Features a 1.5 m (5 ft) DC power cord and a barrel connector
This 12V, 1A Wall Adapter supplies up to 1 A at a regulated 12 VDC. The AC adapter works with input voltages of 100 – 240 VAC and has a 1.5 m (5 ft) DC power cord that is terminated by a center-positive, 5.5 × 2.1 mm barrel connector.
replacement power supply for a 12V Linksys WRT54GL router
I bought this as a replacement for a Linksys WRT54GL router. The plug size is correct and of the right type (positive tip). It is reasonably priced and arrived quickly. I have only quickly tested that it works for this emergency backup router before putting it into storage, but it seems to work fine and I'm quite happy with it.
