Tesla S870 – where the “S” standard for “Server” – is a 1U rack-mount server case containing four C870 cards. So this product is targeted to be connected to servers. On Figures 4 and 5 you can see a Tesla S870 opened.
Tesla S870 is connected to a server through a cable, which is basically a PCI Express extension. In Figure 6, you can see the connector available on S870 for its connection to a server and on Figures 7 and 8 you can see the PCI Express card that is installed on the server
In Figure 9, you can see the cable used to connect Tesla S870 to a server.