Expand your Thunderbolt-equipped Mac with Magma ExpressBox 1T expansion chassis. It lets you use PCIe-based devices, like pro-level audio interfaces, with any Thunderbolt-equipped Mac. That means you can turn your laptop into a portable recording rig with a high track count, low latency, and exceptional stability. The Magma ExpressBox 1T supports one half-length PCI Express card and can be daisy-chained to other Thunderbolt devices. When you need to add a PCIe card to your laptop or compact desktop, grab a Magma ExpressBox 1T Thunderbolt Expansion Chassis!