This APC OM-756H Smart-UPS Rackmount Sliding Rails Kit is the perfect solution for protecting your server from power outages. The kit includes everything you need to install and use the slide rails, making it easy to switch between vertical and horizontal orientation. The rails are designed to fit in 42U racks and are compatible with APC's Smart-UPS products. With this kit, you can ensure that your server is always running and protected from power surges. The APC brand is known for its quality and reliability, making this a great investment for any business or personal use. Whether you're a professional or a DIY enthusiast, this Rackmount Sliding Rails Kit is easy to install and will provide you with peace of mind when it comes to power protection.