... each with eight serial- Each channel with separate power switch- Each individual module can be demolished- industrial chassis ... ,elegant shellThe device built-in 16 wireless modules, can be inserted 16 SIM cards, you can also use ... ensure stable operation;2,switch independence, support for the size of SIM card;3,ports support hot-swapping;4, ... 10-21 18:30:28 MODEM POOL 16 ports 32 ports hot selling