Still running an audio-production rig on PCIe-card-based interfaces? Need to move to a modern computer? No worries. The Sonnet Echo Express III-D lets you mount up to three of your precious PCIe cards and connect them to your Thunderbolt-equipped Mac or PC. It features three standard PCIe slots, giving you room for three full-sized cards or one standard card and one 2-lane card - all with zero performance loss. The sleek chassis looks great on your desktop, and a pair of additional Thunderbolt jacks let you daisy chain in all of your gear.