Wireless Network Card
From Amazon
Edimax EW-7811UTC - AC600 Mini Dual Band Wireless USB Adapter
The product is available from £13.49 at international stores.
Conrad Electronic
EDIMAX EW-7811UTC Wi-Fi dongle USB 2.0 433 MBit/s
OnBuy
Edimax EW-7811UTC AC600 Wireless Dual-Band Mini USB 2.0 Adapter