1. Works great with HP ZBook X2 G4 Detachable Mobile Workstation Laptop
2. DC Output Volt: 19.5V
3. Power Jack Size: Internal Diameter: 3.0  mm External Diameter: 4.5 mm
4. DC Output Current: 3.33A or 4.62A (Check the power info written on the label of the adapter or on the label of the Desktop)
5. A power cord cable will be provided for each adapter. (US Plug, or EU, UK, AU plug, based on the shipping address or order message)

Some Compatible Product # for your reference:

2ZB79EA

2ZB80EA

2ZB81EA

2ZB82EA

2ZB83EA

2ZB84EA

2ZB85EA

2ZB86EA

2ZB87EA

2ZB98EA

ZBKCREATEX2G4MWPRE

2ZB81ET

2ZB79ET

2ZB80ET

2ZB82ET

2ZB83ET

2ZB84ET

2ZB85ET

2ZB86ET

2ZB87ET

3FB83UT

3FB84UT

3FB85UT

3FB86UT

3FB87UT

3FB88UT

3FB89UT

3JY49UT

3JY50UT

3GS13PA

3GW58PA

3GW60PA

3GW61PA

3JS60PA

3JS71PA

3JS72PA

3KL93PA

3KL94PA

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For HP Laptop Notebook PC Computer