Featuring easy access auto sensing 10/100 front Ethernet ports with two color LED indicators per port to quickly distinguish link, speed, & half/full duplex transmission status. The DES-108 switch also supports Auto MDI/MDIX Crossover allowing each port can be plugged directly to a server, hub, router, or switch using regular straight-through twisted-pair Ethernet cables. Support for IEEE 802.1p Qo S is included, which organizes & prioritizes time-sensitive & important data for efficient delivery. The DES-108 Gigabit switch was designed with the environment in mind. It is compliant with Energy Star Level V, CEC, & MEPS regulations which require the use of energy efficient power adapters. Built to comply with Ro HS standards to minimize use of hazardous materials & is packaged with an Energy Star Level V qualified power adapter all in a recyclable packaging making this product truly environmental friendly.