DS-7616NI-I2-16P versions

Hi, Please excuse me if this has been answered before, I searched for it but couldn't find anything.

I'm looking for a 16 channel Hikvision NVR.

I notice that the DS-7616NI-I2-16P comes in two versions, one with POE capability (-16P suffix) and 16 POE ports on the rear and one without POE capability (no -16P suffix) and just a gigabit network port on the rear.

I combine all my Hikvision network cameras externally at a central point using POE switches, so don't use the NVR POE ports and...

DS-7616NI-I2-16P versions