Alphacool GPX SLI Connector. Fitted to the new GPX graphics cards, SLI bridges are now available. But they aren't just simple SLI bridges: through the option to run LEDs through this SLI bridge, you can illuminate the Alphacool logo. Installation is very simple using the included fittings. The special connectors have a ?" thread on one side and a straight piece of pipe on the other side, which is simply plugged into the SLI bridge (double O-ring). This way it can still be installed if the coolers are already mounted.