Sierra Wireless AC595,AC595U,AC597,AC597E,AC875,AC875U,AC880,AC880E,AC880U,AC881,AC881U,C597,C885,C888,MC5725,MC5725V,MC5727,MC8775,MC8775V,MC8780,MC8781,MC8785V,MC8790,MC8790V,MC8791V,MC8792V USB Driver Developer's Guide