I only found two deals I would consider to buy for $30 USD or lower but there are probably better deals from different websites out there that are at or under $ 30 USD.
Corsair case Fan Twin Pack (26.99)
5 D-link Gigabit Unmanned desktop switch ( Can be a 8 D-link for 4 cents cheaper.) (24.99)
Anyone eles find good tech related deals that are under 30 USD?