AV Accessories: Cables, Power Cords and Fittings

A catch-all aisle: match the connector, not the category

This category gathers many unrelated parts: cable extenders, component and power cables, chargers, wiring fittings and a few items that belong elsewhere, such as drives or toner. Treat the title as the truth and the category label as a hint. Identify the exact connector at both ends and the standard it follows, for instance Thunderbolt 4, HDMI or SATA, then check whether your device needs a male or female end.

Model-specific parts, like coiled power cords made for a particular cart, only fit the equipment named in the title. When in doubt, compare the part number in the title with the label on your equipment. Chargers and adapters must match voltage, current and plug size; a higher current rating is safe, a lower one is not. Component cables carry analog video on three connectors and need matching colored inputs on both devices.

Length and wire gauge on power and signal leads

Lengths in this aisle run from short 0.3 m jumpers to 6 ft and 8 ft leads. Passive digital video cables lose signal as they lengthen, so for 4K or other high-bandwidth signals, buy a certified or active cable instead of stretching a cheap one. On power cords, a 12 AWG label means thick conductors; the lower the AWG number, the more current the wire can carry safely, which matters for heavy loads like display carts.

Questions about AV Accessories: Cables, Power Cords and Fittings

Does a longer cable reduce picture quality?

For digital video it does not fade gradually; it works until the signal is too weak, then flickers or drops out. High-bandwidth signals such as 4K at 60 Hz fail at shorter lengths, so beyond a few meters use a certified high-speed or active cable.

What does AWG mean on a power cord?

AWG is the American Wire Gauge, a thickness scale where a smaller number means a thicker conductor. A 12 AWG cord carries more current with less heating than an 18 AWG one, so match the gauge to the equipment's power rating and the cord length.

Is a Thunderbolt 4 cable the same as a USB-C cable?

They share the connector shape, not the capability. A Thunderbolt 4 cable is built for 40 Gbit/s data and docks or displays, while a plain USB-C cable may handle only charging or slow USB 2.0 data. Check the speed and wattage the listing states.