HARDWARE FEATURES Interface 24 10/100Mbps RJ45 Ports AUTO Negotiation/AUTO MDI/MDIX Fan Quantity Fanless Power Consumption Maximum: 3.36W (220V/50Hz) External Power Supply External Power Adapter (Output: 9VDC / 0.6A) Mac Address Table 8K Dimensions ( W x D x H ) 8.7 x 5.0 x 1.8 in. ( 222 x 126 x 45 mm) SOFTWARE FEATURES Transfer Method Store and Forward Advanced Functions Green Technology, saving power up to 67% 802.3X Flow Control, Back Pressure OTHERS Certification FCC, CE, RoHs Package Contents 24-Port 10/100Mbps Desktop Switch TL-SF1024M Power Adapter Installation Guide Environment Operating Temperature: 0?~40? (32?~104?); Storage Temperature: -40?~70? (-40?~158?); Operating Humidity: 10%~90% non-condensing; Storage Humidity: 5%~90% non-condensing http://www.tp-link.com/en/products/details/TL-SF1024M.html