Welcome to our store!</br> 1、Self Adaptive RJ45 Ports: This SFP fiber switch provides multiple SFP optical ports and 10/100M adaptive RJ45 network ports. 2、Lossless Transmission: This Ethernet optical switch supports lossless and efficient transmission of multiple protocols. Full/half duplex self adaptive. Support IEEE802.3x flow control, back pressure flow control. 3、LED Indicator: This Ethernet fast switch is designed with LED indicator to check the status of TX, FX LINK/ACT, POWER, FDX easily. Complies with IEEE 802.3i IEEE 802.3u IEEE 802.3ab IEEE 802.3z 4、Plug and Play: This Ethernet switch is plug and play, support auto flip of MDI/MDI X ports, support jumbo frame size 9K bytes, support the operating temperature range from 0℃ to 60℃. 5、120km Extension: This SFP Ethernet switch can extend the fiber distance from 0 to 120km when used with different types of SFP module. Support media access control address self learning and QoS, ensuring efficient network operation. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: SFP Fiber Switch Material: Metal Supported Protocols: IEEE 802.3i IEEE 802.3u IEEE 802.3ab IEEE 802.3z SFP Ports: 4 RJ45 Ports: 4 Data Rate: 100Mbps for SFP, 10/100Mbps for RJ45 <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x SFP Fiber Switch1 x Power Adapter 1 x User Manual (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service.</br>