Specification doesn't provide the maximum and the value in the table is a Provides an "Unofficial cable/connector maximum wattage" then that In most cases that wattage will be significantly below whatĬan actually be handled by the suggested connector and wire. If the table below provides an "OfficialĬable/connector maximum wattage" then that specification has spelled out the Which is far below the maximums supported by the connector and wire. Provide a wide safety margin by defining a value Most of the specifications which spell out the maximum wattage Voltage drop and power dissipation increase as you increase theĬurrent so there isn't a clear maximum wattage at which it stops working. The hardware doesn't immediately burst into flames. If you draw a little more wattage then the maximum, And there's never really an absolute value to the Specifications just provide the suggested connector and wire gauge and never Some of the tables below provide the maximum wattage supported by a powerĬable and its associated power connector. Time has to do with adding more wires and connectors to make sure that none The resistance of connectors tends to increase as theyĪre plugged and unplugged so after enough uses they can overheat and even If you seriously overload a line, the wireĬan get fairly warm. See some power cables with more that one wire for the same voltage. But the losses get worse as the current rises. As long as you don't overload them the voltage drop and extra heatĭon't matter. WhenĬurrent passes through wires and connectors there is a voltage drop and thatĪs heat. Wires and connectors are not perfect conductors. If you'd like more technical data about ATX power connectors then you canįind the current specifications and more at Last updated: JAll about the various PC power supply cables and connectors The various power supply cables
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