TRENDnet RB-TPL-405E 4-Port 500Mbps Powerline AV Adapter (Refurbished) Power Source:100~240V AC, 50~60Hz Frequency Band:2 ~50 MHz Modulation:OFDM Symbol Modulation on link synchronization, 1024/256/64/8 - QAM, QPSK, BPSK, ROBO Carrier Coverage:Up to 300m (984ft.) Powerline:Up to 500MbpsEthernet:Up to 2Gbps (Full Duplex mode per port)