Recent Qubee / Witribe Tariff available here (Witribe acquired Qubee)
Qubee Usb:

In 2015 2016 Qubee USB Monthly Package is cheapest in all usb internet providers available in Karachi / Lahore / Rawalpindi And Islamabad.

Download Limit : 70GB

Speed : 2mbps

Monthly : 1000/- (Inclusive tax 1250)

Usb Activation: 1000/-

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Wi-tribe.pk USB:

Witribe USB has minimum activation charges , Witribe available in Karachi / Lahore / Rawalpindi / Islamabad And Faisalabad.

Download Limit : 100GB

Speed : 2mbps

Monthly : 1399/- (Inclusive tax 1710)

Usb Activation: 500/-