Power adapter extension cable pair ALLNET ALL-Adapt-Ext5.5-3000 — 2x barrel jack to barrel plug (5.5 mm outer)

Pair of ALLNET power adapter extension cables ALL-Adapt-Ext5.5-3000 provide two matched barrel-socket to barrel-plug leads with a 5.5 mm outer diameter. These extension cables are designed to lengthen DC power connections between a power adapter and equipment that accepts standard 5.5 mm barrel connectors, allowing more flexible device placement and neater cable routing without moving the original adapter.

Advantages

These extension cables offer a simple, low-cost way to increase the reach of existing DC power leads while maintaining the standard 5.5 mm barrel interface. The matched pair ensures consistent polarity and fit for commonly used adapters and devices. Using extension cables reduces strain on original adapter cables and helps organise installation layouts where direct adapter connection is impractical.

Suitable for

• Extending DC power from external adapters to routers, switches, modems and NAS devices that use 5.5 mm barrel connectors
• Reaching wall-mounted or ceiling equipment without relocating power adapters
• Temporary setups, testing benches and lab environments requiring flexible cable length
• Cable management in office and home network installations

Key specifications

• Connector type: barrel jack (female) to barrel plug (male) with 5.5 mm outer diameter
• Quantity: pair of extension leads
• Purpose: DC power extension for devices with matching barrel connectors
• Conductor: insulated DC power cable suitable for low-voltage power delivery
• Compatibility: designed for devices and adapters that use standard 5.5 mm outer diameter barrel connectors

How to use

Connect the barrel plug end of the extension cable to the device or to the adapter, depending on your existing cable orientation, and insert the barrel socket to the matching barrel plug of the other cable or the adapter. Ensure secure seating of the connectors and correct polarity alignment before powering the adapter. Avoid forcing connectors and route cables to prevent sharp bends near the connector ends.

Usage recommendations

Verify that the adapter and device share the same polarity and that the extension cable conductors are rated for the adapter's output current. Use the extension pair only for low-voltage DC power applications with compatible 5.5 mm barrel connectors and keep connections dry and free from dust to maintain reliable contact.