Wholesale Dropship Quads| Spy Gear Drop Shipper http://www.safetytechspy.com/wholesale-quads/dr... A quad is an accessory to your surveillance system that splits a video monitor into 4 screens. Without a quad you would only be able view one camera at a time. A quad is only needed when you are using more than one camera and using a VCR or VISEC to record or when you are only monitoring and not recording at all.
