What type of antenna?

While a boosted antenna can also be plugged into a router with a USB or Ethernet WAN port, enabling the improved Wi-Fi signal to be shared, some marine routers have their own in-built antenna, the best of which is the recently-developed MIMO (Maximum Input Maximum Output) system. With MIMO, a single data stream is broken down into multiple transmissions before being sent out over a number of separate antennae. MIMO receivers have multiple (usually two or four) antennae, allowing them to tune into and recombine the data stream, resulting in improved link retention and increased data capacity.