In the documentation, there is a list of NIC's (Network Interface Cards) that are supported.
http://www.serverelements.com/documentation.php
Here is the link to them.
Basically all Ethernet NIC's will/should inter operate, this is because they are manufactured to a standard - IEEE 802.x.
So providing that there is a driver for your card, then it should work seemlessly. Even if they are from different manufacturers, if they are not marked then you could get a hint from the MAC address. This is a 6 Byte address, where the first 3 bytes are unique to each manufacturer and the second 3 bytes are unique to your network device.
So a Cisco product would look like 00-0F-66-27-2A-1B
You have to bear in mind that this is just a hint because Cisco make so many Network devices that they are likely to have serveral ranges elso they are going to run out of MAC Addresses.