Liquid ejection head

A liquid ejection head comprising:

• a substrate including
• a first supply port row which supplies liquid and in which a plurality of supply ports made up of penetrated holes are arranged,
• a first energy generating element row in which a plurality of energy generating elements that generate energy used to eject liquid supplied from the first supply port row are arranged,
• a second supply port row which supplies liquid and in which a plurality of supply ports made up of penetrated holes are arranged,
• a second energy generating element row in which a plurality of energy generating elements that generates energy used to eject liquid supplied from the second supply port row are arranged,
• a first wiring layer configured to drive the energy generating elements,
• a second wiring layer configured to drive the energy generating elements,
• a through hole configured to electrically connect the first wiring layer and the second wiring layer, and
• a wiring for connecting the energy generating elements in the second energy generating element row and the through hole, wherein the wiring is provided between the supply ports in the second supply port row,
• wherein the first energy generating element row, the first supply port row, the second supply port row, and the second energy generating element row are arranged in this order and the through hole is arranged between the first supply port row and the second supply port row.