BU5 – Straight pin-header 2x16, division 2.54
BU9 – Straight pin-header 1x5, division 2.54 / Jumper, division 2.54 (2pcs)
BU10 – Straight pin-header 1x5, division 2.54 / Jumper , division 2.54 (2pcs) / DC2DC_A4 adapter

Solder chip on adapter contactpads.