ADTRAN solutions maximize performance, lower costs, and help companies achieve the best return on investment. ADTRAN is committed to achieving success for customers by offering "best-in-class" products with outstanding value. Let ADTRAN work for you.PRODUCT FEATURES:Managed Layer 2 Gigabit Ethernet switch;24 10/100/1000Base-T ports with SFP module slots (21-24) for high-speed uplink or stacking requirements;Uses industry-standard SFP modules;Non-blocking switching capacity: 48 Gbps;1U, 19-inch rackmount metal enclosure;1.7" H, 17.2" W, 7.8" D;Auto-ranging power (100-250 VAC, 50-60 Hz).