SLR Mechanical Slide Rail provides smooth and precise motion for photography and videography. With lengths available at 470mm and 670mm, this slide rail features a lens center point travel of 240mm and 440mm. It supports a horizontal load capacity of up to 5kg and a vertical load capacity of 2.5kg. The minimum speed is 0.5mm/s, while it can achieve a maximum speed of 57mm/s. The device allows for a maximum surround angle of 55° and a panorama angle of 125°. It operates on a power input of 15W, with a USB-C input voltage range of 5~12V and a battery voltage of 7.2~8.4V. The net weight is 1.5kg for the 470mm model and 1.7kg for the 670mm model. Package includes one SLR Camera Slide Rail.