The product is a lot of 17 vintage network cards, modems, and adapters from various brands such as 3Com. These PCI LAN cards have a maximum data rate of 100 Mbps and are compatible with PCI ports. Each unit has one port and varies in model. This collection of used network cards would be a great addition for someone looking to expand their computer's networking capabilities with a mix of different brands and models. A huge mixed lot of various model 3com Dlink Netgear etc, all pulled from working environments, please insure compatibility as there is No Return.