Ethernet cards support data transfer rates in the range of:

1. The Ethernet card, or Network Interface Card, is the adapter used to set up a wired network. 2. It is a circuit board mounted on the motherboard and connects the machine to the cable. 3. Ethernet cards can support data transfer between 10 Mbps and 1 Gbps. 4. 1 Gbps is the same as 1000 Mbps, which is why gigabit ethernet carries that name. 5. The other ranges are far outside what the standard defines. _Source: syllabus Computer Science Class 12, Ch 10 'Computer Networks', S10.4.2 Ethernet Card_