Fiber-optic internet connection is transferred through a new type of cable made from fiberglass. DSL, on the other hand, refers to a direct subscriber line and is provided via phone cables. Fiber internet offers the highest speeds of up to 1 gigabit per second, ideal for pro-gaming, downloading large files, and connecting multiple devices. DSL is great for casual browsing and is generally cheaper. Furthermore, fiber internet is not yet available in all areas, while DSL can be connected to nearly any household.