The CF-R20EP Battery Grip with Cooling Fan & Ethernet features a multispeed fan to keep the camera cool in challenging video production situations and extend capture times. It also features a 2.5G Base-T high speed ethernet port for fast-paced tethered shooting, extended shooting times, and improved handling in the vertical-shooting orientation. The ethernet connection allows you to quickly transmit large numbers of still photos and videos from event venues to editorial offices via its stable wired connection, especially when operating in Dual Shooting mode. The grip's design accommodates two LP-E6P batteries to effectively double battery life. Additionally, the extended design of the grip facilitates a more stable hold and provides an improved multi-controller position. The grip has the same weather-resistant construction as the camera body for use in wet or dusty conditions.