Cable modems handle the connection into a site over a coaxial cable internet line: modems built specifically for cable-provider broadband service, converting the provider's coaxial signal into a network connection a router can distribute. This is the cable-specific slice of the broader modem category - the part of the connection that has to match the internet service itself.
Confirm the exact modem model is on the internet service provider's approved-device list before purchasing, since cable providers frequently restrict which modems they will provision even among technically compatible hardware. Match the modem's DOCSIS standard and channel-bonding capability to the subscribed service tier, since an older or lower-spec modem can cap throughput well below what the service plan allows. For any site that cannot tolerate an outage, a spare provisioned modem shortens the time to restore service if the primary unit fails. COLAMCO supplies cable modems for the broadband connectivity business, government, and education sites depend on.