UNIVERSAL 19'' FIT: This 1U vented server rack mount shelf is designed to fit virtually any 19in server rack and can accommodate an internal depth of 7in (18cm) for your data, IT, networking, or other non-rack mount equipment MAXIMIZE VENTILIATION: The vented shelf plate on the cantilever rack shelf ensures consistent airflow to effectively dissipate heat on servers; it also works great to keep your computer and AV equipment cool in your home, studio, or office space HEAVY-DUTY & DURABLE DESIGN: Constructed with SPCC commercial cold-rolled steel, the sturdy front mounted cabinet shelf ensures long term durability and supports a total weight of 44lbs/20kg making it the perfect rack shelf solution for any environment VERSATILE FUNCTIONALITY: At 7in deep, this fixed rack mount shelf is designed to work with any 19in cabinet or equipment rack; it provides additional storage space for mission critical hardware, and can even store your tools or audio / video accessories INDUSTRY-LEADING SUPPORT: Backed for life by StarTech.com and free lifetime technical support on this TAA compliant 1U vented server rack mount shelf, and has been the choice of IT professionals and businesses for over 30 years