18 inches (45cm)
longest i have seen in a store was 100ft but if you need longer get a roll of Ethernet cable and 3 ends for it then make your own length of cable.
100Base-T network require usually cat5 maximum of cable length 100 meters to 380meters.
The minimum length available for a micro usb cable is 3 mm. The micro usb cable is considered to be far more durable that the mini usb cable. You can purchase a micro usb cable at Staples.
The depth of the water should be considered when choosing the length of an anchor cable. The anchor cable needs to be 4 to 7 times longer then the depth of the water.
The various types of Ethernet twisted pair cable. All categories of Ethernet cable (5, 5e, 6, and 6a (sometimes improperly called 6e)) have a maximum length of 100 meters (328 feet) as distances beyond that experience too much loss of signal to be useful for networking purposes.Now having said this, the practical maximum length can be cut much shorter due to interference from high-voltage power lines, crimps or twists in the cable runs, or bad sections within the cable. As such, it is always best to test each run to insure that it is functional before relying on it in a production environment. Further, it is highly advisable to run a second cable when installing long cables so as to save time and hassle later in case one of the two cables either is bad or goes bad over time. In that case, it is a simple issue of terminating the second cable (if it hasn't been already) and getting back up and running. This is a common practice professional network engineers and electricians employ.The differences in each of the categories of cable have to do with the frequencies of signal for which they are designed and, therefore, the maximum throughput speed that they can deliver. Specifically, the standards are:Category 5: 100 MHz, 100 Mbps (Gigabit is possible but at shorter lengths only)Category 5e: 100 MHz, 1 GbpsCategory 6: 250 MHz, 1 Gbps (10 Gbps is possible but at shorter lengths only)Category 6a: 500 MHz, 10 GbpsThere are also cables allegedly labelled category 7 and 7a but they are not yet recognized by the Telecommunications Industry Association (TIA) and, therefore, are not mentioned further in this answer.
Parallel cables are typically used to connect a printer to a computer. It is a long cord with a broad, flat plug on either end. The recommended maximum length of a parallel cord is 6 feet.
For printers, about 10 meters (depends on the printer). Have fun.
The current maximum length for a serial cable is around 50 meters. Different cables have length limits with the maximum varying.
The maximum length of a 1000ft Cat6 cable for networking is 328 feet.
The maximum length of a Cat3 Ethernet cable that can be used for networking purposes is 100 meters.
100
1480 METERS
The maximum length of a 1000 ft Ethernet cable for network connections is 328 feet.
The maximum length of a cat 5 e cable with out a repeater is 100meters
40 Pins and 80 wires. Maximum recommended length is 18" but can purchase 24" cables.
The maximum length of a Cat 3 Ethernet cable that can be used for networking purposes is 100 meters.
maximum is 100 meters or 328 ft