Can someone please tell me what the difference between the below two models? Is one a newer model?
They are both labeled as ds-7604ni-e1-4p-a.
http://www.cctvempire.co.uk/DS-7604NI-E1-4P-A
https://www.jmcsecure.co.uk/proddetail.asp?prod=DS-7604NI-E1-4P&gclid=CO3256WF9coCFe4y0wod1HgO6A
Thanks