Most of those samsung sco cameras seem to run on either 12v dc or 24 volt ac. For 16 cameras you will need at least a 12 amp power supply at 12 volts dc, if your cameras are capable I would get a 24v AC power supply at least 6 amp maybe even 10 if you want room for expansion in the future. I have placed a few recommendations below.
12VDC 30 AMP with 18 outputs: http://www.amazon.com/Output-Distributed-Supply-Security-Camera/dp/B00BBKCJ16
24VAC 25/20 amp with 32 outputs: https://www.123securityproducts.com/altv2432600ulcb.html?gclid=CjwKEAjw1KGqBRC55bru-sa7zCcSJAAxsBf5IS7sgtUf7UZxWPLkOh3gB5goxhzRm-Tsuk7sAQowAxoC41zw_wcB
If your camera is capable I would recommend the 24vac one I use several of these and they work well I have however never used the supplier who put up the link.