Home Store Accessories/Upgrades HDX-SDI PCIe card adapter kit HDX-SDI PCIe card adapter kit If you purchased an HDX-SDI or HD Express video interface with an ExpressCard/34 adapter for laptops, this PCIe card kit will allow you to connect your video breakout box to a Mac or PC tower equipped with at least one available PCIe slot. You can then freely switch between your laptop and tower systems with a simple cable swap. This kit includes an HDMI-to-HDMI cable (six feet in length) for connecting your video breakout box to the PCIe card. This product is unavailable.