Discount Electronics has the cables, adapters, and hardware you need to get you up and running in no time.
Category 6 Cat6 Network Cable All Lengths
USB WiFi Wireless AC Nano 802.11AC USB Adapter
Wireless 802.11N WiFi Card PCI Express Adapter
Gigabit Ethernet Network PCI Express X1 Card Adapter
Aerohive AP250 Indoor Wireless Access Point
HP 10GbE External Mini-SAS 4x Cable 407344-001