Each NVIDIA adapter card has a different identifier printed on the label: serial number and the card MAC for the Ethernet protocol and the card GUID for the InfiniBand protocol. VPI cards have both a GUID and a MAC (derived from the GUID).
Warning
The product revisions indicated on the labels in the following figures do not necessarily represent the latest revisions of the cards.
![image2022-12-8_16-35-23.png](https://docscontent.nvidia.com/dims4/default/0b0e43d/2147483647/strip/true/crop/572x380+0+0/resize/572x380!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F0000018b-b359-dab5-abab-f779c4e30000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F94799491%2Fimage2022-12-8_16-35-23.png)
MCX683105AN-HDAT Board Label (Example)
![image2022-8-30_9-20-4.png](https://docscontent.nvidia.com/dims4/default/2cca524/2147483647/strip/true/crop/993x647+0+0/resize/993x647!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F0000018b-b359-dab5-abab-f779c4e30000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F94799491%2Fimage2022-8-30_9-20-4.png)