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 RTL8153B; 1x USB 3.0 Type A; Multi-mode (MMF) and Single mode (SMF) Fiber Compatible.; 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 IT PRO'S CHOICE: Designed for reliability in edge and on-prem deployments, our solutions are lab-tested and field-proven for seamless integration and maximum uptime; Backed by free lifetime 24/5 multi-lingual technical assistance