4 RJ-45 10/100BASE-TX Ethernet ports with auto MDI/MDIX.Bridged or routed Ethernet encapsulation.ADSL2+: 24 Mbps downstream, 1 Mbps upstream.Antennas: Dual 2x2 built-in MIMO antennas.Frequency range: 2.4 GHz to 2.4835 GHz, EIPR: 18.7dBm.ATM Forum UNI3.1/4.0 PVC (up to 8 PVCs).ADSL2: 12 Mbps downstream, 1 Mbps upstream.G.lite: 1.5 Mbps downstream, 512 Kbps upstream.G.dmt: 8 Mbps downstream, 832 Kbps upstream.In addition, it includes four Ethernet ports for connecting Ethernet-enabled PCs, print servers, and other devices, making the DSL-2740U the logical choice for users wanting a versatile and fast Wi-Fi router. The Wireless N ADSL2+ 4-Port Wi-Fi Router is backward compatible with existing 802.11b and 802.11g wireless equipment, ensuring compatibility with a wide range of wireless devices, making your older devices still relevent. Additionally, it supports WPA/WPA2 and WEP for flexible user access security and data encryption methods, while a built-in WPS button provides an easy way to establish a secure wireless connection. For Quality of Service (QoS), the router supports priority queues to enable a group of home or office users to experience the benefit of a smooth network connection without worrying about traffic congestion. SPI inspects the contents of incoming packets before they are allowed in, while hacker logging helps to protect your network against Denial of Service (DoS) attacks. The DSL-2740U’s security features prevent unauthorized access to the home and office network from wireless devices or from the Internet. It can also be used with 802.11g and 802.11b wireless networks to enable significantly improved reception. Maximize wireless performance by connecting it to computers equipped with wireless N interfaces and stay connected from virtually anywhere at home and in the office. The DSL-2740U reaches wireless speeds that are up to 4 times faster than 802.11g1. With integrated ADSL2/2+, supporting download speeds up to 24 Mbps, firewall protection, Quality of Service (QoS), 802.11n wireless LAN, and 4 Ethernet switch ports, the Wireless N ADSL2+ 4-Port Wi-Fi Router provides all the functions that a home or small office needs to establish a secure and high-speed link to the Internet. The DSL-2740U Wireless N ADSL2+ 4-Port Wi-Fi Router is a versatile, high-performance router for home and the small office. Wireless N300 ADSL2+ Wi-Fi Router DSL-2740U

D link dsl 2640u firmware download