Here is my Linksys WRE54G-UK wireless wifi network range extender.

Tn its original box this has a bracket for wall mount if preferred complete with unopened fixing screws packet. The aerial angle can be adjusted and it can also be table mounted, etc.

In its original packaging with instruction leaflet, installation CD, etc.

There should be an ethernet cable for initial setup - the original is missing but if you need one I can include one. Setup is either by CD and cable connection or automatic by wireless.

It particularly works with Linksys WAP54G, WRT54G and WRT54GS adaptors, routers, etc. 

Compatible with 2.4GHz Wireless-B 802.11b and Wireless G 802.11g. Also IEEE 802.3 and IEEE 802.3u.

Supports 10/100 ethernet.

In excellent good clean little used condition. I have not fully tested it but plugging it in caused a blue LED to light up immediately.

I have seen these for sale at up to £49.