The nRF5340 DK includes hardware, preprogrammed firmware, documentation, hardware schematics, and layout files.
The nRF5340 DK (PCA10095) comes with a Near Field Communication (NFC) antenna.
Figure 1. nRF5340 DK (PCA10095) and NFC antenna
Hardware files
The hardware design files including schematics, PCB layout files, bill of materials, and Gerber files for the nRF5340 DK are available on the nRF5340 product page.