1GbE USB 3.0 TO FIBER OPTIC CONVERTER: For USB-A enabled computers who require occasional access to a fiber LAN, for laptop users who don't have the option of an internal fiber network card TECH SPECS: Gigabit 1000Mbps | 1x Open SFP (MSA compliant) | Realtek RTL8153-VB-CG | 1x USB 3.0 Type-A | Multi-mode (MMF) & Single-mode (SMF) Fiber Comp.| 9K Jumbo Frames | VLAN | USB Bus-Powered MAXIMUM PORTABILITY: Compact, lightweight, and cableless design make this USB NIC / Gigabit Network Adapter easy to securely connect your Laptop to a Gigabit Ethernet Network wherever you go FLEXIBLE OPEN SFP SLOT: Use any MSA compliant SFP module; beneficial for network admins, installation technicians, and those who require seamless access to different types of fiber connectivity THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty on this USB-A to Gigabit Ethernet Adapter and free lifetime 24/5 multilingual technical support based in North America CONNECTIVITY TOOLS: Provided with this device, the application improves performance and security, featuring MAC Address Changer & Wi-Fi Auto Switch utilities