The RTL8100C-LF is a Network Interface Card (NIC) from Realtek, designed for 10/100Mbps Ethernet applications. It supports 10Base-T and 100Base-TX data transfer speeds and is compliant with IEEE 802.3/802.3u/802.3ab standards. It also offers an integrated 10/100Mbps transceiver and supports multiple data framing formats such as 802.1Q VLAN tagging, 802.2 SNAP, 802.3x flow control, and 802.3z Gigabit Ethernet. This product has an 8-bit ISA interface and is capable of auto-negotiation with fast link detection. It also features a low-profile PCI form factor and can be used in either 32 or 64-bit PCI slots. It supports Windows, Linux, Mac, and other operating systems.