USB Cards
D-Link DUB-1310 2 Port USB 3.0 PCI Express
$25
Available 
Asus 14-000500020 2 Port USB 2.0 Cable
$15
Available
Asus 14-000012222 2 Port USB 2.0 With Game Port
$10
Available
$25
Available
$15
Available
$10
Available