Asymmetric Speed/Distance:DistanceDownstream SpeedUpstream Speed250 ft. (76 m)168 Mbps95 Mbps1000 ft. (304.8 m)126 Mbps54 Mbps2000 ft. (610 m)60 Mbps21 Mbps3000 ft. (914 m)42 Mbps6 Mbps3500 ft. (1 km)35 Mbps1 Mbps Symmetric Speed/Distance: DistanceDownstream SpeedUpstream Speed250 ft. (76 m)121 Mbps144 Mbps1000 ft. (304.8 m)73 Mbps103 Mbps2000 ft. (610 m)45 Mbps37 Mbps3000 ft. (914 m)46 Mbps10 Mbps3500 ft. (1 km)30 Mbps4 Mbps Ethernet Extender Kit 4 Port. Extends 4 ports 10/100Mbps Ethernet RJ45 over copper or CATx line interface, terminal block. The kit includes 2 extenders for near-end (local) far-end (remote) deployment. Typical applications include Enterprise LAN extension, campus LAN expansion. This kit includes a pair of auto-rate Ethernet extenders, using a standard 2-wire connection, which simplifies your life and provides a cost-effective network extension by enabling you to make the most of your pre-existing twisted-pair infrastructure. These 4 port 10BASE-T/100BASE-TX Ethernet Extenders use ADSL technology to provide an easy, inexpensive way to extend the reach of your Ethernet network over ordinary voice-grade copper wire. Devices include external 90-240VAC power supplies.