Welcome to the store! This network port supports full-duplex, half-duplex auto-negotiation, and flow control. Supports 12K effective media access control address, supports media access control address automatic learning and aging. Features broadcast storm protection, compliant with IEEE802.3, IEEE802.3u standards, full-duplex with IEEE802.3x standards. Supports IEEE802.1p priority protocol mode, secondary static port priority mode, and ToS priority mode. Supports switch system software upgrades, save and restore configuration files. Supports physical isolation and logical isolation. Item Type: Ethernet Fiber Switch Material: Aluminum Alloy + Circuit Board Model: TBC-MC3414ES20A Standard: IEEE802.3 10BASE-T Ethernet IEEE802.3u 100BASE-TX Fast Ethernet IEEE802.3x Protocol: CSMA/CD Data Transfer Rate: Ethernet: 10Mbps (half-duplex), 20Mbps (full-duplex) Fast Ethernet: 100Mbps (half-duplex), 200Mbps (full-duplex) Includes: 1 x Ethernet Fiber Switch 1 x Connector 1 x User Manual Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!