Hikvision DS-7616N-E2/8P POE NVR - only 8 inputs?

I ordered and received a Hikvision NVR. I ordered the DS-7616N-E2/8P POE NVR but I am wondering if its the 7608 that I received, because there are only 8 camera inputs on the back. If this is the 16 channel how would you be able to use 16 channels if there are only 8 inputs?

Thanks for any help.

There are 8 POE inputs plus a further 8 Cameras can be added via the lan connection, so it's really 8+8 you either fit a POE switch or locally power the other 8 cameras.

Thank you!