http://cdn.teradek.com/Public/Cube/Docs/Teradek_Cube_Reference_Guide_v1_0911.pdf The Teradek Cube 155 HD-SDI Encoder with Wi-Fi is a wireless camera-top video and embedded audio encoder. It connects to a camera via SDI and streams proxy files/dailies in H.264 to a decoder or website. You can stream by dual-band Wi-Fi wherever a network is available, by Ethernet via an optional router, or by an optional 3G/4G modem connection. You can also store the files to a microSD card as the Cube features a microSD slot with support for up to 32GB cards. For mounting, the Cube attaches either to a camera's hot shoe or a cage/rig via an included 1/4"-20 mounting screw. Aside from the SDI input, connections consist of an Ethernet port, a 3.5mm line/mic input, and a headphone jack. A micro-USB slot is available for charging and configuring. The Teradek Cube has a rechargeable internal lithium-ion battery that lasts up to two hours. It can also be powered with the included AC power adapter or by an external battery via a 2-pin LEMO input. An OLED screen indicates the remaining battery life, online status, and the URL being streamed to. Optionally, Teradek offers camera batteries with 2-pin LEMO output so you can easily power both the camera and Teradek with the same battery. The following three 2-pin LEMO batteries can be used for power: the Teradek Canon BP-945, Teradek Panasonic D54, and the Teradek Panasonic VW-VGB6. SDI Connection to a Camera Streams proxy files in H.264 to a decoder or website Streams via Wi-Fi, by Ethernet or optional 3G/4G modem Stores files to an optional microSD card of up to 32GB in capacity Attaches to a camera's hot shoe or to a cage/rig by a 1/4"-20 screw Powered by a two-hour internal battery or by the included AC power adapter An OLED screen indicates battery life, online status, and the URL being streamed to