Finding the GUID/MAC and Serial Number on the Adapter Card
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).
Note
The product revisions indicated on the labels in the following figures do not necessarily represent the latest revisions of the cards.
MCX556M-ECAT-S25 Board Label (Example)
![image2019-1-10_18-28-57.png](https://docscontent.nvidia.com/dims4/default/75b8273/2147483647/strip/true/crop/481x316+0+0/resize/481x316!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F00000187-94ca-d3c2-a7af-9fde4d910000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F9342157%2Fimage2019-1-10_18-28-57.png)
Auxiliary PCIe Connection Card Board Label
![image2019-1-10_18-29-16.png](https://docscontent.nvidia.com/dims4/default/d4d43fa/2147483647/strip/true/crop/300x124+0+0/resize/300x124!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F00000187-94ca-d3c2-a7af-9fde4d910000%2Fimages%2Fnetworking%2Fdownload%2Fthumbnails%2F9342157%2Fimage2019-1-10_18-29-16.png)
Slim-Line SAS Harness Board Label
![image2019-1-10_18-29-26.png](https://docscontent.nvidia.com/dims4/default/61876e0/2147483647/strip/true/crop/237x230+0+0/resize/237x230!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F00000187-94ca-d3c2-a7af-9fde4d910000%2Fimages%2Fnetworking%2Fdownload%2Fthumbnails%2F9342157%2Fimage2019-1-10_18-29-26.png)