External (USB) Wireless Adapters

TP-Link Wireless N 300 USB Dongle $35
TP-Link Wireless AC 1300 USB Dongle $75

Internal Wireless Adapter Cards

TP-Link Wireless N300 PCI Card $40
TP-Link Wireless N300 PCIEX Card $35
TP-Link Wireless AC1300 PCIEX Card $99

Wireless Routers and Extenders

Edimax Wireless Range Extender $50
TP-Link Wireless N Router 4 port $49