USB to Ethernet adapter RJ45

A USB 2.0 device is connected to a router, modem, or network switch for a full 10/100 Mbps Ethernet connection.
Adds reliable 10/100Mbps Fast Ethernet network connectivity to your devices
Ethernet RJ45 connector allows for half or full duplex operation and auto-negotiates speed.
Ideal for replacing a broken or malfunctioning network card or upgrading the bandwidth capabilities of an older machine.
 

The USB 2.0 to Fast Ethernet 10/100 RJ45 Network LAN Adapter Card is a simple and easy way to add a network adapter to your computer. It plugs into any available USB port and provides a 10/100 Mbps Ethernet connection. The adapter supports half/full duplex operation and auto-negotiation, so you can be sure that it will work with your network. The adapter is also lightweight and easy to use, making it a great choice for both home and business users. USB 2.0 interface 10/100 Mbps Ethernet RJ45 connector Supports Half/full duplex operation Auto-negotiates speed and duplex for optimal performance Compatible with Windows, Mac OS X.

This unit does not need CD or download, Once you insert to your PC, It mounts a CD drive which you can access and install driver to use.