The cheapest and most commonly used UTP (Unshielded Twisted Pair) cable is Cat5e (Category 5e) cable. It is widely utilized for Ethernet networking and supports data transfer speeds up to 1 Gbps over distances of up to 100 meters. Cat5e is favored for its balance of cost, performance, and compatibility with existing network infrastructure, making it a popular choice for both residential and commercial applications.
The most commonly used wiring method for residential use is called nonmetallic sheathed cable. Other types of wiring methods are knob and tube, as well as service entrance cable.
DB9 is a connector, not a cable. It is most commonly used for RS-232 serial connections like an external modem.
USB-B to USB-A
about £15 the cheapest
Cat 5E
a. Because most office buildings are not wired with coaxial cable
Cat-3 is the most common and least expensive.
Cat 5E
a. Because most office buildings are not wired with coaxial cable
The connection speed, most commonly used for cable home networks, is three megabytes per second. The Internet connection speeds have increased greatly in the past 10 years.
Cat 5E or Cat5
The average is 3 Megapixel. 3 is the cheapest and most commonly used because its gives a good quality that inst to much or to little.