02US, NP900X4C-A03US,
NP900X4D, NP900X4D-A03US